Li K, Qin W, Li F, Zhao X, Jiang B, Wang K, Deng S, Fan C, Li D. Nanoplasmonic imaging of latent fingerprints and identification of cocaine.
Angew Chem Int Ed Engl 2013;
52:11542-5. [PMID:
24038830 DOI:
10.1002/anie.201305980]
[Citation(s) in RCA: 134] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Indexed: 11/12/2022]
Abstract
Search for traces: Aptamer-bound Au nanoparticles (Au NPs) were used to provide high-resolution dark-field microscopy images of latent fingerprints (LFPs) with level 2 and level 3 details. Furthermore, the cocaine-induced aggregation of Au NPs results in a true green-to-red color change of the scattered light, providing a quasi-quantative method to identify cocaine loadings in LFPs.
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