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Physical amplification of chemical colorimetric sensing
Author(s): Rachel Odessey; Do-Joong Lee; Keegan Quigley; Jin Ho Kim; Stephen Giardini; Richard Osgood; Jimmy Xu
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Paper Abstract

Rapid and sensitive detection of hazardous chemicals is essential for worker safety in industrial environments and for soldier safety in the field. In this work, we propose a physical coloration platform to passively amplify existing colorimetric sensing mechanisms. We outline a design process which can be targeted to an arbitrary colorimetric indicator and target and fabricate as a demonstration a sensor which produces noticeable color change on reaction with ammonia in the vapor phase.

Paper Details

Date Published: 24 May 2019
PDF: 8 pages
Proc. SPIE 11007, Advanced Environmental, Chemical, and Biological Sensing Technologies XV, 110070G (24 May 2019); doi: 10.1117/12.2518158
Show Author Affiliations
Rachel Odessey, Brown Univ. (United States)
Do-Joong Lee, Brown Univ. (United States)
Keegan Quigley, Brown Univ. (United States)
Jin Ho Kim, Brown Univ. (United States)
Stephen Giardini, U.S. Army Natick Soldier Research, Development and Engineering Ctr. (United States)
Richard Osgood, U.S. Army Natick Soldier Research, Development and Engineering Ctr. (United States)
Jimmy Xu, Brown Univ. (United States)


Published in SPIE Proceedings Vol. 11007:
Advanced Environmental, Chemical, and Biological Sensing Technologies XV
Tuan Vo-Dinh, Editor(s)

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