title: Rare Earth Fluorescent Nanomaterials for Enhanced Development of Latent Fingerprints.
abstract: The most commonly found fingerprints at crime scenes are latent and, thus, an efficient method for detecting latent fingerprints is very important. However, traditional developing techniques have drawbacks such as low developing sensitivity, high background interference, complicated operation, and high toxicity. To tackle this challenge, we have synthesized two kinds of rare earth fluorescent nanomaterials, including the fluoresce red-emitting YVO4:Eu nanocrystals and green-emitting LaPO4:Ce,Tb nanobelts, and then used them as fluorescent labels for the development of latent fingerprints with high sensitivity, high contrast, high selectivity, high efficiency, and low background interference, on various substrates including noninfiltrating materials, semi-infiltrating materials, and infiltrating materials.
authors.affiliation: Department of Trace Examination, National Police University of China , Shenyang 110035, P. R. China.|Key Laboratory of Impression Evidence Examination and Identification Technology, Ministry of Public Security , Shenyang 110035, P. R. China.
authors.forename: Meng
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Trace Examination, National Police University of China , Shenyang 110035, P. R. China.|Key Laboratory of Impression Evidence Examination and Identification Technology, Ministry of Public Security , Shenyang 110035, P. R. China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.affiliation: Department of Trace Examination, National Police University of China , Shenyang 110035, P. R. China.|Key Laboratory of Impression Evidence Examination and Identification Technology, Ministry of Public Security , Shenyang 110035, P. R. China.
authors.forename: Aoyang
authors.initials: A
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan, Shanxi 030001, P. R. China.
authors.forename: Jian
authors.initials: J
authors.lastname: Wu
authors.affiliation: Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma , Norman, Oklahoma 73019, United States.
authors.forename: Chuanbin
authors.initials: C
authors.lastname: Mao
mesh_terms: D003878:Dermatoglyphics; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D044707:Forensic Sciences / Q000295:instrumentation* / Q000379:methods; D008674:Metals, Rare Earth / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*
chemical_list: D005456:Fluorescent Dyes; D008674:Metals, Rare Earth
keywords: fingerprint; fluorescent; nanocrystals; nanowires; rare earth