Preparation of Photo-responsive DNA Supramolecular Hydrogels and Their Application as UV Radiometers  

作　　者：DING Yuqiao LI Yujie YANG Bo PAN Yufan CHENG Jiafeng MENG Siwen LIU Dongsheng XU Lijin DONG Yuanchen 

机构地区：[1]Department of Chemistry,Renmin University of China,Beijing,100872,P.R.China [2]Engineering Research Center of Advanced Rare Earth Materials,Ministry of Education,Department of Chemistry,Tsinghua University,Beijing,100084,P.R.China [3]CAS Key Laboratory of Colloid,Interface and Chemical Thermodynamics,Beijing National Laboratory for Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing,100190,P.R.China [4]University of Chinese Academy of Sciences,Beijing,100049,P.R.China

出　　处：《Chemical Research in Chinese Universities》2023年第1期115-120,共6页高等学校化学研究（英文版）

基　　金：supported by the Natural Science Foundation of Beijing Municipality,China (No.Z180016);the National Natural Science Foundation of China (No.21971248).

摘　　要：Ultraviolet light(UV)is an essential component of ambient light,but high dose UV would damage genome DNA.While semiconductors and soft materials have been employed to detect the UV,the complex process and the instrumental requirement have limited the application in daily life.In this study,taking advantage of sequence designability,a series of hydrogels with different gel-sol transition rates was constructed under the same UV intensity by introducing competing hybridization to tune the stability of the molecular network.Through estimating the transition time between each system under UV light irradiation,the intensity of UV could be roughly estimated,which provided a convenient method for the visual detection of UV.

关 键 词：Photo-responsive DNA hydrogel AZOBENZENE Gel-sol transition UV detection 

分 类 号：O64[理学—物理化学]