Ethan P. Luta,1 Brittany Watterson,1 Matthew Z. Yates,2 Benjamin L. Miller3,4
1Dept. of Dermatology (United States) 2Dept. of Chemical Engineering (United States) 3Dept. of Dermatilogy (United States) 4Institute of Optics, Univ. of Rochester (United States)
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Polymer sorbents able to selectively capture specific classes of analytes have attracted significant interest in the context of photonic sensors (particularly waveguide-enhanced Raman spectroscopy, or WERS) for chemical warfare agents and industrial gases. We have developed a method for using aminopropyl methylsiloxane-dimethylsiloxane copolymers as inexpensive starting materials for the synthesis of new sorbents for chemical and biochemical sensing. Conversion of the starting polymer to a product sorbent can be accomplished via a simple, single-step reductive amination reaction with an aldehyde. Preliminary tests of a sorbent in the context of refractive index-based sensing of energetic compounds (explosives) using silicon nitride micoring resonators is also discussed.
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Ethan P. Luta, Brittany Watterson, Matthew Z. Yates, Benjamin L. Miller, "New polymer sorbents for waveguide-enhanced Raman spectroscopy (WERS) and refractive index-based photonic sensing," Proc. SPIE 12116, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXIII, 121160E (30 May 2022); https://doi.org/10.1117/12.2619383