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Researchers Develop Portable Sensor to Help Agencies Detect Fentanyl and Other Chemical Threats
U.S. Army Combat Capabilities Development Command Chemical Biological Center
Jan. 5, 2026 | 17:19
CB Defense Today is an interview program featuring experts who discuss innovations, technologies, and partnerships relevant to the U.S. Army Combat Capabilities Development Command Chemical Biological Center (DEVCOM CBC) and the chemical and biological defense community.
In this episode, public affairs specialist Jack Bunja interviews research physical scientist Ashish Tripathi, Ph.D., and research chemist Jason Guicheteau, Ph.D., from the DEVCOM CBC spectroscopy branch. They discuss how the latest iteration of the Portable Microscopy Chemical Detection System (PMCDS) can serve as a lightweight, non-destructive triage tool across a wide range of scenarios, from detecting chemical threats on the battlefield to identifying fentanyl pills at the border.
During the interview, Dr. Guicheteau and Dr. Tripathi explain how the PMCDS uses Raman spectroscopy, a non-destructive chemical analysis technique. In combination with optical microscopy, the PMCDS provides initial detection information to operators and users of potentially hazardous materials. The PMCDS device helps protect and support warfighters who are working in a variety of field environments.
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Researchers Develop Portable Sensor to Help Agencies Detect Fentanyl and Other Chemical Threats
Researchers Develop Portable Sensor to Help Agencies Detect Fentanyl and Other Chemical Threats
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189th Infantry Brigade
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Mission & Vision

Mission: 
189th IN BDE (CATB) observes, coaches, and trains our ARNG and USAR partners to provide trained and ready units to support combatant commander requirements around the world. O/O, conduct Mobilization and Large Scale Mobilization Operations (LSMO) in support of our ARNG and USAR partners to meet combatant commander OPLAN requirements.
Vision: 
Our purpose is to support First Army’s mission to achieve FORSCOM directed readiness and deliver trained and ready NG and RC forces. We accomplish this through partnership with the National Guard and US Army Reserve as FORSCOM’s proponent for the integration of the Army’s Total Force Policy (ATFP) and execution of Mobilization Training Centers (MTC) operations as part of the Army’s LSMO effort.

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