原子力显微镜和拉曼光谱联合研究法医学分析中的液体暴露对指纹的损害

IF 1.5 4区 物理与天体物理 Q3 PHYSICS, CONDENSED MATTER
Marco Menegazzo, Alberto Calloni, Daniele D’Ercole, Elisabetta Mei, Rossella Yivlialin, Franco Ciccacci, Lamberto Duò, Gianlorenzo Bussetti
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引用次数: 0

摘要

通过采用原子力显微镜(AFM)和拉曼光谱相结合的原创实验装置来研究液体环境中的不透明基底,研究了在酸性水中(模拟酸雨)放置数小时的指纹(潜伏指纹或合成残留指纹)的稳定性。结果表明,尽管指纹在几个小时后普遍受损,但仍能发现持续的残留物,显示出良好的形态稳定性和特征性拉曼光谱,可被视为指纹存在于所研究表面的可靠证据。这些发现证明了在科学法医调查中结合显微镜和光谱分析的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Combined Atomic Force Microscopy and Raman Spectroscopy Investigation of Fingerprints Detriment upon Liquid Exposure for Forensic Analysis
By employing an original experimental setup combining atomic force microscopy (AFM) and Raman spectroscopy to investigate opaque substrates in a liquid environment, the stability of fingerprints (latent or with synthetic residues) left for several hours in acidic water (mimicking acid rain) is studied. It is shown that, despite the general detriment of the fingerprint after a few hours, persistent residuals are found, showing good morphological stability and a characteristic Raman spectrum, which can be considered reliable proof of the presence of a fingerprint on the investigated surface. These findings demonstrate the importance of combining microscopic and spectroscopic analyses in scientific forensic investigations.
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来源期刊
Physica Status Solidi B-basic Solid State Physics
Physica Status Solidi B-basic Solid State Physics 物理-物理:凝聚态物理
CiteScore
3.30
自引率
6.20%
发文量
321
审稿时长
2 months
期刊介绍: physica status solidi is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Being among the largest and most important international publications, the pss journals publish review articles, letters and original work as well as special issues and conference contributions. physica status solidi b – basic solid state physics is devoted to topics such as theoretical and experimental investigations of the atomistic and electronic structure of solids in general, phase transitions, electronic and optical properties of low-dimensional, nano-scale, strongly correlated, or disordered systems, superconductivity, magnetism, ferroelectricity etc.
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