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Issue 11, 2007
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Application of nanoparticles for the enhancement of latent fingerprints

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Abstract

Two different types of nanoparticles dissolved in organic solution, gold stabilized by n-alkanethiols and CdSe/ZnS stabilized by n-alkaneamine, 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; fingermarks treated with CdSe/ZnS nanoparticles can be viewed directly, due to their fluorescence under UV illumination.

Graphical abstract: Application of nanoparticles for the enhancement of latent fingerprints

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Publication details

The article was received on 02 Jan 2007, accepted on 05 Feb 2007 and first published on 19 Feb 2007


Article type: Communication
DOI: 10.1039/B618966K
Citation: Chem. Commun., 2007,0, 1142-1144
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    Application of nanoparticles for the enhancement of latent fingerprints

    M. Sametband, I. Shweky, U. Banin, D. Mandler and J. Almog, Chem. Commun., 2007, 0, 1142
    DOI: 10.1039/B618966K

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