Time-Gated Imaging of Latent Fingerprints with Level 3 Details Achieved by Persistent Luminescent Fluoride Nanoparticles.
ACS Appl Mater Interfaces
; 14(24): 28230-28238, 2022 Jun 22.
Article
em En
| MEDLINE
| ID: mdl-35687348
ABSTRACT
The discovery of X-ray-charged persistent luminescence (PersL) in fluoride nanoparticles enables these materials to emit photons without real-time excitation, which provides a great possibility for the development of new luminescent nanotechnologies. In this work, we developed NaLuF4Mn nanoparticles with intense green PersL and functionalized surfaces and accordingly achieved time-gated imaging of latent fingerprints (LFPs) with Level 3 details. These surface-modified NaLuF4Mn nanoparticles exhibited near-spherical morphology, long-lasting emission for several hours, appropriate trap depth distribution, and tight chemical bonding with amino acids from fingerprints, thus greatly improving the accuracy of LFP imaging in a variety of environments. The developed NaLuF4Mn PersL nanoparticles are expected to find broad applications in the fields of LFP imaging and in vivo biological imaging.
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MEDLINE
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En
Ano de publicação:
2022
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Article