title: Surface modification for the collection and identification of fingerprints and colorimetric detection of urea nitrate.
abstract: Glass surfaces were modified with a combination of dyes and reagents to allow for the potential simultaneous recording of a detailed fingerprint and the detection of the explosive urea nitrate (UN), as a proof of principle of surface modification for simultaneous linking of identity to manipulation of explosives. By coating microscope slides with 9,10-diphenylanthracene (DPA), p-dimethylaminobenzaldehyde (p-DMAB) and p-dimethylaminocinnamaldehyde (p-DMAC), a colorimetric change was observed in the presence of UN, while revealing a fingerprint with enough resolution to isolate at least 10 minutiae. This is the first step in creating point-of-care devices capable of detecting low concentrations of explosives and drug metabolites and connecting them to a fingerprint.
authors: Department of Sciences, John Jay College of Criminal Justice, City University of New York, New York, 524 W 59th Street, New York, NY, 10019.
authors: Shoronia N
authors: SN
authors: Cross
authors: Elliot
authors: E
authors: Quinteros
authors: Marcel
authors: M
authors: Roberts
keywords: 9,10-diphenylanthracene; fingerprint; forensic science; p-dimethylaminobenzaldehyde; p-dimethylaminocinnamaldehyde; urea nitrate