Electrochromic Enhancement of Latent Fingerprints on Stainless Steel Surfaces

Ann L. Beresford · A. Robert Hillman

97 citations0/0 files storedAnalytical Chemistry

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Forensic Fingerprint Detection Methods Electrochemical Analysis and Applications Conducting polymers and applications

Abstract

The visualization of latent fingerprints on a metallic (stainless steel) surface is described by means of spatially selective deposition of an electrochromic polymer (polyaniline). Inhibition of electrochemical processes on areas of the surface masked by the fingerprint results in polymer deposition generating a negative image of the fingermark. By variation of the applied potential, the polymer optical characteristics can be continuously and reversibly adjusted to optimize visual contrast of the fingerprint.

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References

2007“Intelligent” Fingerprinting: Simultaneous Identification of Drug Metabolites and Individuals by Using Antibody‐Functionalized Nanoparticles 2008Metal-containing nanoparticles and nano-structured particles in fingermark detection 2007Application of nanoparticles for the enhancement of latent fingerprints 2008SECM for imaging and detection of latent fingerprints

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2012Electrochromic enhancement of latent fingerprints by poly(3,4-ethylenedioxythiophene)2014Latent fingerprint enhancement via conducting electrochromic copolymer films of pyrrole and 3,4-ethylenedioxythiophene on stainless steel 2015Advances in the development and component recognition of latent fingerprints 2011A Release‐Induced Response for the Rapid Recognition of Latent Fingerprints and Formation of Inkjet‐Printed Patterns 2012Imaging Latent Fingerprints by Electrochemiluminescence 2021A critical review of fundamentals and applications of electrochemical development and imaging of latent fingerprints 2016Emerging latent fingerprint technologies: a review 2011Comparative Study of Electrochromic Enhancement of Latent Fingerprints with Existing Development Techniques*

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