Organic fluorophores in developing latent fingerprints: an up-to-date review

IF 2.3 4区材料科学 Q2 CHEMISTRY, APPLIED

Journal of Coatings Technology and Research Pub Date : 2024-10-18 DOI:10.1007/s11998-024-00991-8

Rakshitha K. Jain, Dhanya Sunil, Poornima Bhagavath

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Abstract

Fingerprints have been established as legitimate and critical forensic science evidence for identifying criminals beginning as early as the twentieth century. This article details the different types of fingerprints, the broad range of surfaces, and various development techniques available for on-site latent fingerprint collection, with fingerprint fidelity being of prime significance. Fluorescent imaging of latent finger-marks benefits from enhanced sensitivity, selectivity, and reduced reliance on instruments. The review focuses on the topical developments reported on small-molecule organic fluorophores which could be used to develop latent prints through powder, solution, and fuming approaches. These inexpensive luminophores extend wide emission profiles that span the visible spectrum to visualize the latent prints with exceptional resolution, free from any interference originating from the background surface. Further, the critical challenges and prospective scope for future research developments to improve the detection of latent fingerprints using small-molecule fluorophores are also discussed.

Graphical abstract

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有机荧光团用于潜在指纹的研究进展

早在20世纪，指纹就被确立为识别罪犯的合法和关键的法医科学证据。本文详细介绍了现场潜在指纹采集的不同类型、广泛的表面范围和各种显影技术，其中指纹保真度是最重要的。荧光成像的潜在手印受益于提高灵敏度，选择性和减少对仪器的依赖。本文综述了小分子有机荧光团在粉末、溶液和烟熏三种方法上的最新进展。这些廉价的发光团扩展了宽的发射轮廓，跨越可见光谱，以特殊的分辨率可视化潜在的指纹，不受任何来自背景表面的干扰。此外，还讨论了利用小分子荧光团改进潜在指纹检测的关键挑战和未来研究发展的前景。图形抽象

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来源期刊

Journal of Coatings Technology and Research 工程技术-材料科学：膜

CiteScore

4.30

自引率

8.70%

发文量

130

审稿时长

2.5 months

期刊介绍： Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.