Open AccessIntegrated optical fluorescence multisensor for water pollution
Author(s) -
Ping-Rang Hua,
J. Patrick Hole,
James S. Wilkinson,
Günther Proll,
Jens Tschmelak,
Güenter Gauglitz,
Michael Jackson,
Richard Nudd,
Hannah M. T. Griffith,
Ramadan A. Abuknesha,
Joachim Kaiser,
Peter Kraemmer
Publication year - 2005
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.001124
Subject(s) - analyte , pollutant , detection limit , fluorescence , evanescent wave , optical sensing , environmental science , materials science , optics , optoelectronics , chemistry , chromatography , physics , organic chemistry
An integrated optical multisensor for organic pollutants has been realised, and characterised for a single analyte. The sensor exploits fluorescence immunoassay in the evanescent field of channel waveguides to enable rapid, simultaneous and high-sensitivity fluorescence detection of up to 32 pollutants in water. The chemical modification used to render the surface specific to analytes allows automatic regeneration for immediate reuse. The system has been demonstrated for the key pollutant estrone and a detection limit below 1 ng/L has been achieved.