Issue |
Europhys. Lett.
Volume 62, Number 6, June 2003
|
|
---|---|---|
Page(s) | 876 - 882 | |
Section | Condensed matter: structure, mechanical and thermal properties | |
DOI | https://doi.org/10.1209/epl/i2003-00454-4 | |
Published online | 01 June 2003 |
Irreversible vs. reversible bridging: When is kinetics relevant for adhesion?
1
Material Research Laboratory, UCSB - Santa Barbara, CA 90095-1547, USA
2
Physics Department, University of Southern Denmark - Campusvej 55 DK-5230 Odense M, Denmark
3
Department of Polymer Chemistry, Graduate School of Engineering Kyoto University - Kyoto 606-8501, Japan
4
LDFC-CNRS UMR 7506 - 3 rue de l'Université, 67084 Strasbourg Cedex, France
Received:
20
January
2003
Accepted:
15
April
2003
We study theoretically the adhesion between two approaching
surfaces, one containing tethered ligands and the other receptors.
Using the reaction-diffusion formalism, we show that the range of
adhesion is generally determined by a combination
of tether dynamics, ligand-receptor affinity and experimental
speed of approach v. Contrary to previous studies, we fully
account for back reactions and are thus able to describe the
crossover between irreversible adhesion at large affinities or
high speed v and reversible adhesion at small affinities or low
speed. We also briefly discuss the case of rupture and show that
in the limit of irreversible adhesion the rupture occurs always
at a larger distance than
determined for
approaching surfaces.
PACS: 68.35.Np – Adhesion / 82.40.-g – Chemical kinetics and reactions: special regimes and techniques / 05.20.-y – Classical statistical mechanics
© EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.