摘要
潜手印显现技术对案件侦破和司法鉴定起着重要的作用。根据客体表面的潜手印特点,需使用不同的显现技术,如悬浮液显现技术主要用于陈旧、潮湿或粘性的客体表面,而基于新兴纳米颗粒的悬浮液显现技术还因具备优异的灵敏度、信噪比、选择性等显现性能,日益受到重视。简要介绍了目前普遍使用的传统小颗粒悬浮液显现技术,较为详细地综述了近十几年来新兴纳米颗粒(如量子点、碳纳米点、稀土发光材料、纳米氧化物等)在手印显现方面的应用进展,并概述了悬浮液显现技术的操作方法,最后分析了该技术目前所面临的挑战和未来发展方向,为其在法庭科学、公安教育等领域的应用提供参考。
Latent fingerprint development plays a crucial role in case detection and forensic identification.Different techniques should be utilized based on the characteristic of latent fingerprints on object surfaces.Suspension-based developing technology is primarily suitable for old,wet or sticky surfaces.However,the emerging nanoparticle suspension is gain increasing attention due to its excellent sensitivity,signal-to-noise ratio,selectivity,and other properties.This review systematically examined the application of both traditional small particle suspension widely used in latent fingerprint development and the new nanoparticle suspension,including quantum dots,carbon nanodots,rare-earth luminescence,and nano-oxides over the past decade.Additionally,the operating methods of suspension-based developing technology were summarized.Lastly,the existing challenges and future development direction of the techniques in latent fingerprint detection were analyzed,providing a valuable reference for the fields of forensic science and police education.
作者
李泽莹
姚坤满
武晓琳
张鸿雁
LI Ze-ying;YAO Kun-man;WU Xiao-lin;ZHANG Hong-yan(Police Experimental Training Center,Guangdong Police College,Guangzhou 510440,China)
出处
《化学试剂》
CAS
2024年第5期20-29,共10页
Chemical Reagents
基金
2022年度广东省教育科学规划项目(高等教育专项)(2022GXJK282)
广东警官学院2022年度科研项目(2022SY04)
广东警官学院2023年大学生创新创业训练省级项目(S202311110028)。
关键词
悬浮液
潜手印显现
纳米颗粒
浸显法
滴显法
喷显法
suspension
latent fingerprint development
nanoparticles
immersion
dropping
spray
作者简介
李泽莹(1994-),女,广东普宁人,硕士,助理实验师,主要研究方向为指纹显现等痕迹检验;通讯作者:姚坤满,E-mail:yaokm6@mail2.sysu.edu.cn。
