Information encryption with a high information-carrying capacity based on a stimulus-responsive hydrogen-bonded organic framework and a smartphone  

作　　者：Tianran Lin Chunsuo Tian Ying Sun Shendong Liu Di Wang Li Hou Shulin Zhao 

机构地区：[1]State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources,School of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Guilin 541004,China

出　　处：《Chinese Chemical Letters》2023年第5期393-396,共4页中国化学快报（英文版）

基　　金：financial support from the National Natural Science Foundation(No.22164005);the Natural Science Foundation of Guangxi(No.2022GXNSFAA035475);the Student Innovation Training Program(No.202110602062);the BAGUI Scholar Program。

摘　　要：Information-carrying capacity has become an important factor in the development of encryption and anti-counterfeiting.Herein,a hydrogen-bonded organic framework(HOF-PyTTA)was developed as novel anti-counterfeiting ink without rare metals and a smartphone-based APP was written for encryption and anti-counterfeiting.We found that the fluorescence of HOF-PyTTA can be quenched by Fe^(3+)ions and recovered by the addition of ascorbic acid.And the fluorescence of HOF-PyTTA can be enhanced by the increasing concentrations of ethanol.Based on these stimulus-response properties,four anti-counterfeiting models with gradually increased security were studied.Mode one was printed by HOFs ink and decrypted by UV light.Mode two was based on HOF-PyTTA and CsPbBr_(3)inks(or HOF-PyTTA-Fe^(3+))which are used to separately print the genuine and pirated information.A decryption reagent was applied to get the genuine information.Furthermore,we successfully construct a dynamic information encryption anti-counterfeiting model using a fluorescence array in combination with an information encryption anticounterfeiting APP.The circular array is printed by several concentrations of HOF-PyTTA ink and different RGB thresholds are set with the help of the information encryption anti-counterfeiting APP,to obtain distinct encrypted anti-counterfeiting information,thus accomplishing a high information-carrying capacity.

关 键 词：Hydrogen-bonded organic framework Fluorescence array SMARTPHONE ANTI-COUNTERFEITING Message encryption 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构] TQ638[自动化与计算机技术—计算机科学与技术]