Journal Published Online: 01 May 2000
Volume 45, Issue 3

Photoluminescent Semiconductor Nanocrystals for Fingerprint Detection

CODEN: JFSCAS

Abstract

The concept of utilizing photoluminescent semiconductor nanocrystals for latent fingerprint detection, especially in concert with phase-resolved imaging for background fluorescence suppression, is reduced to practice with CdS nanocrystals that are capped with dioctyl sulfosuccinate. The nanocrystals are dissolved in heptane or hexane and are applied in much the same way as staining with fluorescent dye, on articles that have been pre-fumed with cyanoacrylate ester and also on the sticky side of electrical tape without pre-fuming. Since CdS can form a photoluminescent nanocomposite with dendrimers, a feasibility examination of dendrimer tagging of fingerprints has also been conducted.

Author Information

Roland Menzel, E
Texas Tech University, Lubbock, TX
Savoy, SM
Systems & Processes Engineering Corporation, Austin, TX
Ulvick, SJ
Systems & Processes Engineering Corporation, Austin, TX
Cheng, KH
Texas Tech University, Lubbock, TX
Murdock, RH
Texas Tech University, Lubbock, TX
Sudduth, MR
Texas Tech University, Lubbock, TX
Pages: 7
Price: $25.00
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Details
Stock #: JFS14727J
ISSN: 0022-1198
DOI: 10.1520/JFS14727J