NDLI: NIR-induced highly sensitive detection of latent fingermarks by NaYF$_{4}$:Yb,Er upconversion nanoparticles in a dry powder state

Content Provider	Springer Nature Link
Author	Wang, Meng Li, Ming Yang, Mingying Zhang, Xiaomei Yu, Aoyang Zhu, Ye Qiu, Penghe Mao, Chuanbin
Copyright Year	2014
Abstract	The most commonly found fingermarks at crime scenes are latent and, thus, an efficient method for detecting latent fingermarks is very important. However, traditional developing techniques have drawbacks such as low detection sensitivity, high background interference, complicated operation, and high toxicity. To tackle this challenge, we employed fluorescent NaYF$_{4}$:Yb,Er upconversion nanoparticles (UCNPs), which can fluoresce visible light when excited by 980 nm human-safe near-infrared light, to stain the latent fingermarks on various substrate surfaces. The UCNPs were successfully used as a novel fluorescent label for the detection of latent fingermarks with high sensitivity, low background, high efficiency, and low toxicity on various substrates including non-infiltrating materials (glass, marble, aluminum alloy sheets, stainless steel sheets, aluminum foils, and plastic cards), semi-infiltrating materials (floor leathers, ceramic tiles, wood floor, and painted wood), and infiltrating materials such as various types of papers. This work shows that UCNPs are a versatile fluorescent label for the facile detection of fingermarks on virtually any material, enabling their practical applications in forensic sciences.
Starting Page	1800
Ending Page	1810
Page Count	11
File Format	PDF
ISSN	19980124
Journal	Nano Research
Volume Number	8
Issue Number	6
e-ISSN	19980000
Language	English
Publisher	Tsinghua University Press
Publisher Date	2015-03-28
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	upconversion nanoparticles fingermark development Nanotechnology Materials Science Atomic/Molecular Structure and Spectra Condensed Matter Physics Biotechnology Biomedicine general
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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