分析化学2025，Vol.53Issue(8)：1279-1289,中插4-中插18,26.DOI:10.19756/j.issn.0253-3820.251153
显现材料性质对手印显现效果影响的定量评估
Quantitative Evaluation of Influences of Material Properties on Latent Fingerprint Development Effects
摘要
Abstract
The influence of material properties on fingerprint development effects were systematically studied.Firstly,carbon dots/NaYF4 and Cu nanoclusters/starch nanocomposites respectively possessing different fluorescent intensities and dual fluorescent colors,as well as NaYF4 micro-/nano-materials exhibiting different morphologies,sizes,and surface properties were chemically synthesized and further used for latent fingerprint development.Then,the developing effects were comprehensively evaluated by visual analysis combining with spectral characterization and Python-based calculation.Finally,the influences of material properties on latent fingerprint development were quantitatively evaluated from three dimensions including contrast,sensitivity,and selectivity.The fluorescence properties of developing materials and substrates could significantly affect the developing contrast,namely,the stronger the developing signal,the higher the contrast;the weaker the background noise,the higher the contrast.The sizes and morphologies of the developing materials could respectively influence the quantity and quality of developed minutiae,and significantly affect the developing sensitivity,namely,the smaller the particle size of developing materials,the more the quantity of developed minutiae and the higher the sensitivity;the smaller the surface area of developing materials,the higher the quality of developed minutiae and the higher the sensitivity.The surface properties together with the sizes and morphologies of developing materials could influence their adsorption performances,and significantly affect the developing selectivity,namely,the stronger the specific adsorption of developing materials with fingerprint substance,and the weaker the non-specific adsorption of developing materials with substrate,the higher the selectivity.Moreover,the fingerprint development using the materials with suitable surface area and appropriate mass would have a high selectivity.关键词
手印/显现/纳米材料/对比度/灵敏度/选择性Key words
Fingerprint/Development/Nanomaterials/Contrast/Sensitivity/Selectivity引用本文复制引用
李杰,李明,马榕蔚,徐致泽,房川皓,王猛..显现材料性质对手印显现效果影响的定量评估[J].分析化学,2025,53(8):1279-1289,中插4-中插18,26.基金项目
国家自然科学基金项目(No.21205139)、辽宁省应用基础研究计划项目(No.2023JH2/101300097)、辽宁省2020年百千万人才工程项目、辽宁省教育厅科学研究经费项目(Nos.LJKZ0068,LJKMZ20220384)和辽宁省教育科学"十四五"规划2024年度课题项目(No.JG24DB482)资助. Supported by the National Natural Science Foundation of China(No.21205139),the Project of Applied Basic Research Program from Liaoning Province(No.2023JH2/101300097),the Liaoning BaiQianWan Talents Program in 2020,the Project from Educational Department of Liaoning Province(Nos.LJKZ0068,LJKMZ20220384),and the Project of Education Science"14th Five-Year Plan"from Liaoning Province in 2024(No.JG24DB482). （No.21205139）
