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Visualization of latent fingerprints using Prussian blue thin films

Gäng、Qin Qin、Meiqin、Zhang、Yang、Yu、Zhu、Shou-liang

2013中国化学快报：英文版Social Sciences被引 11

摘要

Herein,a facile and effective approach was proposed for visualizing latent fingerprints(LFPs) on two kinds of conductive surfaces by spatially selective electrochemical deposition of Prussian blue(PB) thin films.This strategy exploited the fingerprint residue as an insulating mask and the PB thin films were only generated on the bare surface including the valleys between the papillary ridges,which produced a negative image of LFPs with high resolution up to the third level information.The surface morphology of PB films was characterized by the field emission scanning electron microscopy(FE-SEM).This enhancement technique showed promising performance in selected materials of practical interest.

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