Development of AIEgen-montmorillonite nanocomposite powders for computer-assisted visualization of latent fingermarks
文献类型： 外文期刊
作者： Li, Jiawei 1 ; Jiao, Zhe 2 ; Zhang, Pengfei 3 ; Wan, Xuejuan 1 ; Song, Chao 7 ; Guo, Zongning 9 ; Huang, Xuelin 9 ; Tang, 1 ;
作者机构： 1.Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
2.Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Peoples R China
3.Dongguan Thonebio Co Ltd, Dongguan 523003, Peoples R China
4.Chinese Acad Sci, Shenzhen Engn Lab Nanomed & Nanoformulat, CAS HK Joint Lab Biomat,Inst Biomed & Biotechnol, Shenzhen Inst Adv Technol,Guangdong Key Lab Nanom, Shenzhen 518055, Peoples R China
5.Hong Kong Univ Sci & Technol, Hong Kong Branch, Chinese Natl Engn Res Ctr Tissue Restorat & Recon, Dept Chem,Dept Chem & Biol Engn, Clear Water Bay, Hong Kong, Peoples R China
6.HKUST Shenzhen Res Inst, 9 Yuexing 1st RD, Shenzhen 518057, Peoples R China
7.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Wuxi 214081, Jiangsu, Peoples R China
8.Minist Agr & Rural Affairs, Key Lab Control Qual & Safety Aquat Prod, Beijing 100125, Peoples R China
9.Integrated Technol Ctr Dongguan Entry Exit Inspec, Dongguan 523073, Peoples R China
期刊名称：MATERIALS CHEMISTRY FRONTIERS （ 影响因子：6.482； 五年影响因子：6.762 ）
ISSN：
年卷期： 2020 年 4 卷 7 期
页码：
收录情况： SCI
摘要： The forensic analysis of fingerprints is widely used to identify criminals and has become the basis of court evidence. In the work described in this paper, a new composite was developed for latent fingerprint (LFP) imaging; this composite was made by combining the aggregation-induced emission luminogen (AIEgen) salicylaldehyde azine (SAA) with montmorillonite (MMT). Gray value analysis and pattern recognition analysis based on MATLAB were conducted to evaluate the quality of the obtained LFP in comparison with the reference fingerprint obtained using Finger Reader. Due to the bright yellow solid-state emission of SAA and high absorptive capacity of MMT, details of fingermarks such as grooves and ridges were obtained at high resolution. We also obtained fluorescent fingerprint images in which second-level particulars were visualized with high quality, crucial for being able to carry out reliable personal identification. Besides, the composite was applied for LFPs on virtually all types of smooth substrates with high sensitivity and high efficiency. Compared with commercial fingerprint powder, AIEgen-based composites showed a higher degree of matching with reference fingerprints. In addition to SAA, two other AIEgens were also applied for LFP imaging and showed high resolution. The results showed that the AIEgens can serve as an alternative fluorescent material to commercial fluorescent materials used for LFP imaging.
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