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Nanobiohybrids: Bioinspired Sensors

Published online by Cambridge University Press:  01 February 2011

Nikolaos Chalkias
Affiliation:
Chemical and Biomolecular Engineering
Emmanuel P. Giannelis
Affiliation:
Materials Science and Engineering, Cornell University, Ithaca NY, Bard Hall 214, 14853
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Abstract

Nanohybrid artificial membranes made by intercalation of amphiphilic molecules into the galleries of a layered host, exhibit characteristics similar to biological membranes and they can be used as sensors. Different responses have been observed even for molecules that have similar features for example, saccharin and its sodium salt suggesting that the nanohybrid might be useful in developing an electronic nose. The dynamic range of the saccharin sensor is 20 - 300μM. In this paper we present our results on sensor fabrication and testing and discuss possible sensing mechanisms. In addition, we describe our work on immobilizing in the nanohybrid membranes Glucose Oxidase, Horseradish Peroxidase and Gramicidin and evaluating their performance.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

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