Aggregation induced emission based on benzo[4,5] thiazolo[3,2-a]pyrimidine-3-carbonitrile fused tetraphenylethylene for visualization of latent fingerprints and anticounterfeiting applications

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL Journal of Molecular Structure Pub Date : 2025-07-05 Epub Date: 2025-03-04 DOI:10.1016/j.molstruc.2025.141937

Rakesh Rapolu , Dnyaneshwar I. Bhusanur , Avinash L. Puyad , Sidhanath V. Bhosale , Sheshanath V. Bhosale

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Abstract

The detection of latent fingure prints (LFTs) are a significant step in forensic science. The visualization of LFTs are necessary to investigate the crime scene and footprint of criminals. On this connection, in recent years’ aggregation induced emissive (AIE) are emerged as potential luminescent materials of their potential use in fingerprint detection. Herein, we designed and successfully synthesized 4-imino-2-(methylthio)-8-(1,2,2-triphenylvinyl)-4H-benzo[4,5] thiazolo[3,2-a] pyrimidine-3-carbonitrile (TPE-2) AIEgen bearing –SCH₃ donor and –CN acceptor subunits. The photophysical, optical and AIE properties were investigated. The AIE properties was established in the DMSO (as good solvent) and water (as a poor solvent) mixture with various water fraction ranging from 0 to 95 %. Moreover, TPE-2 material was successfully utilized in fingerprint visualization and in anti-counterfeiting technology. The AIEgen TPE-2 paves a new way in advanced forensic and data security applications.

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基于苯并[4,5]噻唑[3,2-a]嘧啶-3-碳腈融合四苯基乙烯的聚集诱导发射技术在潜在指纹可视化及防伪中的应用

潜在指纹的检测是法医学的重要一步。LFTs的可视化是研究犯罪现场和犯罪足迹的必要手段。在这方面，近年来聚集诱导发光（AIE）作为一种潜在的发光材料出现在指纹检测中。本文设计并成功合成了4-亚胺-2-（甲基硫）-8-（1,2,2-三苯基乙烯）- 4h -苯并[4,5]噻唑[3,2-a]嘧啶-3-碳腈（TPE-2）含- sch3供体和- cn受体的AIEgen亚基。研究了其光物理、光学和AIE性质。在DMSO（作为好溶剂）和水（作为差溶剂）的混合物中建立了AIE的性能，水的分数为0 ~ 95%。此外，TPE-2材料成功应用于指纹可视化和防伪技术。AIEgen TPE-2为先进的取证和数据安全应用铺平了新的道路。

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来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

期刊介绍： The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including: • Stable and unstable molecules in all types of environments (vapour, molecular beam, liquid, solution, liquid crystal, solid state, matrix-isolated, surface-absorbed etc.) • Chemical intermediates • Molecules in excited states • Biological molecules • Polymers. The methods used may include any combination of spectroscopic and non-spectroscopic techniques, for example: • Infrared spectroscopy (mid, far, near) • Raman spectroscopy and non-linear Raman methods (CARS, etc.) • Electronic absorption spectroscopy • Optical rotatory dispersion and circular dichroism • Fluorescence and phosphorescence techniques • Electron spectroscopies (PES, XPS), EXAFS, etc. • Microwave spectroscopy • Electron diffraction • NMR and ESR spectroscopies • Mössbauer spectroscopy • X-ray crystallography • Charge Density Analyses • Computational Studies (supplementing experimental methods) We encourage publications combining theoretical and experimental approaches. The structural insights gained by the studies should be correlated with the properties, activity and/ or reactivity of the molecule under investigation and the relevance of this molecule and its implications should be discussed.