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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 282-283Aged Fingermarks Detection with CdS/PAMAM...

Aged Fingermarks Detection with CdS/PAMAM Nanocomposites

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Abstract:

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.

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Advanced Research on Material Engineering, Chemistry, Bioinformatics

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Periodical:

Advanced Materials Research (Volumes 282-283)

Pages:

466-469

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.282-283.466

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Online since:

July 2011

Authors:

Yu Juan Jin, Yun Jun Luo, Guo Zhi Xu, Biao Yang

Keywords:

Aged Fingermarks, Cadmium Sulfide, Dendrimers, Forensic Science, Photoluminescence (PL), Semiconductor Quantum Dots

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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