Aged fingermarks detection with CdS/PAMAM nanocomposites

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationAdvanced Research on Material Engineering, Chemistry, Bioinformatics, MECB 2011
Pages466-469
Number of pages4
DOIs
Publication statusPublished - 2011
Event2011 International Conference on Material Engineering, Chemistry, Bioinformatics, MECB2011 - Wuhan, China
Duration: 21 Aug 201122 Aug 2011

Publication series

NameAdvanced Materials Research
Volume282-283
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Material Engineering, Chemistry, Bioinformatics, MECB2011
Country/TerritoryChina
CityWuhan
Period21/08/1122/08/11

Keywords

  • Aged fingermarks
  • Cadmium sulfide
  • Dendrimers
  • Forensic science
  • Photoluminescence
  • Semiconductor quantum dots

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