title: Nanoplasmonic imaging of latent fingerprints and identification of cocaine.
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.
authors.affiliation: Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 (China).
authors.forename: Kun
authors.initials: K
authors.lastname: Li
authors.forename: Weiwei
authors.initials: W
authors.lastname: Qin
authors.forename: Fan
authors.initials: F
authors.lastname: Li
authors.forename: Xingchun
authors.initials: X
authors.lastname: Zhao
authors.forename: Bowei
authors.initials: B
authors.lastname: Jiang
authors.forename: Kun
authors.initials: K
authors.lastname: Wang
authors.forename: Suhui
authors.initials: S
authors.lastname: Deng
authors.forename: Chunhai
authors.initials: C
authors.lastname: Fan
authors.forename: Di
authors.initials: D
authors.lastname: Li
mesh_terms: D052157:Aptamers, Nucleotide / Q000494:pharmacology*; D003042:Cocaine / Q000737:chemistry*; D003878:Dermatoglyphics; D006046:Gold / Q000737:chemistry*; D053758:Nanoparticles
chemical_list: D052157:Aptamers, Nucleotide; D006046:Gold; D003042:Cocaine
keywords: aptamers; cocaine; fingerprints; gold; nanoparticles