NCJ Number
184322
Journal
Journal of Forensic Sciences Volume: 45 Issue: 4 Dated: July 2000 Pages: 770-773
Date Published
July 2000
Length
4 pages
Annotation
This paper examines issues that arise in connection with the use of photoluminescent semiconductor nanocrystals for fingerprint detection; these issues include dendrimer size, absolute and relative nanocrystal/dendrimer concentrations, solvent systems, photoluminescence spectra and lifetimes, fingerprint treatments, and range of applicability.
Abstract
CdS nanocrystal/dendrimer nanocomposites with a range of concentration of the photoluminescent semiconductor nanocluster and the dendrimer were prepared in methanol and one-to-nine solutions of methanol to water. The research used the solutions to detect cyanoacrylate ester fumed and unfumed fingerprints on polyethylene and aluminum foil. Findings suggested that photoluminescent semiconductor nanocrystals/nanocomposites will form the next milestone in fingerprint detection methodology. Figures and 8 references (Author abstract modified)