Application of nanoparticles for the enhancement of latent fingerprints

Citation:

Matias Sametband, Shweky, Itzhak , Banin, Uri , Mandler, Daniel , and Almog, Joseph . 2007. “Application Of Nanoparticles For The Enhancement Of Latent Fingerprints”. Chem Commun (Camb)Chemical Communications (Cambridge, England), Pp. 1142 - 4.

Abstract:

Two different types of nanoparticles dissolved in organic solution, gold stabilized by n-alkanethiols and CdSe/ZnS stabilized by n-alkane-amine, adhere preferentially to the ridges of latent fingerprints; the gold deposits catalyze silver electroless deposition from "Silver Physical Developer" (Ag-PD), an aqueous solution containing silver colloids stabilized by cationic surfactants, to form dark impressions of the ridge details; the hydrophobic capped gold nanoparticles significantly improve the intensity and clarity of the developed prints compared with Ag-PD alone; finger marks treated with CdSe/ZnS nanoparticles can be viewed directly, due to their fluorescence under UV illumination.[on SciFinder (R)]