State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Gansu, Lanzhou, 730000, China.
Beijing Key Laboratory for Magnetoelectric Materials and Devices (BKLMMD), Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT), Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China.
Angew Chem Int Ed Engl. 2018 Jun 4;57(23):6786-6790. doi: 10.1002/anie.201800119. Epub 2018 May 8.
Fingerprint fluorescence imaging has become one of the most prominent technologies in the field of forensic medicine, but it seldom considers the security protection of detection information, which is of great importance in modern society. Herein we demonstrate that luminescent Tb -carboxymethyl cellulose (CMC) complex binding aptamer hydrogels that are reversibly responsive to ClO /SCN can be used for the selective detection, protection, and storage of fingerprint information. The imaging information of the fingerprint can be quenched and recovered by ClO /SCN regulation, respectively, resulting in reversible on/off conversion of the luminescence signals for the encryption and decryption of multiple levels of information. The present study opens new avenues for multilevel imaging, data recording, and security protection of fingerprint information with tunable fluorescent hydrogels.
指纹荧光成像已成为法医学领域最突出的技术之一，但很少考虑到检测信息的安全保护，这在现代社会中至关重要。在这里，我们证明，对 ClO / SCN 具有可逆响应的发光 Tb-羧甲基纤维素（CMC）复合结合适体水凝胶可用于选择性检测、保护和存储指纹信息。指纹的成像信息可分别通过 ClO / SCN 调节进行猝灭和恢复，从而实现发光信号的可逆开/关转换，实现多层次信息的加密和解密。本研究为具有可调荧光水凝胶的指纹信息的多层次成像、数据记录和安全保护开辟了新途径。
