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Zhang Y, Xu B, Wang Z, Yang R, Zhu L, He W, Zhou G, Li J, Li J, Han Z, Hong Y, Wang S. Surface-enhanced Raman imaging through sprayed probes for the application in chemical visualization of methamphetamine within fingerprints. Anal Bioanal Chem 2023:10.1007/s00216-023-04757-w. [PMID: 37258691 DOI: 10.1007/s00216-023-04757-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/01/2023] [Accepted: 05/16/2023] [Indexed: 06/02/2023]
Abstract
For fingerprint-involved forensic investigations, cyanoacrylates and inorganic nanophosphors are mostly used for fingerprint visualization. However, methods to simultaneously report fingerprint images and the corresponding specific chemical information have yet to be realized. In this work, chemical visualization of the analytes in fingerprints is achieved through surface-enhanced Raman spectroscopy (SERS) measurements with the aid of spray-dispersed gold nanorods (AuNRs). The optimal coverage of AuNRs was studied by theoretical simulations and experimental operations. A rapid sampling of fingerprints with the chemical of interest was developed by tuning the spray parameters. In particular, the SERS imaging of methamphetamine in fingerprint latent was attempted by addressing the SERS spectral features of methamphetamine. This chemical visualization method reflects both the graphical and chemical characteristics of fingerprints in a single batch measurement, in which methamphetamine can be detected and mapped at the concentration of 10-5 M. The data processing approach was also modified by employing relevant logical judgments. The improved SERS images with sharpened patterns of fingerprints were obtained by involving the scored multi-peak judgments.
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Affiliation(s)
- Yating Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Buyi Xu
- National Anti-Drug Laboratory Sichuan Regional Center, Chengdu, 610041, People's Republic of China
| | - Zehua Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Rongji Yang
- National Anti-Drug Laboratory Sichuan Regional Center, Chengdu, 610041, People's Republic of China
| | - Leixia Zhu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Wei He
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Guoyun Zhou
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Jiujuan Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Jianhui Li
- Suining Ruijiexing Technology Co., Ltd., Suining, 629001, People's Republic of China
| | - Zhiwei Han
- Bomin Electronics Co., Ltd., Meizhou, 514000, People's Republic of China
| | - Yan Hong
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China.
| | - Shouxu Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China.
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Kagumba LC, Penelle J. Anionic Ring-opening Polymerization of Alkyl 1-Cyanocyclopropanecarboxylates. Macromolecules 2005. [DOI: 10.1021/ma0484025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lawino C. Kagumba
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003-4530
| | - Jacques Penelle
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003-4530
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3
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Abstract
Eosin-blue (I) dye, along with a phase transfer catalyst, has been used to detect latent fingerprints on a wide range of surfaces, including paper, glass, steel, lamination sheets, polythene, plastic and bakelite.
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Affiliation(s)
- G S Sodhi
- Department of Chemistry, S.G.T.B. Khalsa College, University of Delhi, Delhi 110007, India
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