---
_id: '7792'
abstract:
- lang: eng
  text: Phonon polaritons—light coupled to lattice vibrations—in polar van der Waals
    crystals are promising candidates for controlling the flow of energy on the nanoscale
    due to their strong field confinement, anisotropic propagation and ultra-long
    lifetime in the picosecond range1,2,3,4,5. However, the lack of tunability of
    their narrow and material-specific spectral range—the Reststrahlen band—severely
    limits their technological implementation. Here, we demonstrate that intercalation
    of Na atoms in the van der Waals semiconductor α-V2O5 enables a broad spectral
    shift of Reststrahlen bands, and that the phonon polaritons excited show ultra-low
    losses (lifetime of 4 ± 1 ps), similar to phonon polaritons in a non-intercalated
    crystal (lifetime of 6 ± 1 ps). We expect our intercalation method to be applicable
    to other van der Waals crystals, opening the door for the use of phonon polaritons
    in broad spectral bands in the mid-infrared domain.
acknowledgement: J.T.-G. and G.Á.-P. acknowledge support through the Severo Ochoa
  Program from the Government of the Principality of Asturias (nos. PA-18-PF-BP17-126
  and PA-20-PF-BP19-053, respectively). J.M.-S. acknowledges finantial support from
  the Clarín Programme from the Government of the Principality of Asturias and a Marie
  Curie-COFUND grant (PA-18-ACB17-29) and the Ramón y Cajal Program from the Government
  of Spain (RYC2018-026196-I). K.C., X.P.A.G., H.V. and M.H.B. acknowledge the Air
  Force Office of Scientific Research (AFOSR) grant no. FA 9550-18-1-0030 for funding
  support. I.E. acknowledges financial support from the Spanish Ministry of Economy
  and Competitiveness (grant no. FIS2016-76617-P). A.Y.N. acknowledges the Spanish
  Ministry of Science, Innovation and Universities (national project no. MAT2017-88358-C3-3-R)
  and the Basque Government (grant no. IT1164-19). Q.B. acknowledges the support from
  Australian Research Council (grant nos. FT150100450, IH150100006 and CE170100039).
  R.H. acknowledges support from the Spanish Ministry of Economy, Industry, and Competitiveness
  (national project RTI2018-094830-B-100 and the Project MDM-2016-0618 of the María
  de Maeztu Units of Excellence Program) and the Basque Goverment (grant no. IT1164-19).
  P.A.-G. acknowledges support from the European Research Council under starting grant
  no. 715496, 2DNANOPTICA.
article_processing_charge: No
article_type: original
author:
- first_name: Javier
  full_name: Taboada-Gutiérrez, Javier
  last_name: Taboada-Gutiérrez
- first_name: Gonzalo
  full_name: Álvarez-Pérez, Gonzalo
  last_name: Álvarez-Pérez
- first_name: Jiahua
  full_name: Duan, Jiahua
  last_name: Duan
- first_name: Weiliang
  full_name: Ma, Weiliang
  last_name: Ma
- first_name: Kyle
  full_name: Crowley, Kyle
  last_name: Crowley
- first_name: Ivan
  full_name: Prieto Gonzalez, Ivan
  id: 2A307FE2-F248-11E8-B48F-1D18A9856A87
  last_name: Prieto Gonzalez
  orcid: 0000-0002-7370-5357
- first_name: Andrei
  full_name: Bylinkin, Andrei
  last_name: Bylinkin
- first_name: Marta
  full_name: Autore, Marta
  last_name: Autore
- first_name: Halyna
  full_name: Volkova, Halyna
  last_name: Volkova
- first_name: Kenta
  full_name: Kimura, Kenta
  last_name: Kimura
- first_name: Tsuyoshi
  full_name: Kimura, Tsuyoshi
  last_name: Kimura
- first_name: M. H.
  full_name: Berger, M. H.
  last_name: Berger
- first_name: Shaojuan
  full_name: Li, Shaojuan
  last_name: Li
- first_name: Qiaoliang
  full_name: Bao, Qiaoliang
  last_name: Bao
- first_name: Xuan P.A.
  full_name: Gao, Xuan P.A.
  last_name: Gao
- first_name: Ion
  full_name: Errea, Ion
  last_name: Errea
- first_name: Alexey Y.
  full_name: Nikitin, Alexey Y.
  last_name: Nikitin
- first_name: Rainer
  full_name: Hillenbrand, Rainer
  last_name: Hillenbrand
- first_name: Javier
  full_name: Martín-Sánchez, Javier
  last_name: Martín-Sánchez
- first_name: Pablo
  full_name: Alonso-González, Pablo
  last_name: Alonso-González
citation:
  ama: Taboada-Gutiérrez J, Álvarez-Pérez G, Duan J, et al. Broad spectral tuning
    of ultra-low-loss polaritons in a van der Waals crystal by intercalation. <i>Nature
    Materials</i>. 2020;19:964–968. doi:<a href="https://doi.org/10.1038/s41563-020-0665-0">10.1038/s41563-020-0665-0</a>
  apa: Taboada-Gutiérrez, J., Álvarez-Pérez, G., Duan, J., Ma, W., Crowley, K., Prieto
    Gonzalez, I., … Alonso-González, P. (2020). Broad spectral tuning of ultra-low-loss
    polaritons in a van der Waals crystal by intercalation. <i>Nature Materials</i>.
    Springer Nature. <a href="https://doi.org/10.1038/s41563-020-0665-0">https://doi.org/10.1038/s41563-020-0665-0</a>
  chicago: Taboada-Gutiérrez, Javier, Gonzalo Álvarez-Pérez, Jiahua Duan, Weiliang
    Ma, Kyle Crowley, Ivan Prieto Gonzalez, Andrei Bylinkin, et al. “Broad Spectral
    Tuning of Ultra-Low-Loss Polaritons in a van Der Waals Crystal by Intercalation.”
    <i>Nature Materials</i>. Springer Nature, 2020. <a href="https://doi.org/10.1038/s41563-020-0665-0">https://doi.org/10.1038/s41563-020-0665-0</a>.
  ieee: J. Taboada-Gutiérrez <i>et al.</i>, “Broad spectral tuning of ultra-low-loss
    polaritons in a van der Waals crystal by intercalation,” <i>Nature Materials</i>,
    vol. 19. Springer Nature, pp. 964–968, 2020.
  ista: Taboada-Gutiérrez J, Álvarez-Pérez G, Duan J, Ma W, Crowley K, Prieto Gonzalez
    I, Bylinkin A, Autore M, Volkova H, Kimura K, Kimura T, Berger MH, Li S, Bao Q,
    Gao XPA, Errea I, Nikitin AY, Hillenbrand R, Martín-Sánchez J, Alonso-González
    P. 2020. Broad spectral tuning of ultra-low-loss polaritons in a van der Waals
    crystal by intercalation. Nature Materials. 19, 964–968.
  mla: Taboada-Gutiérrez, Javier, et al. “Broad Spectral Tuning of Ultra-Low-Loss
    Polaritons in a van Der Waals Crystal by Intercalation.” <i>Nature Materials</i>,
    vol. 19, Springer Nature, 2020, pp. 964–968, doi:<a href="https://doi.org/10.1038/s41563-020-0665-0">10.1038/s41563-020-0665-0</a>.
  short: J. Taboada-Gutiérrez, G. Álvarez-Pérez, J. Duan, W. Ma, K. Crowley, I. Prieto
    Gonzalez, A. Bylinkin, M. Autore, H. Volkova, K. Kimura, T. Kimura, M.H. Berger,
    S. Li, Q. Bao, X.P.A. Gao, I. Errea, A.Y. Nikitin, R. Hillenbrand, J. Martín-Sánchez,
    P. Alonso-González, Nature Materials 19 (2020) 964–968.
date_created: 2020-05-03T22:00:49Z
date_published: 2020-09-01T00:00:00Z
date_updated: 2023-08-21T06:18:20Z
day: '01'
department:
- _id: NanoFab
doi: 10.1038/s41563-020-0665-0
external_id:
  isi:
  - '000526218500004'
  pmid:
  - '32284598'
intvolume: '        19'
isi: 1
language:
- iso: eng
month: '09'
oa_version: None
page: 964–968
pmid: 1
publication: Nature Materials
publication_identifier:
  eissn:
  - '14764660'
  issn:
  - '14761122'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Broad spectral tuning of ultra-low-loss polaritons in a van der Waals crystal
  by intercalation
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 19
year: '2020'
...
---
_id: '7875'
abstract:
- lang: eng
  text: 'Cells navigating through complex tissues face a fundamental challenge: while
    multiple protrusions explore different paths, the cell needs to avoid entanglement.
    How a cell surveys and then corrects its own shape is poorly understood. Here,
    we demonstrate that spatially distinct microtubule dynamics regulate amoeboid
    cell migration by locally promoting the retraction of protrusions. In migrating
    dendritic cells, local microtubule depolymerization within protrusions remote
    from the microtubule organizing center triggers actomyosin contractility controlled
    by RhoA and its exchange factor Lfc. Depletion of Lfc leads to aberrant myosin
    localization, thereby causing two effects that rate-limit locomotion: (1) impaired
    cell edge coordination during path finding and (2) defective adhesion resolution.
    Compromised shape control is particularly hindering in geometrically complex microenvironments,
    where it leads to entanglement and ultimately fragmentation of the cell body.
    We thus demonstrate that microtubules can act as a proprioceptive device: they
    sense cell shape and control actomyosin retraction to sustain cellular coherence.'
acknowledged_ssus:
- _id: LifeSc
- _id: Bio
- _id: PreCl
acknowledgement: "The authors thank the Scientific Service Units (Life Sciences, Bioimaging,
  Preclinical) of the Institute of Science and Technology Austria for excellent support.
  This work was funded by the European Research Council (ERC StG 281556 and CoG 724373),
  two grants from the Austrian\r\nScience Fund (FWF; P29911 and DK Nanocell W1250-B20
  to M. Sixt) and by the German Research Foundation (DFG SFB1032 project B09) to O.
  Thorn-Seshold and D. Trauner. J. Renkawitz was supported by ISTFELLOW funding from
  the People Program (Marie Curie Actions) of the European Union’s Seventh Framework
  Programme (FP7/2007-2013) under the Research Executive Agency grant agreement (291734)
  and a European Molecular Biology Organization long-term fellowship (ALTF 1396-2014)
  co-funded by the European Commission (LTFCOFUND2013, GA-2013-609409), E. Kiermaier
  by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s
  Excellence Strategy—EXC 2151—390873048, and H. Hacker by the American Lebanese Syrian
  Associated ¨Charities. K.-D. Fischer was supported by the Analysis, Imaging and
  Modelling of Neuronal and Inflammatory Processes graduate school funded by the Ministry
  of Economics, Science, and Digitisation of the State Saxony-Anhalt and by the European
  Funds for Social and Regional Development."
article_number: e201907154
article_processing_charge: No
article_type: original
author:
- first_name: Aglaja
  full_name: Kopf, Aglaja
  id: 31DAC7B6-F248-11E8-B48F-1D18A9856A87
  last_name: Kopf
  orcid: 0000-0002-2187-6656
- first_name: Jörg
  full_name: Renkawitz, Jörg
  id: 3F0587C8-F248-11E8-B48F-1D18A9856A87
  last_name: Renkawitz
  orcid: 0000-0003-2856-3369
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Irute
  full_name: Girkontaite, Irute
  last_name: Girkontaite
- first_name: Kerry
  full_name: Tedford, Kerry
  last_name: Tedford
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Oliver
  full_name: Thorn-Seshold, Oliver
  last_name: Thorn-Seshold
- first_name: Dirk
  full_name: Trauner, Dirk
  id: E8F27F48-3EBA-11E9-92A1-B709E6697425
  last_name: Trauner
- first_name: Hans
  full_name: Häcker, Hans
  last_name: Häcker
- first_name: Klaus Dieter
  full_name: Fischer, Klaus Dieter
  last_name: Fischer
- first_name: Eva
  full_name: Kiermaier, Eva
  id: 3EB04B78-F248-11E8-B48F-1D18A9856A87
  last_name: Kiermaier
  orcid: 0000-0001-6165-5738
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: Kopf A, Renkawitz J, Hauschild R, et al. Microtubules control cellular shape
    and coherence in amoeboid migrating cells. <i>The Journal of Cell Biology</i>.
    2020;219(6). doi:<a href="https://doi.org/10.1083/jcb.201907154">10.1083/jcb.201907154</a>
  apa: Kopf, A., Renkawitz, J., Hauschild, R., Girkontaite, I., Tedford, K., Merrin,
    J., … Sixt, M. K. (2020). Microtubules control cellular shape and coherence in
    amoeboid migrating cells. <i>The Journal of Cell Biology</i>. Rockefeller University
    Press. <a href="https://doi.org/10.1083/jcb.201907154">https://doi.org/10.1083/jcb.201907154</a>
  chicago: Kopf, Aglaja, Jörg Renkawitz, Robert Hauschild, Irute Girkontaite, Kerry
    Tedford, Jack Merrin, Oliver Thorn-Seshold, et al. “Microtubules Control Cellular
    Shape and Coherence in Amoeboid Migrating Cells.” <i>The Journal of Cell Biology</i>.
    Rockefeller University Press, 2020. <a href="https://doi.org/10.1083/jcb.201907154">https://doi.org/10.1083/jcb.201907154</a>.
  ieee: A. Kopf <i>et al.</i>, “Microtubules control cellular shape and coherence
    in amoeboid migrating cells,” <i>The Journal of Cell Biology</i>, vol. 219, no.
    6. Rockefeller University Press, 2020.
  ista: Kopf A, Renkawitz J, Hauschild R, Girkontaite I, Tedford K, Merrin J, Thorn-Seshold
    O, Trauner D, Häcker H, Fischer KD, Kiermaier E, Sixt MK. 2020. Microtubules control
    cellular shape and coherence in amoeboid migrating cells. The Journal of Cell
    Biology. 219(6), e201907154.
  mla: Kopf, Aglaja, et al. “Microtubules Control Cellular Shape and Coherence in
    Amoeboid Migrating Cells.” <i>The Journal of Cell Biology</i>, vol. 219, no. 6,
    e201907154, Rockefeller University Press, 2020, doi:<a href="https://doi.org/10.1083/jcb.201907154">10.1083/jcb.201907154</a>.
  short: A. Kopf, J. Renkawitz, R. Hauschild, I. Girkontaite, K. Tedford, J. Merrin,
    O. Thorn-Seshold, D. Trauner, H. Häcker, K.D. Fischer, E. Kiermaier, M.K. Sixt,
    The Journal of Cell Biology 219 (2020).
date_created: 2020-05-24T22:00:56Z
date_published: 2020-06-01T00:00:00Z
date_updated: 2023-08-21T06:28:17Z
day: '01'
ddc:
- '570'
department:
- _id: MiSi
- _id: Bio
- _id: NanoFab
doi: 10.1083/jcb.201907154
ec_funded: 1
external_id:
  isi:
  - '000538141100020'
  pmid:
  - '32379884'
file:
- access_level: open_access
  checksum: cb0b9c77842ae1214caade7b77e4d82d
  content_type: application/pdf
  creator: dernst
  date_created: 2020-11-24T13:25:13Z
  date_updated: 2020-11-24T13:25:13Z
  file_id: '8801'
  file_name: 2020_JCellBiol_Kopf.pdf
  file_size: 7536712
  relation: main_file
  success: 1
file_date_updated: 2020-11-24T13:25:13Z
has_accepted_license: '1'
intvolume: '       219'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '724373'
  name: Cellular navigation along spatial gradients
- _id: 26018E70-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P29911
  name: Mechanical adaptation of lamellipodial actin
- _id: 252C3B08-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W 1250-B20
  name: Nano-Analytics of Cellular Systems
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
- _id: 25A48D24-B435-11E9-9278-68D0E5697425
  grant_number: ALTF 1396-2014
  name: Molecular and system level view of immune cell migration
publication: The Journal of Cell Biology
publication_identifier:
  eissn:
  - 1540-8140
publication_status: published
publisher: Rockefeller University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Microtubules control cellular shape and coherence in amoeboid migrating cells
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 219
year: '2020'
...
---
_id: '7885'
abstract:
- lang: eng
  text: Eukaryotic cells migrate by coupling the intracellular force of the actin
    cytoskeleton to the environment. While force coupling is usually mediated by transmembrane
    adhesion receptors, especially those of the integrin family, amoeboid cells such
    as leukocytes can migrate extremely fast despite very low adhesive forces1. Here
    we show that leukocytes cannot only migrate under low adhesion but can also transmit
    forces in the complete absence of transmembrane force coupling. When confined
    within three-dimensional environments, they use the topographical features of
    the substrate to propel themselves. Here the retrograde flow of the actin cytoskeleton
    follows the texture of the substrate, creating retrograde shear forces that are
    sufficient to drive the cell body forwards. Notably, adhesion-dependent and adhesion-independent
    migration are not mutually exclusive, but rather are variants of the same principle
    of coupling retrograde actin flow to the environment and thus can potentially
    operate interchangeably and simultaneously. As adhesion-free migration is independent
    of the chemical composition of the environment, it renders cells completely autonomous
    in their locomotive behaviour.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: M-Shop
acknowledgement: We thank A. Leithner and J. Renkawitz for discussion and critical
  reading of the manuscript; J. Schwarz and M. Mehling for establishing the microfluidic
  setups; the Bioimaging Facility of IST Austria for excellent support, as well as
  the Life Science Facility and the Miba Machine Shop of IST Austria; and F. N. Arslan,
  L. E. Burnett and L. Li for their work during their rotation in the IST PhD programme.
  This work was supported by the European Research Council (ERC StG 281556 and CoG
  724373) to M.S. and grants from the Austrian Science Fund (FWF P29911) and the WWTF
  to M.S. M.H. was supported by the European Regional Development Fund Project (CZ.02.1.01/0.0/0.0/15_003/0000476).
  F.G. received funding from the European Union’s Horizon 2020 research and innovation
  programme under the Marie Skłodowska-Curie grant agreement no. 747687.
article_processing_charge: No
article_type: original
author:
- first_name: Anne
  full_name: Reversat, Anne
  id: 35B76592-F248-11E8-B48F-1D18A9856A87
  last_name: Reversat
  orcid: 0000-0003-0666-8928
- first_name: Florian R
  full_name: Gärtner, Florian R
  id: 397A88EE-F248-11E8-B48F-1D18A9856A87
  last_name: Gärtner
  orcid: 0000-0001-6120-3723
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Julian A
  full_name: Stopp, Julian A
  id: 489E3F00-F248-11E8-B48F-1D18A9856A87
  last_name: Stopp
- first_name: Saren
  full_name: Tasciyan, Saren
  id: 4323B49C-F248-11E8-B48F-1D18A9856A87
  last_name: Tasciyan
  orcid: 0000-0003-1671-393X
- first_name: Juan L
  full_name: Aguilera Servin, Juan L
  id: 2A67C376-F248-11E8-B48F-1D18A9856A87
  last_name: Aguilera Servin
  orcid: 0000-0002-2862-8372
- first_name: Ingrid
  full_name: De Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: De Vries
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Miroslav
  full_name: Hons, Miroslav
  id: 4167FE56-F248-11E8-B48F-1D18A9856A87
  last_name: Hons
  orcid: 0000-0002-6625-3348
- first_name: Matthieu
  full_name: Piel, Matthieu
  last_name: Piel
- first_name: Andrew
  full_name: Callan-Jones, Andrew
  last_name: Callan-Jones
- first_name: Raphael
  full_name: Voituriez, Raphael
  last_name: Voituriez
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: Reversat A, Gärtner FR, Merrin J, et al. Cellular locomotion using environmental
    topography. <i>Nature</i>. 2020;582:582–585. doi:<a href="https://doi.org/10.1038/s41586-020-2283-z">10.1038/s41586-020-2283-z</a>
  apa: Reversat, A., Gärtner, F. R., Merrin, J., Stopp, J. A., Tasciyan, S., Aguilera
    Servin, J. L., … Sixt, M. K. (2020). Cellular locomotion using environmental topography.
    <i>Nature</i>. Springer Nature. <a href="https://doi.org/10.1038/s41586-020-2283-z">https://doi.org/10.1038/s41586-020-2283-z</a>
  chicago: Reversat, Anne, Florian R Gärtner, Jack Merrin, Julian A Stopp, Saren Tasciyan,
    Juan L Aguilera Servin, Ingrid de Vries, et al. “Cellular Locomotion Using Environmental
    Topography.” <i>Nature</i>. Springer Nature, 2020. <a href="https://doi.org/10.1038/s41586-020-2283-z">https://doi.org/10.1038/s41586-020-2283-z</a>.
  ieee: A. Reversat <i>et al.</i>, “Cellular locomotion using environmental topography,”
    <i>Nature</i>, vol. 582. Springer Nature, pp. 582–585, 2020.
  ista: Reversat A, Gärtner FR, Merrin J, Stopp JA, Tasciyan S, Aguilera Servin JL,
    de Vries I, Hauschild R, Hons M, Piel M, Callan-Jones A, Voituriez R, Sixt MK.
    2020. Cellular locomotion using environmental topography. Nature. 582, 582–585.
  mla: Reversat, Anne, et al. “Cellular Locomotion Using Environmental Topography.”
    <i>Nature</i>, vol. 582, Springer Nature, 2020, pp. 582–585, doi:<a href="https://doi.org/10.1038/s41586-020-2283-z">10.1038/s41586-020-2283-z</a>.
  short: A. Reversat, F.R. Gärtner, J. Merrin, J.A. Stopp, S. Tasciyan, J.L. Aguilera
    Servin, I. de Vries, R. Hauschild, M. Hons, M. Piel, A. Callan-Jones, R. Voituriez,
    M.K. Sixt, Nature 582 (2020) 582–585.
date_created: 2020-05-24T22:01:01Z
date_published: 2020-06-25T00:00:00Z
date_updated: 2024-03-25T23:30:12Z
day: '25'
department:
- _id: NanoFab
- _id: Bio
- _id: MiSi
doi: 10.1038/s41586-020-2283-z
ec_funded: 1
external_id:
  isi:
  - '000532688300008'
intvolume: '       582'
isi: 1
language:
- iso: eng
month: '06'
oa_version: None
page: 582–585
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '724373'
  name: Cellular navigation along spatial gradients
- _id: 26018E70-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P29911
  name: Mechanical adaptation of lamellipodial actin
- _id: 260AA4E2-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '747687'
  name: Mechanical Adaptation of Lamellipodial Actin Networks in Migrating Cells
publication: Nature
publication_identifier:
  eissn:
  - '14764687'
  issn:
  - '00280836'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/off-road-mode-enables-mobile-cells-to-move-freely/
  record:
  - id: '14697'
    relation: dissertation_contains
    status: public
  - id: '12401'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Cellular locomotion using environmental topography
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 582
year: '2020'
...
---
_id: '8597'
abstract:
- lang: eng
  text: Error analysis and data visualization of positive COVID-19 cases in 27 countries
    have been performed up to August 8, 2020. This survey generally observes a progression
    from early exponential growth transitioning to an intermediate power-law growth
    phase, as recently suggested by Ziff and Ziff. The occurrence of logistic growth
    after the power-law phase with lockdowns or social distancing may be described
    as an effect of avoidance. A visualization of the power-law growth exponent over
    short time windows is qualitatively similar to the Bhatia visualization for pandemic
    progression. Visualizations like these can indicate the onset of second waves
    and may influence social policy.
acknowledgement: I would especially like to thank Michael Sixt for encouraging me
  to think about these problems while working at home due to restrictions in place.
  I want to thank Nick Barton, Katka Bodova, Matthew Robinson, Simon Rella, Federico
  Sau, Ivan Prieto, and Pradeep Kumar for useful discussions.
article_number: '065005'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
citation:
  ama: Merrin J. Differences in power law growth over time and indicators of COVID-19
    pandemic progression worldwide. <i>Physical Biology</i>. 2020;17(6). doi:<a href="https://doi.org/10.1088/1478-3975/abb2db">10.1088/1478-3975/abb2db</a>
  apa: Merrin, J. (2020). Differences in power law growth over time and indicators
    of COVID-19 pandemic progression worldwide. <i>Physical Biology</i>. IOP Publishing.
    <a href="https://doi.org/10.1088/1478-3975/abb2db">https://doi.org/10.1088/1478-3975/abb2db</a>
  chicago: Merrin, Jack. “Differences in Power Law Growth over Time and Indicators
    of COVID-19 Pandemic Progression Worldwide.” <i>Physical Biology</i>. IOP Publishing,
    2020. <a href="https://doi.org/10.1088/1478-3975/abb2db">https://doi.org/10.1088/1478-3975/abb2db</a>.
  ieee: J. Merrin, “Differences in power law growth over time and indicators of COVID-19
    pandemic progression worldwide,” <i>Physical Biology</i>, vol. 17, no. 6. IOP
    Publishing, 2020.
  ista: Merrin J. 2020. Differences in power law growth over time and indicators of
    COVID-19 pandemic progression worldwide. Physical Biology. 17(6), 065005.
  mla: Merrin, Jack. “Differences in Power Law Growth over Time and Indicators of
    COVID-19 Pandemic Progression Worldwide.” <i>Physical Biology</i>, vol. 17, no.
    6, 065005, IOP Publishing, 2020, doi:<a href="https://doi.org/10.1088/1478-3975/abb2db">10.1088/1478-3975/abb2db</a>.
  short: J. Merrin, Physical Biology 17 (2020).
date_created: 2020-10-04T22:01:35Z
date_published: 2020-09-23T00:00:00Z
date_updated: 2023-08-22T09:53:29Z
day: '23'
ddc:
- '510'
- '570'
department:
- _id: NanoFab
doi: 10.1088/1478-3975/abb2db
external_id:
  isi:
  - '000575539700001'
file:
- access_level: open_access
  checksum: fec9bdd355ed349f09990faab20838a7
  content_type: application/pdf
  creator: dernst
  date_created: 2020-10-05T13:53:59Z
  date_updated: 2020-10-05T13:53:59Z
  file_id: '8609'
  file_name: 2020_PhysBio_Merrin.pdf
  file_size: 1667111
  relation: main_file
  success: 1
file_date_updated: 2020-10-05T13:53:59Z
has_accepted_license: '1'
intvolume: '        17'
isi: 1
issue: '6'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
publication: Physical Biology
publication_identifier:
  eissn:
  - '14783975'
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Differences in power law growth over time and indicators of COVID-19 pandemic
  progression worldwide
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 17
year: '2020'
...
---
_id: '7225'
abstract:
- lang: eng
  text: "This is a literature teaching resource review for biologically inspired microfluidics
    courses\r\nor exploring the diverse applications of microfluidics. The structure
    is around key papers and model\r\norganisms. While courses gradually change over
    time, a focus remains on understanding how\r\nmicrofluidics has developed as well
    as what it can and cannot do for researchers. As a primary\r\nstarting point,
    we cover micro-fluid mechanics principles and microfabrication of devices. A variety\r\nof
    applications are discussed using model prokaryotic and eukaryotic organisms from
    the set\r\nof bacteria (Escherichia coli), trypanosomes (Trypanosoma brucei),
    yeast (Saccharomyces cerevisiae),\r\nslime molds (Physarum polycephalum), worms
    (Caenorhabditis elegans), flies (Drosophila melangoster),\r\nplants (Arabidopsis
    thaliana), and mouse immune cells (Mus musculus). Other engineering and\r\nbiochemical
    methods discussed include biomimetics, organ on a chip, inkjet, droplet microfluidics,\r\nbiotic
    games, and diagnostics. While we have not yet reached the end-all lab on a chip,\r\nmicrofluidics
    can still be used effectively for specific applications."
article_number: '109'
article_processing_charge: Yes
article_type: review
author:
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
citation:
  ama: Merrin J. Frontiers in microfluidics, a teaching resource review. <i>Bioengineering</i>.
    2019;6(4). doi:<a href="https://doi.org/10.3390/bioengineering6040109">10.3390/bioengineering6040109</a>
  apa: Merrin, J. (2019). Frontiers in microfluidics, a teaching resource review.
    <i>Bioengineering</i>. MDPI. <a href="https://doi.org/10.3390/bioengineering6040109">https://doi.org/10.3390/bioengineering6040109</a>
  chicago: Merrin, Jack. “Frontiers in Microfluidics, a Teaching Resource Review.”
    <i>Bioengineering</i>. MDPI, 2019. <a href="https://doi.org/10.3390/bioengineering6040109">https://doi.org/10.3390/bioengineering6040109</a>.
  ieee: J. Merrin, “Frontiers in microfluidics, a teaching resource review,” <i>Bioengineering</i>,
    vol. 6, no. 4. MDPI, 2019.
  ista: Merrin J. 2019. Frontiers in microfluidics, a teaching resource review. Bioengineering.
    6(4), 109.
  mla: Merrin, Jack. “Frontiers in Microfluidics, a Teaching Resource Review.” <i>Bioengineering</i>,
    vol. 6, no. 4, 109, MDPI, 2019, doi:<a href="https://doi.org/10.3390/bioengineering6040109">10.3390/bioengineering6040109</a>.
  short: J. Merrin, Bioengineering 6 (2019).
date_created: 2020-01-05T23:00:45Z
date_published: 2019-12-03T00:00:00Z
date_updated: 2023-09-06T14:52:49Z
day: '03'
ddc:
- '620'
department:
- _id: NanoFab
doi: 10.3390/bioengineering6040109
external_id:
  isi:
  - '000505590000024'
  pmid:
  - '31816954'
file:
- access_level: open_access
  checksum: 80f1499e2a4caccdf3aa54b137fd99a0
  content_type: application/pdf
  creator: dernst
  date_created: 2020-01-07T14:49:59Z
  date_updated: 2020-07-14T12:47:54Z
  file_id: '7243'
  file_name: 2019_Bioengineering_Merrin.pdf
  file_size: 2660780
  relation: main_file
file_date_updated: 2020-07-14T12:47:54Z
has_accepted_license: '1'
intvolume: '         6'
isi: 1
issue: '4'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
pmid: 1
publication: Bioengineering
publication_identifier:
  eissn:
  - '23065354'
publication_status: published
publisher: MDPI
quality_controlled: '1'
scopus_import: '1'
status: public
title: Frontiers in microfluidics, a teaching resource review
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 6
year: '2019'
...
---
_id: '6328'
abstract:
- lang: eng
  text: During metazoan development, immune surveillance and cancer dissemination,
    cells migrate in complex three-dimensional microenvironments1,2,3. These spaces
    are crowded by cells and extracellular matrix, generating mazes with differently
    sized gaps that are typically smaller than the diameter of the migrating cell4,5.
    Most mesenchymal and epithelial cells and some—but not all—cancer cells actively
    generate their migratory path using pericellular tissue proteolysis6. By contrast,
    amoeboid cells such as leukocytes use non-destructive strategies of locomotion7,
    raising the question how these extremely fast cells navigate through dense tissues.
    Here we reveal that leukocytes sample their immediate vicinity for large pore
    sizes, and are thereby able to choose the path of least resistance. This allows
    them to circumnavigate local obstacles while effectively following global directional
    cues such as chemotactic gradients. Pore-size discrimination is facilitated by
    frontward positioning of the nucleus, which enables the cells to use their bulkiest
    compartment as a mechanical gauge. Once the nucleus and the closely associated
    microtubule organizing centre pass the largest pore, cytoplasmic protrusions still
    lingering in smaller pores are retracted. These retractions are coordinated by
    dynamic microtubules; when microtubules are disrupted, migrating cells lose coherence
    and frequently fragment into migratory cytoplasmic pieces. As nuclear positioning
    in front of the microtubule organizing centre is a typical feature of amoeboid
    migration, our findings link the fundamental organization of cellular polarity
    to the strategy of locomotion.
acknowledged_ssus:
- _id: SSU
article_processing_charge: No
article_type: letter_note
author:
- first_name: Jörg
  full_name: Renkawitz, Jörg
  id: 3F0587C8-F248-11E8-B48F-1D18A9856A87
  last_name: Renkawitz
  orcid: 0000-0003-2856-3369
- first_name: Aglaja
  full_name: Kopf, Aglaja
  id: 31DAC7B6-F248-11E8-B48F-1D18A9856A87
  last_name: Kopf
  orcid: 0000-0002-2187-6656
- first_name: Julian A
  full_name: Stopp, Julian A
  id: 489E3F00-F248-11E8-B48F-1D18A9856A87
  last_name: Stopp
- first_name: Ingrid
  full_name: de Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: de Vries
- first_name: Meghan K.
  full_name: Driscoll, Meghan K.
  last_name: Driscoll
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Erik S.
  full_name: Welf, Erik S.
  last_name: Welf
- first_name: Gaudenz
  full_name: Danuser, Gaudenz
  last_name: Danuser
- first_name: Reto
  full_name: Fiolka, Reto
  last_name: Fiolka
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: Renkawitz J, Kopf A, Stopp JA, et al. Nuclear positioning facilitates amoeboid
    migration along the path of least resistance. <i>Nature</i>. 2019;568:546-550.
    doi:<a href="https://doi.org/10.1038/s41586-019-1087-5">10.1038/s41586-019-1087-5</a>
  apa: Renkawitz, J., Kopf, A., Stopp, J. A., de Vries, I., Driscoll, M. K., Merrin,
    J., … Sixt, M. K. (2019). Nuclear positioning facilitates amoeboid migration along
    the path of least resistance. <i>Nature</i>. Springer Nature. <a href="https://doi.org/10.1038/s41586-019-1087-5">https://doi.org/10.1038/s41586-019-1087-5</a>
  chicago: Renkawitz, Jörg, Aglaja Kopf, Julian A Stopp, Ingrid de Vries, Meghan K.
    Driscoll, Jack Merrin, Robert Hauschild, et al. “Nuclear Positioning Facilitates
    Amoeboid Migration along the Path of Least Resistance.” <i>Nature</i>. Springer
    Nature, 2019. <a href="https://doi.org/10.1038/s41586-019-1087-5">https://doi.org/10.1038/s41586-019-1087-5</a>.
  ieee: J. Renkawitz <i>et al.</i>, “Nuclear positioning facilitates amoeboid migration
    along the path of least resistance,” <i>Nature</i>, vol. 568. Springer Nature,
    pp. 546–550, 2019.
  ista: Renkawitz J, Kopf A, Stopp JA, de Vries I, Driscoll MK, Merrin J, Hauschild
    R, Welf ES, Danuser G, Fiolka R, Sixt MK. 2019. Nuclear positioning facilitates
    amoeboid migration along the path of least resistance. Nature. 568, 546–550.
  mla: Renkawitz, Jörg, et al. “Nuclear Positioning Facilitates Amoeboid Migration
    along the Path of Least Resistance.” <i>Nature</i>, vol. 568, Springer Nature,
    2019, pp. 546–50, doi:<a href="https://doi.org/10.1038/s41586-019-1087-5">10.1038/s41586-019-1087-5</a>.
  short: J. Renkawitz, A. Kopf, J.A. Stopp, I. de Vries, M.K. Driscoll, J. Merrin,
    R. Hauschild, E.S. Welf, G. Danuser, R. Fiolka, M.K. Sixt, Nature 568 (2019) 546–550.
date_created: 2019-04-17T06:52:28Z
date_published: 2019-04-25T00:00:00Z
date_updated: 2024-03-25T23:30:22Z
day: '25'
department:
- _id: MiSi
- _id: NanoFab
- _id: Bio
doi: 10.1038/s41586-019-1087-5
ec_funded: 1
external_id:
  isi:
  - '000465594200050'
  pmid:
  - '30944468'
intvolume: '       568'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7217284/
month: '04'
oa: 1
oa_version: Submitted Version
page: 546-550
pmid: 1
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
    (EU)
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '724373'
  name: Cellular navigation along spatial gradients
- _id: 265FAEBA-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W01250-B20
  name: Nano-Analytics of Cellular Systems
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
- _id: 25A48D24-B435-11E9-9278-68D0E5697425
  grant_number: ALTF 1396-2014
  name: Molecular and system level view of immune cell migration
publication: Nature
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/leukocytes-use-their-nucleus-as-a-ruler-to-choose-path-of-least-resistance/
  record:
  - id: '14697'
    relation: dissertation_contains
    status: public
  - id: '6891'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Nuclear positioning facilitates amoeboid migration along the path of least
  resistance
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 568
year: '2019'
...
---
_id: '192'
abstract:
- lang: eng
  text: The phytohormone auxin is the information carrier in a plethora of developmental
    and physiological processes in plants(1). It has been firmly established that
    canonical, nuclear auxin signalling acts through regulation of gene transcription(2).
    Here, we combined microfluidics, live imaging, genetic engineering and computational
    modelling to reanalyse the classical case of root growth inhibition(3) by auxin.
    We show that Arabidopsis roots react to addition and removal of auxin by extremely
    rapid adaptation of growth rate. This process requires intracellular auxin perception
    but not transcriptional reprogramming. The formation of the canonical TIR1/AFB-Aux/IAA
    co-receptor complex is required for the growth regulation, hinting to a novel,
    non-transcriptional branch of this signalling pathway. Our results challenge the
    current understanding of root growth regulation by auxin and suggest another,
    presumably non-transcriptional, signalling output of the canonical auxin pathway.
article_processing_charge: No
article_type: original
author:
- first_name: Matyas
  full_name: Fendrych, Matyas
  id: 43905548-F248-11E8-B48F-1D18A9856A87
  last_name: Fendrych
  orcid: 0000-0002-9767-8699
- first_name: Maria
  full_name: Akhmanova, Maria
  id: 3425EC26-F248-11E8-B48F-1D18A9856A87
  last_name: Akhmanova
  orcid: 0000-0003-1522-3162
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Matous
  full_name: Glanc, Matous
  last_name: Glanc
- first_name: Shinya
  full_name: Hagihara, Shinya
  last_name: Hagihara
- first_name: Koji
  full_name: Takahashi, Koji
  last_name: Takahashi
- first_name: Naoyuki
  full_name: Uchida, Naoyuki
  last_name: Uchida
- first_name: Keiko U
  full_name: Torii, Keiko U
  last_name: Torii
- first_name: Jirí
  full_name: Friml, Jirí
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Fendrych M, Akhmanova M, Merrin J, et al. Rapid and reversible root growth
    inhibition by TIR1 auxin signalling. <i>Nature Plants</i>. 2018;4(7):453-459.
    doi:<a href="https://doi.org/10.1038/s41477-018-0190-1">10.1038/s41477-018-0190-1</a>
  apa: Fendrych, M., Akhmanova, M., Merrin, J., Glanc, M., Hagihara, S., Takahashi,
    K., … Friml, J. (2018). Rapid and reversible root growth inhibition by TIR1 auxin
    signalling. <i>Nature Plants</i>. Springer Nature. <a href="https://doi.org/10.1038/s41477-018-0190-1">https://doi.org/10.1038/s41477-018-0190-1</a>
  chicago: Fendrych, Matyas, Maria Akhmanova, Jack Merrin, Matous Glanc, Shinya Hagihara,
    Koji Takahashi, Naoyuki Uchida, Keiko U Torii, and Jiří Friml. “Rapid and Reversible
    Root Growth Inhibition by TIR1 Auxin Signalling.” <i>Nature Plants</i>. Springer
    Nature, 2018. <a href="https://doi.org/10.1038/s41477-018-0190-1">https://doi.org/10.1038/s41477-018-0190-1</a>.
  ieee: M. Fendrych <i>et al.</i>, “Rapid and reversible root growth inhibition by
    TIR1 auxin signalling,” <i>Nature Plants</i>, vol. 4, no. 7. Springer Nature,
    pp. 453–459, 2018.
  ista: Fendrych M, Akhmanova M, Merrin J, Glanc M, Hagihara S, Takahashi K, Uchida
    N, Torii KU, Friml J. 2018. Rapid and reversible root growth inhibition by TIR1
    auxin signalling. Nature Plants. 4(7), 453–459.
  mla: Fendrych, Matyas, et al. “Rapid and Reversible Root Growth Inhibition by TIR1
    Auxin Signalling.” <i>Nature Plants</i>, vol. 4, no. 7, Springer Nature, 2018,
    pp. 453–59, doi:<a href="https://doi.org/10.1038/s41477-018-0190-1">10.1038/s41477-018-0190-1</a>.
  short: M. Fendrych, M. Akhmanova, J. Merrin, M. Glanc, S. Hagihara, K. Takahashi,
    N. Uchida, K.U. Torii, J. Friml, Nature Plants 4 (2018) 453–459.
date_created: 2018-12-11T11:45:07Z
date_published: 2018-06-25T00:00:00Z
date_updated: 2023-09-15T12:11:03Z
day: '25'
department:
- _id: JiFr
- _id: DaSi
- _id: NanoFab
doi: 10.1038/s41477-018-0190-1
external_id:
  isi:
  - '000443221200017'
  pmid:
  - '29942048'
intvolume: '         4'
isi: 1
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pubmed/29942048
month: '06'
oa: 1
oa_version: Submitted Version
page: 453 - 459
pmid: 1
publication: Nature Plants
publication_status: published
publisher: Springer Nature
publist_id: '7728'
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/new-mechanism-for-the-plant-hormone-auxin-discovered/
scopus_import: '1'
status: public
title: Rapid and reversible root growth inhibition by TIR1 auxin signalling
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 4
year: '2018'
...
---
_id: '153'
abstract:
- lang: eng
  text: Cells migrating in multicellular organisms steadily traverse complex three-dimensional
    (3D) environments. To decipher the underlying cell biology, current experimental
    setups either use simplified 2D, tissue-mimetic 3D (e.g., collagen matrices) or
    in vivo environments. While only in vivo experiments are truly physiological,
    they do not allow for precise manipulation of environmental parameters. 2D in
    vitro experiments do allow mechanical and chemical manipulations, but increasing
    evidence demonstrates substantial differences of migratory mechanisms in 2D and
    3D. Here, we describe simple, robust, and versatile “pillar forests” to investigate
    cell migration in complex but fully controllable 3D environments. Pillar forests
    are polydimethylsiloxane-based setups, in which two closely adjacent surfaces
    are interconnected by arrays of micrometer-sized pillars. Changing the pillar
    shape, size, height and the inter-pillar distance precisely manipulates microenvironmental
    parameters (e.g., pore sizes, micro-geometry, micro-topology), while being easily
    combined with chemotactic cues, surface coatings, diverse cell types and advanced
    imaging techniques. Thus, pillar forests combine the advantages of 2D cell migration
    assays with the precise definition of 3D environmental parameters.
article_processing_charge: No
author:
- first_name: Jörg
  full_name: Renkawitz, Jörg
  id: 3F0587C8-F248-11E8-B48F-1D18A9856A87
  last_name: Renkawitz
  orcid: 0000-0003-2856-3369
- first_name: Anne
  full_name: Reversat, Anne
  id: 35B76592-F248-11E8-B48F-1D18A9856A87
  last_name: Reversat
  orcid: 0000-0003-0666-8928
- first_name: Alexander F
  full_name: Leithner, Alexander F
  id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
  last_name: Leithner
  orcid: 0000-0002-1073-744X
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: 'Renkawitz J, Reversat A, Leithner AF, Merrin J, Sixt MK. Micro-engineered
    “pillar forests” to study cell migration in complex but controlled 3D environments.
    In: <i>Methods in Cell Biology</i>. Vol 147. Academic Press; 2018:79-91. doi:<a
    href="https://doi.org/10.1016/bs.mcb.2018.07.004">10.1016/bs.mcb.2018.07.004</a>'
  apa: Renkawitz, J., Reversat, A., Leithner, A. F., Merrin, J., &#38; Sixt, M. K.
    (2018). Micro-engineered “pillar forests” to study cell migration in complex but
    controlled 3D environments. In <i>Methods in Cell Biology</i> (Vol. 147, pp. 79–91).
    Academic Press. <a href="https://doi.org/10.1016/bs.mcb.2018.07.004">https://doi.org/10.1016/bs.mcb.2018.07.004</a>
  chicago: Renkawitz, Jörg, Anne Reversat, Alexander F Leithner, Jack Merrin, and
    Michael K Sixt. “Micro-Engineered ‘Pillar Forests’ to Study Cell Migration in
    Complex but Controlled 3D Environments.” In <i>Methods in Cell Biology</i>, 147:79–91.
    Academic Press, 2018. <a href="https://doi.org/10.1016/bs.mcb.2018.07.004">https://doi.org/10.1016/bs.mcb.2018.07.004</a>.
  ieee: J. Renkawitz, A. Reversat, A. F. Leithner, J. Merrin, and M. K. Sixt, “Micro-engineered
    ‘pillar forests’ to study cell migration in complex but controlled 3D environments,”
    in <i>Methods in Cell Biology</i>, vol. 147, Academic Press, 2018, pp. 79–91.
  ista: 'Renkawitz J, Reversat A, Leithner AF, Merrin J, Sixt MK. 2018.Micro-engineered
    “pillar forests” to study cell migration in complex but controlled 3D environments.
    In: Methods in Cell Biology. vol. 147, 79–91.'
  mla: Renkawitz, Jörg, et al. “Micro-Engineered ‘Pillar Forests’ to Study Cell Migration
    in Complex but Controlled 3D Environments.” <i>Methods in Cell Biology</i>, vol.
    147, Academic Press, 2018, pp. 79–91, doi:<a href="https://doi.org/10.1016/bs.mcb.2018.07.004">10.1016/bs.mcb.2018.07.004</a>.
  short: J. Renkawitz, A. Reversat, A.F. Leithner, J. Merrin, M.K. Sixt, in:, Methods
    in Cell Biology, Academic Press, 2018, pp. 79–91.
date_created: 2018-12-11T11:44:54Z
date_published: 2018-07-27T00:00:00Z
date_updated: 2023-09-13T08:56:35Z
day: '27'
department:
- _id: MiSi
- _id: NanoFab
doi: 10.1016/bs.mcb.2018.07.004
external_id:
  isi:
  - '000452412300006'
  pmid:
  - '30165964'
intvolume: '       147'
isi: 1
language:
- iso: eng
month: '07'
oa_version: None
page: 79 - 91
pmid: 1
publication: Methods in Cell Biology
publication_identifier:
  issn:
  - 0091679X
publication_status: published
publisher: Academic Press
publist_id: '7768'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Micro-engineered “pillar forests” to study cell migration in complex but controlled
  3D environments
type: book_chapter
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 147
year: '2018'
...
---
_id: '674'
abstract:
- lang: eng
  text: Navigation of cells along gradients of guidance cues is a determining step
    in many developmental and immunological processes. Gradients can either be soluble
    or immobilized to tissues as demonstrated for the haptotactic migration of dendritic
    cells (DCs) toward higher concentrations of immobilized chemokine CCL21. To elucidate
    how gradient characteristics govern cellular response patterns, we here introduce
    an in vitro system allowing to track migratory responses of DCs to precisely controlled
    immobilized gradients of CCL21. We find that haptotactic sensing depends on the
    absolute CCL21 concentration and local steepness of the gradient, consistent with
    a scenario where DC directionality is governed by the signal-to-noise ratio of
    CCL21 binding to the receptor CCR7. We find that the conditions for optimal DC
    guidance are perfectly provided by the CCL21 gradients we measure in vivo. Furthermore,
    we find that CCR7 signal termination by the G-protein-coupled receptor kinase
    6 (GRK6) is crucial for haptotactic but dispensable for chemotactic CCL21 gradient
    sensing in vitro and confirm those observations in vivo. These findings suggest
    that stable, tissue-bound CCL21 gradients as sustainable “roads” ensure optimal
    guidance in vivo.
author:
- first_name: Jan
  full_name: Schwarz, Jan
  id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
  last_name: Schwarz
- first_name: Veronika
  full_name: Bierbaum, Veronika
  id: 3FD04378-F248-11E8-B48F-1D18A9856A87
  last_name: Bierbaum
- first_name: Kari
  full_name: Vaahtomeri, Kari
  id: 368EE576-F248-11E8-B48F-1D18A9856A87
  last_name: Vaahtomeri
  orcid: 0000-0001-7829-3518
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Markus
  full_name: Brown, Markus
  id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87
  last_name: Brown
- first_name: Ingrid
  full_name: De Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: De Vries
- first_name: Alexander F
  full_name: Leithner, Alexander F
  id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
  last_name: Leithner
- first_name: Anne
  full_name: Reversat, Anne
  id: 35B76592-F248-11E8-B48F-1D18A9856A87
  last_name: Reversat
  orcid: 0000-0003-0666-8928
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Teresa
  full_name: Tarrant, Teresa
  last_name: Tarrant
- first_name: Tobias
  full_name: Bollenbach, Tobias
  id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
  last_name: Bollenbach
  orcid: 0000-0003-4398-476X
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: Schwarz J, Bierbaum V, Vaahtomeri K, et al. Dendritic cells interpret haptotactic
    chemokine gradients in a manner governed by signal to noise ratio and dependent
    on GRK6. <i>Current Biology</i>. 2017;27(9):1314-1325. doi:<a href="https://doi.org/10.1016/j.cub.2017.04.004">10.1016/j.cub.2017.04.004</a>
  apa: Schwarz, J., Bierbaum, V., Vaahtomeri, K., Hauschild, R., Brown, M., de Vries,
    I., … Sixt, M. K. (2017). Dendritic cells interpret haptotactic chemokine gradients
    in a manner governed by signal to noise ratio and dependent on GRK6. <i>Current
    Biology</i>. Cell Press. <a href="https://doi.org/10.1016/j.cub.2017.04.004">https://doi.org/10.1016/j.cub.2017.04.004</a>
  chicago: Schwarz, Jan, Veronika Bierbaum, Kari Vaahtomeri, Robert Hauschild, Markus
    Brown, Ingrid de Vries, Alexander F Leithner, et al. “Dendritic Cells Interpret
    Haptotactic Chemokine Gradients in a Manner Governed by Signal to Noise Ratio
    and Dependent on GRK6.” <i>Current Biology</i>. Cell Press, 2017. <a href="https://doi.org/10.1016/j.cub.2017.04.004">https://doi.org/10.1016/j.cub.2017.04.004</a>.
  ieee: J. Schwarz <i>et al.</i>, “Dendritic cells interpret haptotactic chemokine
    gradients in a manner governed by signal to noise ratio and dependent on GRK6,”
    <i>Current Biology</i>, vol. 27, no. 9. Cell Press, pp. 1314–1325, 2017.
  ista: Schwarz J, Bierbaum V, Vaahtomeri K, Hauschild R, Brown M, de Vries I, Leithner
    AF, Reversat A, Merrin J, Tarrant T, Bollenbach MT, Sixt MK. 2017. Dendritic cells
    interpret haptotactic chemokine gradients in a manner governed by signal to noise
    ratio and dependent on GRK6. Current Biology. 27(9), 1314–1325.
  mla: Schwarz, Jan, et al. “Dendritic Cells Interpret Haptotactic Chemokine Gradients
    in a Manner Governed by Signal to Noise Ratio and Dependent on GRK6.” <i>Current
    Biology</i>, vol. 27, no. 9, Cell Press, 2017, pp. 1314–25, doi:<a href="https://doi.org/10.1016/j.cub.2017.04.004">10.1016/j.cub.2017.04.004</a>.
  short: J. Schwarz, V. Bierbaum, K. Vaahtomeri, R. Hauschild, M. Brown, I. de Vries,
    A.F. Leithner, A. Reversat, J. Merrin, T. Tarrant, M.T. Bollenbach, M.K. Sixt,
    Current Biology 27 (2017) 1314–1325.
date_created: 2018-12-11T11:47:51Z
date_published: 2017-05-09T00:00:00Z
date_updated: 2023-02-23T12:50:44Z
day: '09'
department:
- _id: MiSi
- _id: Bio
- _id: NanoFab
doi: 10.1016/j.cub.2017.04.004
ec_funded: 1
intvolume: '        27'
issue: '9'
language:
- iso: eng
month: '05'
oa_version: None
page: 1314 - 1325
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
- _id: 25A8E5EA-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Y 564-B12
  name: Cytoskeletal force generation and transduction of leukocytes (FWF)
publication: Current Biology
publication_identifier:
  issn:
  - '09609822'
publication_status: published
publisher: Cell Press
publist_id: '7050'
quality_controlled: '1'
scopus_import: 1
status: public
title: Dendritic cells interpret haptotactic chemokine gradients in a manner governed
  by signal to noise ratio and dependent on GRK6
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 27
year: '2017'
...
---
_id: '675'
abstract:
- lang: eng
  text: 'We report the enhancement of infrared absorption of chemisorbed carbon monoxide
    on platinum in the gap of plasmonic nanoantennas. Our method is based on the self-assembled
    formation of platinum nanoislands on nanoscopic dipole antenna arrays manufactured
    via electron beam lithography. We employ systematic variations of the plasmonic
    antenna resonance to precisely couple to the molecular stretch vibration of carbon
    monoxide adsorbed on the platinum nanoislands. Ultimately, we reach more than
    1500-fold infrared absorption enhancements, allowing for an ultrasensitive detection
    of a monolayer of chemisorbed carbon monoxide. The developed procedure can be
    adapted to other metal adsorbents and molecular species and could be utilized
    for coverage sensing in surface catalytic reactions. '
article_processing_charge: No
article_type: original
author:
- first_name: Johannes
  full_name: Haase, Johannes
  last_name: Haase
- first_name: Salvatore
  full_name: Bagiante, Salvatore
  id: 38ED402E-F248-11E8-B48F-1D18A9856A87
  last_name: Bagiante
  orcid: 0000-0002-0122-9603
- first_name: Hans
  full_name: Sigg, Hans
  last_name: Sigg
- first_name: Jeroen
  full_name: Van Bokhoven, Jeroen
  last_name: Van Bokhoven
citation:
  ama: Haase J, Bagiante S, Sigg H, Van Bokhoven J. Surface enhanced infrared absorption
    of chemisorbed carbon monoxide using plasmonic nanoantennas. <i>Optics Letters</i>.
    2017;42(10):1931-1934. doi:<a href="https://doi.org/10.1364/OL.42.001931">10.1364/OL.42.001931</a>
  apa: Haase, J., Bagiante, S., Sigg, H., &#38; Van Bokhoven, J. (2017). Surface enhanced
    infrared absorption of chemisorbed carbon monoxide using plasmonic nanoantennas.
    <i>Optics Letters</i>. Optica Publishing Group. <a href="https://doi.org/10.1364/OL.42.001931">https://doi.org/10.1364/OL.42.001931</a>
  chicago: Haase, Johannes, Salvatore Bagiante, Hans Sigg, and Jeroen Van Bokhoven.
    “Surface Enhanced Infrared Absorption of Chemisorbed Carbon Monoxide Using Plasmonic
    Nanoantennas.” <i>Optics Letters</i>. Optica Publishing Group, 2017. <a href="https://doi.org/10.1364/OL.42.001931">https://doi.org/10.1364/OL.42.001931</a>.
  ieee: J. Haase, S. Bagiante, H. Sigg, and J. Van Bokhoven, “Surface enhanced infrared
    absorption of chemisorbed carbon monoxide using plasmonic nanoantennas,” <i>Optics
    Letters</i>, vol. 42, no. 10. Optica Publishing Group, pp. 1931–1934, 2017.
  ista: Haase J, Bagiante S, Sigg H, Van Bokhoven J. 2017. Surface enhanced infrared
    absorption of chemisorbed carbon monoxide using plasmonic nanoantennas. Optics
    Letters. 42(10), 1931–1934.
  mla: Haase, Johannes, et al. “Surface Enhanced Infrared Absorption of Chemisorbed
    Carbon Monoxide Using Plasmonic Nanoantennas.” <i>Optics Letters</i>, vol. 42,
    no. 10, Optica Publishing Group, 2017, pp. 1931–34, doi:<a href="https://doi.org/10.1364/OL.42.001931">10.1364/OL.42.001931</a>.
  short: J. Haase, S. Bagiante, H. Sigg, J. Van Bokhoven, Optics Letters 42 (2017)
    1931–1934.
date_created: 2018-12-11T11:47:51Z
date_published: 2017-05-15T00:00:00Z
date_updated: 2023-10-17T12:16:02Z
day: '15'
ddc:
- '530'
department:
- _id: NanoFab
doi: 10.1364/OL.42.001931
intvolume: '        42'
issue: '10'
language:
- iso: eng
month: '05'
oa_version: None
page: 1931 - 1934
publication: Optics Letters
publication_status: published
publisher: Optica Publishing Group
publist_id: '7048'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Surface enhanced infrared absorption of chemisorbed carbon monoxide using plasmonic
  nanoantennas
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 42
year: '2017'
...
---
_id: '988'
abstract:
- lang: eng
  text: The current-phase relation (CPR) of a Josephson junction (JJ) determines how
    the supercurrent evolves with the superconducting phase difference across the
    junction. Knowledge of the CPR is essential in order to understand the response
    of a JJ to various external parameters. Despite the rising interest in ultraclean
    encapsulated graphene JJs, the CPR of such junctions remains unknown. Here, we
    use a fully gate-tunable graphene superconducting quantum intereference device
    (SQUID) to determine the CPR of ballistic graphene JJs. Each of the two JJs in
    the SQUID is made with graphene encapsulated in hexagonal boron nitride. By independently
    controlling the critical current of the JJs, we can operate the SQUID either in
    a symmetric or asymmetric configuration. The highly asymmetric SQUID allows us
    to phase-bias one of the JJs and thereby directly obtain its CPR. The CPR is found
    to be skewed, deviating significantly from a sinusoidal form. The skewness can
    be tuned with the gate voltage and oscillates in antiphase with Fabry-Pérot resistance
    oscillations of the ballistic graphene cavity. We compare our experiments with
    tight-binding calculations that include realistic graphene-superconductor interfaces
    and find a good qualitative agreement.
article_processing_charge: No
author:
- first_name: Gaurav
  full_name: Nanda, Gaurav
  last_name: Nanda
- first_name: Juan L
  full_name: Aguilera Servin, Juan L
  id: 2A67C376-F248-11E8-B48F-1D18A9856A87
  last_name: Aguilera Servin
  orcid: 0000-0002-2862-8372
- first_name: Péter
  full_name: Rakyta, Péter
  last_name: Rakyta
- first_name: Andor
  full_name: Kormányos, Andor
  last_name: Kormányos
- first_name: Reinhold
  full_name: Kleiner, Reinhold
  last_name: Kleiner
- first_name: Dieter
  full_name: Koelle, Dieter
  last_name: Koelle
- first_name: Kazuo
  full_name: Watanabe, Kazuo
  last_name: Watanabe
- first_name: Takashi
  full_name: Taniguchi, Takashi
  last_name: Taniguchi
- first_name: Lieven
  full_name: Vandersypen, Lieven
  last_name: Vandersypen
- first_name: Srijit
  full_name: Goswami, Srijit
  last_name: Goswami
citation:
  ama: Nanda G, Aguilera Servin JL, Rakyta P, et al. Current-phase relation of ballistic
    graphene Josephson junctions. <i>Nano Letters</i>. 2017;17(6):3396-3401. doi:<a
    href="https://doi.org/10.1021/acs.nanolett.7b00097">10.1021/acs.nanolett.7b00097</a>
  apa: Nanda, G., Aguilera Servin, J. L., Rakyta, P., Kormányos, A., Kleiner, R.,
    Koelle, D., … Goswami, S. (2017). Current-phase relation of ballistic graphene
    Josephson junctions. <i>Nano Letters</i>. American Chemical Society. <a href="https://doi.org/10.1021/acs.nanolett.7b00097">https://doi.org/10.1021/acs.nanolett.7b00097</a>
  chicago: Nanda, Gaurav, Juan L Aguilera Servin, Péter Rakyta, Andor Kormányos, Reinhold
    Kleiner, Dieter Koelle, Kazuo Watanabe, Takashi Taniguchi, Lieven Vandersypen,
    and Srijit Goswami. “Current-Phase Relation of Ballistic Graphene Josephson Junctions.”
    <i>Nano Letters</i>. American Chemical Society, 2017. <a href="https://doi.org/10.1021/acs.nanolett.7b00097">https://doi.org/10.1021/acs.nanolett.7b00097</a>.
  ieee: G. Nanda <i>et al.</i>, “Current-phase relation of ballistic graphene Josephson
    junctions,” <i>Nano Letters</i>, vol. 17, no. 6. American Chemical Society, pp.
    3396–3401, 2017.
  ista: Nanda G, Aguilera Servin JL, Rakyta P, Kormányos A, Kleiner R, Koelle D, Watanabe
    K, Taniguchi T, Vandersypen L, Goswami S. 2017. Current-phase relation of ballistic
    graphene Josephson junctions. Nano Letters. 17(6), 3396–3401.
  mla: Nanda, Gaurav, et al. “Current-Phase Relation of Ballistic Graphene Josephson
    Junctions.” <i>Nano Letters</i>, vol. 17, no. 6, American Chemical Society, 2017,
    pp. 3396–401, doi:<a href="https://doi.org/10.1021/acs.nanolett.7b00097">10.1021/acs.nanolett.7b00097</a>.
  short: G. Nanda, J.L. Aguilera Servin, P. Rakyta, A. Kormányos, R. Kleiner, D. Koelle,
    K. Watanabe, T. Taniguchi, L. Vandersypen, S. Goswami, Nano Letters 17 (2017)
    3396–3401.
date_created: 2018-12-11T11:49:33Z
date_published: 2017-05-05T00:00:00Z
date_updated: 2023-09-22T09:56:21Z
day: '05'
ddc:
- '621'
department:
- _id: NanoFab
doi: 10.1021/acs.nanolett.7b00097
external_id:
  isi:
  - '000403631600011'
file:
- access_level: open_access
  checksum: 22021daa90cf13b01becd776838acb7b
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:13:50Z
  date_updated: 2020-07-14T12:48:18Z
  file_id: '5037'
  file_name: IST-2017-826-v1+1_2017_Aguilera-Servin_Current.pdf
  file_size: 508638
  relation: main_file
file_date_updated: 2020-07-14T12:48:18Z
has_accepted_license: '1'
intvolume: '        17'
isi: 1
issue: '6'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '05'
oa: 1
oa_version: Published Version
page: 3396 - 3401
publication: Nano Letters
publication_identifier:
  issn:
  - '15306984'
publication_status: published
publisher: American Chemical Society
publist_id: '6412'
pubrep_id: '826'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Current-phase relation of ballistic graphene Josephson junctions
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 17
year: '2017'
...
---
_id: '1154'
abstract:
- lang: eng
  text: "Cellular locomotion is a central hallmark of eukaryotic life. It is governed
    by cell-extrinsic molecular factors, which can either emerge in the soluble phase
    or as immobilized, often adhesive ligands. To encode for direction, every cue
    must be present as a spatial or temporal gradient. Here, we developed a microfluidic
    chamber that allows measurement of cell migration in combined response to surface
    immobilized and soluble molecular gradients. As a proof of principle we study
    the response of dendritic cells to their major guidance cues, chemokines. The
    majority of data on chemokine gradient sensing is based on in vitro studies employing
    soluble gradients. Despite evidence suggesting that in vivo chemokines are often
    immobilized to sugar residues, limited information is available how cells respond
    to immobilized chemokines. We tracked migration of dendritic cells towards immobilized
    gradients of the chemokine CCL21 and varying superimposed soluble gradients of
    CCL19. Differential migratory patterns illustrate the potential of our setup to
    quantitatively study the competitive response to both types of gradients. Beyond
    chemokines our approach is broadly applicable to alternative systems of chemo-
    and haptotaxis such as cells migrating along gradients of adhesion receptor ligands
    vs. any soluble cue. \r\n"
acknowledgement: 'This work was supported by the Swiss National Science Foundation
  (Ambizione fellowship; PZ00P3-154733 to M.M.), the Swiss Multiple Sclerosis Society
  (research support to M.M.), a fellowship from the Boehringer Ingelheim Fonds (BIF)
  to J.S., the European Research Council (grant ERC GA 281556) and a START award from
  the Austrian Science Foundation (FWF) to M.S. #BioimagingFacility'
article_number: '36440'
author:
- first_name: Jan
  full_name: Schwarz, Jan
  id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
  last_name: Schwarz
- first_name: Veronika
  full_name: Bierbaum, Veronika
  id: 3FD04378-F248-11E8-B48F-1D18A9856A87
  last_name: Bierbaum
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Tino
  full_name: Frank, Tino
  last_name: Frank
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Mark Tobias
  full_name: Bollenbach, Mark Tobias
  id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
  last_name: Bollenbach
  orcid: 0000-0003-4398-476X
- first_name: Savaş
  full_name: Tay, Savaş
  last_name: Tay
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
- first_name: Matthias
  full_name: Mehling, Matthias
  id: 3C23B994-F248-11E8-B48F-1D18A9856A87
  last_name: Mehling
  orcid: 0000-0001-8599-1226
citation:
  ama: Schwarz J, Bierbaum V, Merrin J, et al. A microfluidic device for measuring
    cell migration towards substrate bound and soluble chemokine gradients. <i>Scientific
    Reports</i>. 2016;6. doi:<a href="https://doi.org/10.1038/srep36440">10.1038/srep36440</a>
  apa: Schwarz, J., Bierbaum, V., Merrin, J., Frank, T., Hauschild, R., Bollenbach,
    M. T., … Mehling, M. (2016). A microfluidic device for measuring cell migration
    towards substrate bound and soluble chemokine gradients. <i>Scientific Reports</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/srep36440">https://doi.org/10.1038/srep36440</a>
  chicago: Schwarz, Jan, Veronika Bierbaum, Jack Merrin, Tino Frank, Robert Hauschild,
    Mark Tobias Bollenbach, Savaş Tay, Michael K Sixt, and Matthias Mehling. “A Microfluidic
    Device for Measuring Cell Migration towards Substrate Bound and Soluble Chemokine
    Gradients.” <i>Scientific Reports</i>. Nature Publishing Group, 2016. <a href="https://doi.org/10.1038/srep36440">https://doi.org/10.1038/srep36440</a>.
  ieee: J. Schwarz <i>et al.</i>, “A microfluidic device for measuring cell migration
    towards substrate bound and soluble chemokine gradients,” <i>Scientific Reports</i>,
    vol. 6. Nature Publishing Group, 2016.
  ista: Schwarz J, Bierbaum V, Merrin J, Frank T, Hauschild R, Bollenbach MT, Tay
    S, Sixt MK, Mehling M. 2016. A microfluidic device for measuring cell migration
    towards substrate bound and soluble chemokine gradients. Scientific Reports. 6,
    36440.
  mla: Schwarz, Jan, et al. “A Microfluidic Device for Measuring Cell Migration towards
    Substrate Bound and Soluble Chemokine Gradients.” <i>Scientific Reports</i>, vol.
    6, 36440, Nature Publishing Group, 2016, doi:<a href="https://doi.org/10.1038/srep36440">10.1038/srep36440</a>.
  short: J. Schwarz, V. Bierbaum, J. Merrin, T. Frank, R. Hauschild, M.T. Bollenbach,
    S. Tay, M.K. Sixt, M. Mehling, Scientific Reports 6 (2016).
date_created: 2018-12-11T11:50:27Z
date_published: 2016-11-07T00:00:00Z
date_updated: 2021-01-12T06:48:41Z
day: '07'
ddc:
- '579'
department:
- _id: MiSi
- _id: NanoFab
- _id: Bio
- _id: ToBo
doi: 10.1038/srep36440
ec_funded: 1
file:
- access_level: open_access
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:09:32Z
  date_updated: 2018-12-12T10:09:32Z
  file_id: '4756'
  file_name: IST-2017-744-v1+1_srep36440.pdf
  file_size: 2353456
  relation: main_file
file_date_updated: 2018-12-12T10:09:32Z
has_accepted_license: '1'
intvolume: '         6'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
    (EU)
- _id: 25A8E5EA-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Y 564-B12
  name: Cytoskeletal force generation and transduction of leukocytes (FWF)
publication: Scientific Reports
publication_status: published
publisher: Nature Publishing Group
publist_id: '6204'
pubrep_id: '744'
quality_controlled: '1'
scopus_import: 1
status: public
title: A microfluidic device for measuring cell migration towards substrate bound
  and soluble chemokine gradients
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2016'
...
---
_id: '1321'
abstract:
- lang: eng
  text: Most migrating cells extrude their front by the force of actin polymerization.
    Polymerization requires an initial nucleation step, which is mediated by factors
    establishing either parallel filaments in the case of filopodia or branched filaments
    that form the branched lamellipodial network. Branches are considered essential
    for regular cell motility and are initiated by the Arp2/3 complex, which in turn
    is activated by nucleation-promoting factors of the WASP and WAVE families. Here
    we employed rapid amoeboid crawling leukocytes and found that deletion of the
    WAVE complex eliminated actin branching and thus lamellipodia formation. The cells
    were left with parallel filaments at the leading edge, which translated, depending
    on the differentiation status of the cell, into a unipolar pointed cell shape
    or cells with multiple filopodia. Remarkably, unipolar cells migrated with increased
    speed and enormous directional persistence, while they were unable to turn towards
    chemotactic gradients. Cells with multiple filopodia retained chemotactic activity
    but their migration was progressively impaired with increasing geometrical complexity
    of the extracellular environment. These findings establish that diversified leading
    edge protrusions serve as explorative structures while they slow down actual locomotion.
acknowledged_ssus:
- _id: SSU
acknowledgement: "This work was supported by the German Research Foundation (DFG)
  Priority Program SP 1464 to T.E.B.S. and M.S., and European Research Council (ERC
  GA 281556) and Human Frontiers Program grants to M.S.\r\nService Units of IST Austria
  for excellent technical support."
article_processing_charge: No
article_type: original
author:
- first_name: Alexander F
  full_name: Leithner, Alexander F
  id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
  last_name: Leithner
  orcid: 0000-0002-1073-744X
- first_name: Alexander
  full_name: Eichner, Alexander
  id: 4DFA52AE-F248-11E8-B48F-1D18A9856A87
  last_name: Eichner
- first_name: Jan
  full_name: Müller, Jan
  id: AD07FDB4-0F61-11EA-8158-C4CC64CEAA8D
  last_name: Müller
- first_name: Anne
  full_name: Reversat, Anne
  id: 35B76592-F248-11E8-B48F-1D18A9856A87
  last_name: Reversat
  orcid: 0000-0003-0666-8928
- first_name: Markus
  full_name: Brown, Markus
  id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87
  last_name: Brown
- first_name: Jan
  full_name: Schwarz, Jan
  id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
  last_name: Schwarz
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: David
  full_name: De Gorter, David
  last_name: De Gorter
- first_name: Florian
  full_name: Schur, Florian
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
- first_name: Jonathan
  full_name: Bayerl, Jonathan
  last_name: Bayerl
- first_name: Ingrid
  full_name: De Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: De Vries
- first_name: Stefan
  full_name: Wieser, Stefan
  id: 355AA5A0-F248-11E8-B48F-1D18A9856A87
  last_name: Wieser
  orcid: 0000-0002-2670-2217
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Frank
  full_name: Lai, Frank
  last_name: Lai
- first_name: Markus
  full_name: Moser, Markus
  last_name: Moser
- first_name: Dontscho
  full_name: Kerjaschki, Dontscho
  last_name: Kerjaschki
- first_name: Klemens
  full_name: Rottner, Klemens
  last_name: Rottner
- first_name: Victor
  full_name: Small, Victor
  last_name: Small
- first_name: Theresia
  full_name: Stradal, Theresia
  last_name: Stradal
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: Leithner AF, Eichner A, Müller J, et al. Diversified actin protrusions promote
    environmental exploration but are dispensable for locomotion of leukocytes. <i>Nature
    Cell Biology</i>. 2016;18:1253-1259. doi:<a href="https://doi.org/10.1038/ncb3426">10.1038/ncb3426</a>
  apa: Leithner, A. F., Eichner, A., Müller, J., Reversat, A., Brown, M., Schwarz,
    J., … Sixt, M. K. (2016). Diversified actin protrusions promote environmental
    exploration but are dispensable for locomotion of leukocytes. <i>Nature Cell Biology</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/ncb3426">https://doi.org/10.1038/ncb3426</a>
  chicago: Leithner, Alexander F, Alexander Eichner, Jan Müller, Anne Reversat, Markus
    Brown, Jan Schwarz, Jack Merrin, et al. “Diversified Actin Protrusions Promote
    Environmental Exploration but Are Dispensable for Locomotion of Leukocytes.” <i>Nature
    Cell Biology</i>. Nature Publishing Group, 2016. <a href="https://doi.org/10.1038/ncb3426">https://doi.org/10.1038/ncb3426</a>.
  ieee: A. F. Leithner <i>et al.</i>, “Diversified actin protrusions promote environmental
    exploration but are dispensable for locomotion of leukocytes,” <i>Nature Cell
    Biology</i>, vol. 18. Nature Publishing Group, pp. 1253–1259, 2016.
  ista: Leithner AF, Eichner A, Müller J, Reversat A, Brown M, Schwarz J, Merrin J,
    De Gorter D, Schur FK, Bayerl J, de Vries I, Wieser S, Hauschild R, Lai F, Moser
    M, Kerjaschki D, Rottner K, Small V, Stradal T, Sixt MK. 2016. Diversified actin
    protrusions promote environmental exploration but are dispensable for locomotion
    of leukocytes. Nature Cell Biology. 18, 1253–1259.
  mla: Leithner, Alexander F., et al. “Diversified Actin Protrusions Promote Environmental
    Exploration but Are Dispensable for Locomotion of Leukocytes.” <i>Nature Cell
    Biology</i>, vol. 18, Nature Publishing Group, 2016, pp. 1253–59, doi:<a href="https://doi.org/10.1038/ncb3426">10.1038/ncb3426</a>.
  short: A.F. Leithner, A. Eichner, J. Müller, A. Reversat, M. Brown, J. Schwarz,
    J. Merrin, D. De Gorter, F.K. Schur, J. Bayerl, I. de Vries, S. Wieser, R. Hauschild,
    F. Lai, M. Moser, D. Kerjaschki, K. Rottner, V. Small, T. Stradal, M.K. Sixt,
    Nature Cell Biology 18 (2016) 1253–1259.
date_created: 2018-12-11T11:51:21Z
date_published: 2016-10-24T00:00:00Z
date_updated: 2024-03-25T23:30:09Z
day: '24'
ddc:
- '570'
department:
- _id: MiSi
- _id: NanoFab
- _id: Bio
doi: 10.1038/ncb3426
ec_funded: 1
file:
- access_level: open_access
  checksum: e1411cb7c99a2d9089c178a6abef25e7
  content_type: application/pdf
  creator: dernst
  date_created: 2020-05-14T16:33:46Z
  date_updated: 2020-07-14T12:44:43Z
  file_id: '7844'
  file_name: 2018_NatureCell_Leithner.pdf
  file_size: 4433280
  relation: main_file
file_date_updated: 2020-07-14T12:44:43Z
has_accepted_license: '1'
intvolume: '        18'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/4.0/
month: '10'
oa: 1
oa_version: Submitted Version
page: 1253 - 1259
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
    (EU)
publication: Nature Cell Biology
publication_status: published
publisher: Nature Publishing Group
publist_id: '5949'
quality_controlled: '1'
related_material:
  record:
  - id: '323'
    relation: dissertation_contains
    status: public
scopus_import: 1
status: public
title: Diversified actin protrusions promote environmental exploration but are dispensable
  for locomotion of leukocytes
tmp:
  image: /images/cc_by_nc_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
    BY-NC-SA 4.0)
  short: CC BY-NC-SA (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2016'
...
