文献类型：期刊文献

英文题名：Screen-Printed Red Luminescent Copolymer Film Containing Cyclometalated Iridium(III) Complex as a High-Permeability Dissolved-Oxygen Sensor for Fermentation Bioprocess

作者：Jin, Pengwei[1,2];Guo, Zhiqian[1,2];Chu, Ju[1,2];Tan, Jun[1,2];Zhang, Siliang[1,2];Zhu, Weihong[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2013

卷号：52

期号：11

起止页码：3980

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20131416158595);WOS:【SCI-EXPANDED(收录号:WOS:000316594200005)】；

基金：The authors thank NSFC/China, National 973 Program (2013CB733700), Oriental Scholarship, National Major Scientific Technological Special Project (2012YQ15008709), Fundamental Research Funds for the Central Universities (WK1013002, WJ1114013), SRFDP 20120074110002, and Open Funding Project of the State Key Laboratory of Bioreactor Engineering for providing financial support to this project.

语种：英文

外文关键词：Phase separation - Dissolved oxygen - Iridium compounds - Semiconductor doping

摘要：The novel hydrophobic luminescent copolymer P(Ir-TFEMA) was developed as an online dissolved-oxygen (DO) sensor. The phosphorescent moiety of cyclometalated iridium(III) complex exhibits red emission near 650 nm with a large Stokes shift of about 245 nm and minimal optical interference from the fermentation system. The covalent incorporation of the chromophore into the polymeric matrix rather than physical doping was used to avoid phase-separation and leaching problems. The low molar ratio between the introduced chromophore and polymeric matrix within the range of 1:135-1:250 was confirmed to have little influence on the luminescence response ability. To assess its potential utility, this copolymer was applied to the online monitoring of DO during the cephalosporin C fermentation process. The screen-printing technique was utilized as a rapid and reliable automatic approach to preparing sensor films with good photostability and fatigue resistance, showing promise in bioprocess monitoring as a low-cost DO indicator for high-throughput microbioreactors.