Bergese P, Oliviero G, Alessandri I, Depero LE. Thermodynamics of mechanical transduction of surface confined receptor/ligand reactions.
J Colloid Interface Sci 2007;
316:1017-22. [PMID:
17889897 DOI:
10.1016/j.jcis.2007.08.048]
[Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2007] [Revised: 08/20/2007] [Accepted: 08/21/2007] [Indexed: 10/22/2022]
Abstract
Chemomechanics of surface stress is discussed in terms of interfacial thermodynamics. In the first section the paper shows how to quantitatively describe the chemical equilibrium of a receptor/ligand binding reaction confined at a solid-liquid interface and how the overall work of the reaction splits into chemical and surface work, that appears as a surface pressure. In the second section this thermodynamic model is applied to describe the experimental results of microcantilever bending induced by DNA hybridization occurring onto one of its faces.
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