Fast and Selective Detection of Trigonelline, a Coffee Quality Marker, Using a Portable Raman Spectrometer

Discover how handheld Raman spectroscopy is helping distinguish skin cancer from normal tissue, courtesy of researchers from Florida Atlantic University.

FT-IR spectroscopy, long treated as a mature bench technique for confirming a carbonyl stretch or fingerprinting a polymer, has quietly become one of chemistry’s most versatile discovery engines: it now infers molecular structure straight from a spectrum without a reference library, resolves chemistry tens of nanometers wide, and screens a fingerstick of blood for disease in minutes. The last five years of published research show FT-IR moving from a confirmatory tool into a predictive, autonomous, and field-ready analytical platform.

Raman spectroscopy is entering one of its most consequential periods since its commercialization, driven by artificial intelligence, coherent heterodyne detection, and radical instrument miniaturization, with new deep-learning frameworks and portable systems moving Raman analysis into fields, factories, and crime scenes.