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Proceedings Paper

High-sensitivity high-throughput chip based biosensor array for multiplexed detection of heavy metals
Author(s): Hai Yan; Naimei Tang; Grace A. Jairo; Swapnajit Chakravarty; Diane A. Blake; Ray T. Chen
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Paper Abstract

Heavy metal ions released into the environment from industrial processes lead to various health hazards. We propose an on-chip label-free detection approach that allows high-sensitivity and high-throughput detection of heavy metals. The sensing device consists of 2-dimensional photonic crystal microcavities that are combined by multimode interferometer to form a sensor array. We experimentally demonstrate the detection of cadmium-chelate conjugate with concentration as low as 5 parts-per-billion (ppb).

Paper Details

Date Published: 22 April 2016
PDF: 5 pages
Proc. SPIE 9725, Frontiers in Biological Detection: From Nanosensors to Systems VIII, 972507 (22 April 2016); doi: 10.1117/12.2212731
Show Author Affiliations
Hai Yan, The Univ. of Texas at Austin (United States)
Naimei Tang, Omega Optics, Inc. (United States)
Grace A. Jairo, Tulane Univ. School of Medicine (United States)
Swapnajit Chakravarty, Omega Optics, Inc. (United States)
Diane A. Blake, Tulane Univ. School of Medicine (United States)
Ray T. Chen, The Univ. of Texas at Austin (United States)
Omega Optics, Inc. (United States)


Published in SPIE Proceedings Vol. 9725:
Frontiers in Biological Detection: From Nanosensors to Systems VIII
Benjamin L. Miller; Brian T. Cunningham, Editor(s)

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