East China University of Science and Technology

Suzhou Kunhuang New Material Technology Co.,ltd.

Weihong Zhu

Juan Li

Yao Lu

Zhigang Zheng

Chenxu Yan

Xiuyan Zhao

Huijun Li

Honglong Hu

Meiling Zhao

Yutao Zhang

Zhiqian Guo

The present disclosure discloses a novel multi-stable and erasable anti-counterfeiting technology with controlled reflection color and the application thereof in optical coding. The method and use are characterized by high thermal stability and robust fatigue resistance, and the realization thereof relies on the material system composed of an intrinsic chiral diarylethene molecule based on steric hindrance ethene bridge and a liquid crystal (LC) material disclosed herein. The diarylethene based on steric hindrance ethene bridge has the following structural feature: The material system composed of a diarylethene compound based on steric hindrance ethene bridge and an LC can be prepared by a simple preparation process from cheap raw materials, can achieve a wide spectral color adjustment range, and has excellent thermal stability and fatigue resistance, which is expected to be further widely used in the fields of dual erasable anti-counterfeiting and optical information encoding with high thermal stability and strong fatigue resistance.

Multi-stable and erasable anti-counterfeiting technology with controlled reflection color and application thereof in optical coding

A luminescent probe and its preparation method and application are provided. The luminescent probe has a steric hindrance group Rof aliphatic hydrocarbon structure such as adamantane or norborneol, a detection group Rof nitrobenzyl and its derivative structure, an electron-withdrawing group Rcontaining cyano group and an electron-donating group methoxy group. In the presence of HSA or BSA, the detection group is cut off to form a parent structure that exposes atomic oxygen anions and is activated under external light irradiation, the luminescent probe can be used in solution or cells, when detecting HSA or BSA, the luminescent probe has obvious chemiluminescence characteristics, which can sensitively distinguish HSA and BSA, quantitatively analyze HSA and BSA, and determine the mixing ratio of HSA and BSA at the same time, and the luminescent probe has been successfully used for cell fluorescence imaging.

Luminescent probe and its preparation method and application

Growing community of inventors

Shanghai, China

Weihong Zhu