文章基本信息

标题：Oil Red O (ORO) reagent for detection of latent fingermarks: a review
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作者：Gurvinder Singh Bumbrah ; Gurvinder Singh Sodhi ; Jasjeet Kaur 等
期刊名称：Egyptian Journal of Forensic Sciences
电子版ISSN：2090-5939
出版年度：2019
卷号：9
期号：1
页码：3-9
DOI：10.1186/s41935-018-0107-1
摘要：BackgroundFingerprints are most frequently used to establish the identity of a person in medicolegal cases. Wide range of methods (optical, physical, and chemical) can be used to detect latent fingerprints on porous and non-porous items recovered from crime scenes. Oil Red O, also called solvent red 27, is a lipophilic dye, which means that it stains fat and lipid components in biological samples. It is also used to stain oil and waxes to a red hue. Oil Red O is used to detect latent fingerprints on dry and wet porous items like paper and cardboard. ResultThe reagent develops clear, stable, and red-colored fingerprints which may be discerned in natural light. ConclusionAlthough the physical developer can also lift latent impressions from wet porous surfaces, the method is a multistep one and requires immersion of delicate, paper-like articles in a sequence of working solutions. Compared to that, the operational steps of Oil Red O method are simple and cost effective and require less equipment to process items.
关键词：Fingerprints ; Latent impressions ; Oil Red O ; Porous item ; Wet surfaces