Novel environmentally-safe, non-toxic, and supply-chain-resilient biomaterials for optical detection of molecules

Richard M. Osgood III; Jin Ho Kim; Zebulon Di Zinno; Ihsan Uluturk; Stephen Giardini; Michael Manser; Parker Brandwein; Akshay Nagar; Jimmy Xu; Joseph Plumitallo; Seokkee Kim; Alkim Akyurtlu; Guinevere Strack; Steven Kooi

doi:10.1117/12.2663793

14 June 2023 Novel environmentally-safe, non-toxic, and supply-chain-resilient biomaterials for optical detection of molecules

Richard M. Osgood III, Jin Ho Kim, Zebulon Di Zinno, Ihsan Uluturk, Stephen Giardini, Michael Manser, Parker Brandwein, Akshay Nagar, Jimmy Xu, Joseph Plumitallo, Seokkee Kim, Alkim Akyurtlu, Guinevere Strack, Steven Kooi

Author Affiliations +

Proceedings Volume PC12541, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXIV; PC1254106 (2023) https://doi.org/10.1117/12.2663793
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

We report results from thin films of novel biomaterials based on natural minerals, never before synthesized in the laboratory using primarily non-toxic and environmentally friendly materials and characterized optically. These biomaterial films have high indices of refraction and would be a natural and toxicologically safe material to use for large-area optical sensing of molecules, including toxic industrial molecules. Adhering modest concentrations of molecules in solution (water/humidity, ethanol, glucose, ammonia, etc.) to the surface of a Fabry-Perot cavity is shown experimentally to sufficiently alter the index of refraction and thickness of the Fabry-Perot films to enable detection of the molecules via optical methods (reflectance, ellipsometry, transmission, etc.). We report laboratory sensing of 3 types of molecules in solution with controlled high-quality Fabry-Perot cavities. We discuss different and better biominerals to use and discern potential applications.

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Richard M. Osgood III, Jin Ho Kim, Zebulon Di Zinno, Ihsan Uluturk, Stephen Giardini, Michael Manser, Parker Brandwein, Akshay Nagar, Jimmy Xu, Joseph Plumitallo, Seokkee Kim, Alkim Akyurtlu, Guinevere Strack, and Steven Kooi "Novel environmentally-safe, non-toxic, and supply-chain-resilient biomaterials for optical detection of molecules", Proc. SPIE PC12541, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXIV, PC1254106 (14 June 2023); https://doi.org/10.1117/12.2663793

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KEYWORDS

Molecules

Environmental sensing

Fabry–Perot interferometers

Refraction

Remote sensing

Minerals

Optical sensing

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