Cao Mengxin, Zhang Qiong, Tang Haifeng, Jin Baocheng, Zhang Yue, Wang Junjun, Liu Yan, Chen Xingxing, Zhou Hongping
School of Chemistry and Chemical Engineering, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, and Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials of Anhui Province, Anhui University, PR China.
School of Chemistry and Chemical Engineering, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, and Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials of Anhui Province, Anhui University, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2025 Dec 15;343:126469. doi: 10.1016/j.saa.2025.126469. Epub 2025 May 27.
It is very important to achieve high contrast latent fingerprints (LFPs) imaging in the face of challenges such as imaging blur, weak anti-background interference, and third-level detail loss. We construct a series of carbazole tripyridine zinc (II) complex probes (Zn-Kt1, Zn-Kt2 and Zn-Kt3) which can specifically identify oleic acid (OA) in LFPs, thus achieving high-quality LFPs imaging performance. These complexes exhibit high brightness and long-term imaging owing to three-photon AIE properties. Thanks to the excellent multi-photon excitation fluorescence characteristics of Zn-Kt1, the three-level details of LFP can be captured for high-resolution visualization. This work aims to provide a simple optical probe for rapid identification of personal information in criminal investigation activities.
面对成像模糊、抗背景干扰能力弱和三级细节丢失等挑战，实现高对比度潜指纹（LFP）成像非常重要。我们构建了一系列咔唑三联吡啶锌（II）配合物探针（Zn-Kt1、Zn-Kt2和Zn-Kt3），它们可以特异性识别LFP中的油酸（OA），从而实现高质量的LFP成像性能。由于具有三光子AIE特性，这些配合物表现出高亮度和长期成像能力。得益于Zn-Kt1出色的多光子激发荧光特性，可以捕获LFP的三级细节以进行高分辨率可视化。这项工作旨在提供一种简单的光学探针，用于在刑事调查活动中快速识别个人信息。
