Porphyrins and their derivatives have been extensively applied in various fields owing to their photophysical and electrochemical properties.However,the drawbacks of self-aggregation and self-quenching in aqueous medi...Porphyrins and their derivatives have been extensively applied in various fields owing to their photophysical and electrochemical properties.However,the drawbacks of self-aggregation and self-quenching in aqueous media limit their biological applications.Porphyrinic metal-organic frameworks(PMOFs)have attracted considerable attention because the introduction of porphyrins as organic linker into frameworks overcomes the limitations of free porphyrins.This review summarizes the strategies for the construction of PMOFs and their biological applications.The challenges and chances displayed by this class of emerging materials are also discussed.展开更多
Covalent organic frameworks （COFs） have been widely applied in gas capture and separation, but the fluorescent property of COFs with large n-conjugated system tends to be underexplored. Here we report the fluorescen...Covalent organic frameworks （COFs） have been widely applied in gas capture and separation, but the fluorescent property of COFs with large n-conjugated system tends to be underexplored. Here we report the fluorescent properties of several COFs including TaTa, DhaTab, TRITER- 1 and TzDa and the effect of metal ions of Na＋, Mg2＋, K＋, Ca2＋, Cu2＋, Zn2＋, Pb2＋, Ag＋, Cd2＋ and Fe3＋ on the fluorescence of these COFs. The results show that only Fe3＋ significantly quenched the fluorescence of the studied COFs. The possibility of the four COFs for selective sensing of Fe3＋ was demonstrated. The possible mechanism of the effect of Fe3＋ on the fluorescence of the COFs was based on the absorption competition quenching.展开更多
基金National Natural Science Foundation of China(21934002)Fundamental Research Funds for the Central Universities(JUSRP121005)Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province.
文摘Porphyrins and their derivatives have been extensively applied in various fields owing to their photophysical and electrochemical properties.However,the drawbacks of self-aggregation and self-quenching in aqueous media limit their biological applications.Porphyrinic metal-organic frameworks(PMOFs)have attracted considerable attention because the introduction of porphyrins as organic linker into frameworks overcomes the limitations of free porphyrins.This review summarizes the strategies for the construction of PMOFs and their biological applications.The challenges and chances displayed by this class of emerging materials are also discussed.
基金supported by the National Basic Research Program of China (2015CB932001)the National Natural Science Foundation of China (21775056, 21777074)+1 种基金the Fundamental Research Funds for Central Universities (JUSRP51714B)Open Funds of the State Key Laboratory of Electroanalytical Chemistry (SKLEAC201705)
文摘Covalent organic frameworks （COFs） have been widely applied in gas capture and separation, but the fluorescent property of COFs with large n-conjugated system tends to be underexplored. Here we report the fluorescent properties of several COFs including TaTa, DhaTab, TRITER- 1 and TzDa and the effect of metal ions of Na＋, Mg2＋, K＋, Ca2＋, Cu2＋, Zn2＋, Pb2＋, Ag＋, Cd2＋ and Fe3＋ on the fluorescence of these COFs. The results show that only Fe3＋ significantly quenched the fluorescence of the studied COFs. The possibility of the four COFs for selective sensing of Fe3＋ was demonstrated. The possible mechanism of the effect of Fe3＋ on the fluorescence of the COFs was based on the absorption competition quenching.
