Aged Fingermarks Detection with CdS/PAMAM Nanocomposites

Abstract:

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CdS(Cadmium sulfide)/PAMAM(polyamidoamine) Nanocomposites were in-situ prepared taking PAMAM dendrimers as stabilization in water. The prepared solution containing photoluminescent semiconductor CdS QDs(Quantum dots) was utilized for detection of aged fingermarks on adhesive tape strips. The fingermarks were aged for 1 d, 7 d and 30 d in nature light respectively. The results show that the latent aged fingermarks treated with CdS/PAMAM nanocomposites emit yellow luminescence under ultraviolet excitation of 365 nm in the dark. Aged fingermarks were detected successfully with better resolving rate comparing with existing nano-scale commercial TiO2 powder suspension.

Info:

Periodical:

Advanced Materials Research (Volumes 282-283)

Edited by:

Helen Zhang and David Jin

Pages:

466-469

DOI:

10.4028/www.scientific.net/AMR.282-283.466

Citation:

Y. J. Jin et al., "Aged Fingermarks Detection with CdS/PAMAM Nanocomposites", Advanced Materials Research, Vols. 282-283, pp. 466-469, 2011

Online since:

July 2011

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Price:

$35.00

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