title: Conjugated Polymer-Based Hybrid Materials for Turn-On Detection of CO2 in Plant Photosynthesis.
abstract: Detection of carbon dioxide (CO2) is of fundamental importance in diverse applications ranging from environmental analysis to agricultural production. In this work, a hybrid probe based on guanidinium-pendent oligofluorene (G-OF) and water-soluble conjugated polythiophene (PTP) has been developed for the turn on detection of CO2 with low background signal, taking advantage of the efficient fluorescence quenching of the tight aggregate of G-OF/PTP. In the presence of CO2, the electrostatic repulsion between G-OF and PTP can be effectively enhanced through protonation of the side chains, leading to the disaggregation and thus the "turn-on" fluorescence. The strategy allows for the light-up visible detection of CO2 with high sensitivity. Importantly, this system is capable of sensitively monitoring the concentration changes of CO2 in the process of the photosynthesis, which represents a concept to monitor the photosynthesis based on water-soluble conjugated polymers.
authors.affiliation: School of Materials Science and Engineering, Hebei University of Technology , Tianjin 300401, P.R. China.|Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
authors.forename: Hongbo
authors.initials: H
authors.lastname: Yuan
authors.affiliation: Institute of Biophysics, Hebei University of Technology , Tianjin 300401, P.R. China.
authors.forename: Yibing
authors.initials: Y
authors.lastname: Fan
authors.affiliation: Institute of Biophysics, Hebei University of Technology , Tianjin 300401, P.R. China.
authors.forename: Chengfen
authors.initials: C
authors.lastname: Xing
authors.affiliation: Institute of Biophysics, Hebei University of Technology , Tianjin 300401, P.R. China.
authors.forename: Ruimin
authors.initials: R
authors.lastname: Niu
authors.affiliation: School of Materials Science and Engineering, Hebei University of Technology , Tianjin 300401, P.R. China.
authors.forename: Ran
authors.initials: R
authors.lastname: Chai
authors.affiliation: School of Materials Science and Engineering, Hebei University of Technology , Tianjin 300401, P.R. China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhan
authors.affiliation: Institute of Biophysics, Hebei University of Technology , Tianjin 300401, P.R. China.
authors.forename: Junjie
authors.initials: J
authors.lastname: Qi
authors.affiliation: Institute of Biophysics, Hebei University of Technology , Tianjin 300401, P.R. China.
authors.forename: Hailong
authors.initials: H
authors.lastname: An
authors.affiliation: Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
authors.forename: Jialiang
authors.initials: J
authors.lastname: Xu
mesh_terms: D015374:Biosensing Techniques / Q000379:methods; D002245:Carbon Dioxide / Q000032:analysis* / Q000378:metabolism; D005449:Fluorenes / Q000737:chemistry*; D005453:Fluorescence; D019791:Guanidine / Q000031:analogs & derivatives*; D008958:Models, Molecular; D010788:Photosynthesis; D011108:Polymers / Q000737:chemistry*; D012995:Solubility; D013050:Spectrometry, Fluorescence / Q000379:methods; D055672:Static Electricity; D013876:Thiophenes / Q000737:chemistry*; D014867:Water / Q000737:chemistry; D003313:Zea mays / Q000737:chemistry / Q000502:physiology*
chemical_list: D005449:Fluorenes; D011108:Polymers; D013876:Thiophenes; D014867:Water; D002245:Carbon Dioxide; C066730:polythiophene; C041509:fluorene; D019791:Guanidine