Article

Optical Chemical Sensors

Biomedical Diagnostics Institute, Dublin City University, Glasnevin, Dublin 9, Ireland.
Chemical Reviews (Impact Factor: 45.66). 03/2008; 108(2):400-22. DOI: 10.1021/cr068102g
Source: PubMed

ABSTRACT Optical chemical sensors (OCS) is defined as miniaturized devices that can deliver real time and on-line information on the presence of specific compounds or ions in a complex samples. The most widely used techniques utilized in OCS are optical absorption and luminescence. In yielding analyte information, the OCS employ optical transduction techniques. This review will concentrate on developments in OCS with major emphasis from 2000 to the present day. The recent developments in this field have been driven by factors such as the availability of low-cost, miniature optoelectronic light sources and detectors, the need for multianalyte array-based sensors, specifically in the area of biosensing, advances in microfluidics and imaging technology, and the sensor network, as well as optical materials and components.

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