Enhanced dSTORM imaging using fluorophores interacting with cucurbituril  

作　　者：Min Zhang Jing Gao Junling Chen Mingjun Cai Junguang Jiang Zhiyuan Tian Hongda Wang 

机构地区：[1]State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China [2]University of Chinese Academy of Sciences, Beijing 100049, China [3]School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Science China Chemistry》2016年第7期848-852,共5页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China(31330082,21373200,21525314);the Instrument Developing Project of the Chinese Academy of Sciences(YZ201455)

摘　　要：Advanced fluorescence microscopy including single-molecule localization-based super-resolution imaging techniques requires bright and photostable dyes orproteins asfluorophores.The photophysical properties of fluorophores have been proven to be crucial for super-resolution microscopy's localization precision and imaging resolution.Fluorophores TAMRA and Atto Rho6 G,which can interact with macrocyclic host cucurbit[7]uril(CB7) to form host-guest compounds,were found to improve the fluorescence intensity and lifetimes of these dyes.We enhanced the localization precision of direct stochastic optical reconstruction microscopy(dSTORM) by introducing CB7 into the imaging buffer,and showed that the number of photons as well as localizations of both TAMRA and Atto Rho6 G increase over 2 times.Advanced fluorescence microscopy including single-molecule localization-based super-resolution imaging techniques requires bright and photostable dyes or proteins as fluorophores. The photophysical properties of fluorophores have been proven to be crucial for super-resolution microscopy＇s localization precision and imaging resolution. Fluorophores TAMRA and Atto Rho6G, which can interact with macrocyclic host cucurbit[7]uril （CB7） to form host-guest compounds, were found to improve the fluorescence intensity and lifetimes of these dyes. We enhanced the localization precision of direct stochastic optical reconstruction microscopy （dSTORM） by introducing CB7 into the imaging buffer, and showed that the number of photons as well as localizations of both TAMRA and Atto Rho6G increase over 2 times.

关 键 词：super-resolution imaging CUCURBITURIL PHOTOPHYSICAL localization precision 

分 类 号：O621.22[理学—有机化学]