Volume 42, Issue 14 pp. 1651-1658
Concise Report

Dynamically Securing the Data by 1O2 Sensitization of Fluorescent Composites with a High Latency and Uncrackable Features

Yuanyuan Chen

Yuanyuan Chen

College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350002 China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao West Road, Fuzhou, Fujian, 350002 China

These authors contributed equally to this work.

Search for more papers by this author
Jiamao Chen

Jiamao Chen

College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350002 China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao West Road, Fuzhou, Fujian, 350002 China

These authors contributed equally to this work.

Search for more papers by this author
Huacan Wu

Huacan Wu

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao West Road, Fuzhou, Fujian, 350002 China

University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049 China

Search for more papers by this author
Yifan Liu

Yifan Liu

College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350002 China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao West Road, Fuzhou, Fujian, 350002 China

Search for more papers by this author
Donghui Wang

Corresponding Author

Donghui Wang

College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350002 China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao West Road, Fuzhou, Fujian, 350002 China

University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049 China

E-mail: [email protected]Search for more papers by this author
Weiguo Huang

Weiguo Huang

College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350002 China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao West Road, Fuzhou, Fujian, 350002 China

University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049 China

Search for more papers by this author
First published: 22 March 2024
Citations: 1

Comprehensive Summary

Dynamic fluorescent materials play a crucial role in secure inks for data encryption; however, they are still plagued by issues such as photodegradation, poor latency, and susceptibility to unauthorized access. Herein, we propose a photochemically modulated dynamic fluorescent encryption system based on 1O2 sensitization of fluorescent composites, comprising a 1O2-sensitive fluorophore (F2) and non-emissive polymers. After UV irradiation, in-situ generated 1O2 from the polymer effectively binds with F2 to form endoperoxides (F2EPO), resulting in a significant redshift in emission, up to 150 nm. The 1O2 concentration is closely related to the irradiation time, rendering different fluorescent colors in a time-gated fashion. Moreover, the emission of F2EPO can be regulated by polymer chemical structure, molecular weight, and crosslinking density. Relying on these merits, we develop a dynamic data encryption method with various non-emissive polymers as the data storage media, UV light irradiation as the data encoder, and F2 as the data decoder. UV light irradiation of diverse polymer solutions generates 1O2 at different concentrations, effectively encoding the data, which remains invisible under both UV and natural lights. The addition of F2 to these irradiated polymer solutions produces different redshifted fluorescence, enabling secure data decryption. Attributing to the non-emissive nature of the polymers, time-gated readout fashion, excellent latency of 1O2, and subtle interactions between 1O2 and F2, this data encryption is nearly undecipherable. This work offers an advantage data encryption approach beyond the reach of conventional fluorophores.image

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.