Issue 7, 2011
From the journal:

Journal of Materials Chemistry

Molecular recognition induced mechanics: isotope effects in the interaction between gas phase substances and polymer-coated microcantilevers

Ariel Shemesh,*a   Sara Stolyarova,b   Yael Nemirovsky*b  and  Yoav Eichen*a  

* Corresponding authors

a Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, Haifa, Israel
E-mail: arielshe@tx.technion.ac.il, chryoav@tx.technion.ac.il

b Department of Electrical Engineering, Technion—Israel Institute of Technology, Technion City, Haifa, Israel
E-mail: nemirovsky@ee.technion.ac.il

Abstract

A novel Porous-Silicon-Over-Silicon (PSOS) chemomechanical microcantilever sensor for the isotope discrimination of gas phase substances is presented. A strong isotope effect is observed in the guest induced PSOS microcantilever bending curves of novel poly-4-vinylpyridine (P4VP) coated microcantilevers. Isotopologues of ethanol and water exhibit a clear difference in their time dependent bending response patterns. While the sorption of protiated isotopologues exhibits Langmuir-type sorption curves, deuterated isotopologues exhibit anomalous bending overshoot curves.

Graphical abstract: Molecular recognition induced mechanics: isotope effects in the interaction between gas phase substances and polymer-coated microcantilevers

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Article information

DOI
https://doi.org/10.1039/C0JM03991H
Article type
Communication
Submitted
18 Nov 2010
Accepted
07 Dec 2010
First published
07 Jan 2011

J. Mater. Chem., 2011,21, 2070-2073

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Molecular recognition induced mechanics: isotope effects in the interaction between gas phase substances and polymer-coated microcantilevers

A. Shemesh, S. Stolyarova, Y. Nemirovsky and Y. Eichen, J. Mater. Chem., 2011, 21, 2070 DOI: 10.1039/C0JM03991H

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