This title appears in the Scientific Report :
2018
Please use the identifier:
http://hdl.handle.net/2128/22860 in citations.
Please use the identifier: http://dx.doi.org/10.1021/acs.jpcb.8b07901 in citations.
Weak Shape Anisotropy Leads to a Nonmonotonic Contribution to Crowding, Impacting Protein Dynamics under Physiologically Relevant Conditions
Weak Shape Anisotropy Leads to a Nonmonotonic Contribution to Crowding, Impacting Protein Dynamics under Physiologically Relevant Conditions
The effect of a nonspherical particle shape on the dynamics in crowded solutions presents a significant challenge for a comprehensive understanding of interaction and structural relaxation in biological and soft matter. We report that small deviations from a spherical shape induce a nonmonotonic con...
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Personal Name(s): | Myung, Jin Suk (Corresponding author) |
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Roosen-Runge, Felix / Winkler, Roland G. (Corresponding author) / Gompper, Gerhard (Corresponding author) / Schurtenberger, Peter / Stradner, Anna | |
Contributing Institute: |
Theorie der Weichen Materie und Biophysik; IAS-2 |
Published in: |
The journal of physical chemistry |
Imprint: |
Washington, DC
Soc.66306
2018
|
PubMed ID: |
30499666 |
DOI: |
10.1021/acs.jpcb.8b07901 |
Document Type: |
Journal Article |
Research Program: |
Physical Basis of Diseases |
Link: |
Restricted Restricted Published on 2018-11-30. Available in OpenAccess from 2019-11-30. Published on 2018-11-30. Available in OpenAccess from 2019-11-30. |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1021/acs.jpcb.8b07901 in citations.
The effect of a nonspherical particle shape on the dynamics in crowded solutions presents a significant challenge for a comprehensive understanding of interaction and structural relaxation in biological and soft matter. We report that small deviations from a spherical shape induce a nonmonotonic contribution to the crowding effect on the short-time cage diffusion compared with spherical systems, using molecular dynamics simulations with mesoscale hydrodynamics of a multiparticle collision dynamics fluid in semidilute systems with volume fractions smaller than 0.35. We show that the nonmonotonic effect due to anisotropy is caused by the combination of a reduced relative mobility over the entire concentration range and a looser and less homogeneous cage packing of nonspherical particles. Our finding stresses that nonsphericity induces new complexity, which cannot be accounted for in effective sphere models, and is of great interest in applications such as formulations as well as for the fundamental understanding of soft matter in general and crowding effects in living cells in particular. |