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Chemo-mechanical interactions between adsorbed molecules and thin elastic films

Chemo-mechanical interactions between adsorbed molecules and thin elastic films
Chemo-mechanical interactions between adsorbed molecules and thin elastic films
A general mechanics framework is presented to describe the interaction of molecular groups adsorbed on deformable thin films. Equations describing film deformation are expressed in terms of the pair potential that governs the interaction between adsorbed groups and large-deflection deformation descriptions. We illustrate that the pair potential can be used to define two-dimensional constitutive parameters for the adsorbed groups that describe their energetic contribution during arbitrary deformations. The framework is applicable to a wide range of interactions, including electrochemical interactions between a solution and film surface, interactions between neighboring adsorbed biopolymers and interactions between living cells. Key dimensionless parameters involving molecular interaction, surface coverage, film dimensions, and elastic properties are highlighted, and simplified governing equations for small deflections are identified. Solutions are presented that describe the influence of adsorbed groups on bending of cantilevers, pinned films and built-in (clamped) films. For clamped films, the critical molecular interaction parameters required to induce buckling are identified, and post-buckling behavior discussed in terms of the implications for making biological sensors.
0022-5096
2119-2140
Begley, Matthew R.
9f4e52bc-507a-4ef6-910f-bd11d25c2209
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Komaragiri, Uday
54773d5d-d433-4143-90a2-b201e6b9bcc0
Begley, Matthew R.
9f4e52bc-507a-4ef6-910f-bd11d25c2209
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Komaragiri, Uday
54773d5d-d433-4143-90a2-b201e6b9bcc0

Begley, Matthew R., Utz, Marcel and Komaragiri, Uday (2005) Chemo-mechanical interactions between adsorbed molecules and thin elastic films. Journal of the Mechanics and Physics of Solids, 53 (9), 2119-2140. (doi:10.1016/j.jmps.2005.03.006).

Record type: Article

Abstract

A general mechanics framework is presented to describe the interaction of molecular groups adsorbed on deformable thin films. Equations describing film deformation are expressed in terms of the pair potential that governs the interaction between adsorbed groups and large-deflection deformation descriptions. We illustrate that the pair potential can be used to define two-dimensional constitutive parameters for the adsorbed groups that describe their energetic contribution during arbitrary deformations. The framework is applicable to a wide range of interactions, including electrochemical interactions between a solution and film surface, interactions between neighboring adsorbed biopolymers and interactions between living cells. Key dimensionless parameters involving molecular interaction, surface coverage, film dimensions, and elastic properties are highlighted, and simplified governing equations for small deflections are identified. Solutions are presented that describe the influence of adsorbed groups on bending of cantilevers, pinned films and built-in (clamped) films. For clamped films, the critical molecular interaction parameters required to induce buckling are identified, and post-buckling behavior discussed in terms of the implications for making biological sensors.

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More information

Published date: September 2005
Organisations: Chemistry, Faculty of Natural and Environmental Sciences, Magnetic Resonance

Identifiers

Local EPrints ID: 355568
URI: https://eprints.soton.ac.uk/id/eprint/355568
ISSN: 0022-5096
PURE UUID: 1ce5d706-9138-4a97-91ae-69f5a095a2a7
ORCID for Marcel Utz: ORCID iD orcid.org/0000-0003-2274-9672

Catalogue record

Date deposited: 24 Oct 2013 13:42
Last modified: 14 Jul 2018 00:30

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