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- Title
基于β-CD@AuNPs结合乳酸的汗潜指印可视化研究.
- Authors
黄 锐; 范向洋
- Abstract
Objective To prepare β-CD@AuNPs for exploration about visual exposure of sweat latent fi ngerprints which to have their contained lactic acid bound into the preparation. Methods β-CD@AuNPs was prepared through reduction of HS-β-cyclodextrin (HS-β-CD) under microwave heating. Lactic acid, one content-higher component of sweat, was bound into β-CD@AuNPs by way of inherent coalescence between them, resulting in the latent sweat fi ngerprints having turned out a different color of β-CD@AuNPs solution from that of either the blank or other alternative substance. HSV data processing software was adopted to handle the unveiling color so that the revealed sweat latent fi ngerprints were more vivid to be visually detected through their contained lactic acid. Results A quantitative relationship was present between the changing color of β-CD@AuNPs and the amount of lactic acid, demonstrating the ability of β-CD@AuNPs to distinguish fresh latent sweat fi ngerprints from the old ones. Conclusions β-CD@AuNPs had been innovatively utilized to detect lactic acid in sweat latent fi ngerprints, eligible for making the obtained results successively processed into HSV data for quantifi cation. Sweat latent fi ngerprints can be realized into synchronous retrieval of their visual two-dimensional patterns and composition information.
- Subjects
LACTIC acid; FORENSIC fingerprinting; CATIONS; COLOR; COMPUTER software
- Publication
Forensic Science & Technology, 2022, Issue 3, p239
- ISSN
1008-3650
- Publication type
Article
- DOI
10.16467/j.1008-3650.2021.0144