1. The Development of Latent Fingermarks for Visualization by Using AuNPs@AuNCs Core/Shell Nanoparticles.
- Author
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Liu, Yan Jun and Zhang, Ling Yan
- Subjects
- *
NANOPARTICLES , *GOLD nanoparticles , *LIGHT sources , *GOLD coatings , *POWDERS - Abstract
A method for in situ preparation of fluorescent AuNPs@AuNCs core/shell nanoparticles by the template of BSA coated gold nanoparticles was developed. The as-prepared AuNPs@AuNCs core/shell nanoparticles possessed advantages such as uniform size, improved monodispersity and excellent fluorescence. The AuNPs@AuNCs core/shell nanoparticles in powder and suspension form were applied to the detection of latent fingermark due to the above properties. The developed latent fingermarks by AuNPs@AuNCs core/shell powder on various surfaces can exhibit excellent ridge details with good contrast between the fingermarks and the substrate. Moreover, under alternative light sources, the latent fingermarks developed with AuNPs@AuNCs core/shell powder work well. The development of latent fingermarks was reported by using AuNPs@AuNCs core/shell nanoparticles because of uniform size, improved monodispersity and excellent fluorescence. The AuNPs@AuNCs core/shell nanoparticles in powder and suspension form were applied to the detection of latent fingermarks due to the above properties. The developed latent fingermarks by AuNPs@AuNCs powder on various surfaces can exhibit excellent ridge details with good contrast between the fingermarks and the substrate. Under alternative light sources, the latent fingermarks by AuNPs@AuNCs powder work well. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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