Electrochromic Enhancement of Latent Fingerprints on Stainless Steel Surfaces

被引：84

作者：

Beresford, Ann L. ^{[1
]}

Hillman, A. Robert ^{[1
]}

机构：

[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England

来源：

ANALYTICAL CHEMISTRY | 2010年 / 82卷 / 02期

关键词：

NANOPARTICLES; VISUALIZATION;

D O I：

10.1021/ac9025434

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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.

引用

页码：483 / 486

页数：4

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