Physical amplification of chemical colorimetric sensing

Rachel Odessey; Do-Joong Lee; Keegan Quigley; Jin Ho Kim; Stephen Giardini; Richard Osgood; Jimmy Xu

doi:10.1117/12.2518158

24 May 2019 Physical amplification of chemical colorimetric sensing

Rachel Odessey, Do-Joong Lee, Keegan Quigley, Jin Ho Kim, Stephen Giardini, Richard Osgood, Jimmy Xu

Proceedings Volume 11007, Advanced Environmental, Chemical, and Biological Sensing Technologies XV; 110070G (2019) https://doi.org/10.1117/12.2518158
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

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.

Citation Download Citation

Rachel Odessey, Do-Joong Lee, Keegan Quigley, Jin Ho Kim, Stephen Giardini, Richard Osgood, and Jimmy Xu "Physical amplification of chemical colorimetric sensing", Proc. SPIE 11007, Advanced Environmental, Chemical, and Biological Sensing Technologies XV, 110070G (24 May 2019); https://doi.org/10.1117/12.2518158

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