Ultrasonic-Microwave Heating Synthesis and Latent Fingerprint Development of Gold Nanoclusters

Based on the features of ultrasonic and microwave radiation methods, bovine serum albumin-protected gold nanoclusters have been efficiently synthesized in a novel fashion via ultrasonic-microwave heating. The experimental results show that the mean diameter of Au NCs is about 3.3 nm. In particular,...

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Bibliographic Details
Published in:Bulletin of the Chemical Society of Japan 2017, Vol.90 (6), p.754-759
Main Authors: Huang, Rui, Chen, Hongyu, Xia, Zhining
Format: Article
Language:English
Subjects:
Fingerprints
Fluorescence
Gold
Heating
Microwave heating
Microwaves
Self-assembly
Serum albumin
Ultrasonic testing
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Summary:Based on the features of ultrasonic and microwave radiation methods, bovine serum albumin-protected gold nanoclusters have been efficiently synthesized in a novel fashion via ultrasonic-microwave heating. The experimental results show that the mean diameter of Au NCs is about 3.3 nm. In particular, Au NCs are found to reach a high quantum yield of 7.1%. The prepared Au NCs powders are utilized to develop latent fingermarks. With the self-assembly development observation system, fingermarks, even the old fingermarks emit orange-red fluorescence and show clear ridge details. Consequently, developing old fingermarks deposited on different surfaces with Au NCs is an efficient and green method.
ISSN:0009-2673
1348-0634
DOI:10.1246/bcsj.20170016