Field-effect saccharide sensing using AlGaN/GaN heterostructures and boronic acid based chemical receptors

Reference:

Schuller, T. A., Kuball, M., Flower, S. E., James, T. D., Fossey, J. S., Marcon, D., Das, J., Degroot, S., Germain, M. and Sarua, A., 2011. Field-effect saccharide sensing using AlGaN/GaN heterostructures and boronic acid based chemical receptors. Sensors and Actuators B-Chemical, 160 (1), pp. 1078-1081.

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Official URL:

http://dx.doi.org/10.1016/j.snb.2011.09.029

Abstract

We demonstrate a novel field-effect saccharide sensor device using an AlGaN/GaN heterostructure functionalized with a chemical receptor, featuring a thiol group, alkane chain linker and a simple boronic acid. Fabricated devices were demonstrated to electronically detect buffered saccharide solutions (fructose, galactose and glucose) of varying concentrations. These results provide proof-of-concept for the development AlGaN/GaN-based sensor devices incorporating boronic acid receptor chemistry.

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