用于潜伏指纹检测的 CoPr(x)Cr(2-x)O4 纳米粒子的高级合成与法医应用

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-12-15 DOI:10.1016/j.ceramint.2024.10.096

Sachin Haigar , Vaishnavi Khanapur , B.R. Radha Krushna , H. Nagabhushana , V. Ganesh , I.S. Yahia , H. Algarni , Nipa Roy , Sang Woo Joo , Jagadeesha Angadi V

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引用次数: 0

摘要

本研究调查了 CoPr(x)Cr(2-x)O4 （x=0.00、0.01、0.03 和 0.05）纳米粒子的生产、表征和用途，以改进潜伏指纹（LFP）检测。采用氧化剂和燃料摩尔比为 1:1 的溶液燃烧工艺制备了含有不同量镨（Pr3+）的 CoCr2O4。X 射线衍射 (XRD) 被用来检测这些纳米粒子的结构特征，结果表明晶体尺寸和晶格参数各不相同，而尖晶石结构保持不变。傅立叶变换红外光谱法（FTIR）证实尖晶石结构中存在 CoCr2O4，这表明预期纳米粒子的合成是有效的。该研究特别展示了这些纳米颗粒在法医学中如何用于识别各种表面（包括钢、纸张和 OHP 片）上的 LFP。在日光下，x=0.05的CoPr0.03Cr1.97O4 (CoPr-3)变体表现更好，可以清晰地观察到I-III级指纹特征。三维互动图和高分辨率图像表明，纳米颗粒粘附在指纹残留物上，提高了可见度和细节。研究还考察了这些纳米粒子在紫外线照射和老化条件下的稳定性，结果发现 CoPr-3 荧光粉具有显著的抗紫外线降解能力，其功效可保持 60 天。这些结果表明，CoPr(x)Cr(2-x)O4 纳米粒子可作为一种可靠、有效的材料用于法医指纹分析，显著提高 LFP 检测灵敏度和分辨率。

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Advanced synthesis and forensic application of CoPr(x)Cr(2-x)O4 nanoparticles for latent fingerprint detection

The production, characterisation, and use of CoPr_(x)Cr_(2-x)O₄ (x = 0.00, 0.01, 0.03, and 0.05) nanoparticles for improved latent fingerprint (LFP) detection are investigated in this study. CoCr₂O₄ containing different amounts of Praseodymium(Pr³⁺) were prepared by solution combustion process using 1:1 M ratio of oxidizer and fuel. X-ray diffraction (XRD) was used to examine the structural characteristics of these nanoparticles, and the results showed that the crystallite sizes and lattice parameters varied while the spinel structure remained constant. The effective synthesis of the intended nanoparticles was indicated by the confirmation of CoCr₂O₄ presence in the spinel structure by Fourier Transform Infrared Spectroscopy, or FTIR. In particular, the study showed how these nanoparticles can be used in forensic science to identify LFP on a variety of surfaces, including steel, paper, and OHP sheets. In daylight, the CoPr_0.03Cr_1.97O₄ (CoPr-3)variation with x = 0.05 performed better, allowing for a clear viewing of Level I–III fingerprint features. 3D interactive plots and high-resolution images demonstrated that the nanoparticles stuck to fingerprint remnants, improving visibility and detail. The study also looked at how stable these nanoparticles were under UV irradiation and aging, and it discovered that CoPr-3 phosphor was remarkably resistant to UV degradation and retained its efficacy for 60 days. These results demonstrate the potential of CoPr_(x)Cr_(2-x)O₄ nanoparticles as a reliable and effective material for forensic fingerprint analysis, providing notable enhancements in LFP detection sensitivity and resolution.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.