ATR FT-IR Spectroscopy: A Novel and Non-Destructive Approach for the Detection of Blood on a Single Fiber

Innovative Vibrational Spectroscopy Research for Forensic Application

“…However, there has been significant research conducted toward solving this problem. Sharma et al published a proof-of-concept study showing that ATR-FTIR spectroscopy combined with PCA can be used to detect blood traces on a variety of fabric substrates . While fabric dyes have been shown to interfere with bloodstain analysis in previously investigated methods, they were able to detect blood on a single fiber with 100% accuracy using an unsupervised model.…”

“…Sharma et al published a proof-of-concept study showing that ATR-FTIR spectroscopy combined with PCA can be used to detect blood traces on a variety of fabric substrates. 24 While fabric dyes have been shown to interfere with bloodstain analysis in previously investigated methods, they were able to detect blood on a single fiber with 100% accuracy using an unsupervised model. Fabric is a common form of nonbiological evidence; therefore, the ability to overcome substrate interference is necessary.…”

A novel paper‐based microfluidic device and UV‐visible spectroscopy coupled method for the field detection and analysis of seized marijuana samples

“…India's cannabis laws are governed by the Narcotics Drugs and Psychotropic Substances (NDPS) Act of 1985. While the sale and consumption of cannabis resin and marijuana (flowers), popularly known as “ganja” in India are prohibited, the seeds, stems, and leaves are permitted, but the individual states have their regulations regarding this matter [4].…”