A novel "turn-on" fluorescent sensor for hydrogen peroxide based on oxidized porous g-C 3 N 4 nanosheets

An oxidized, porous graphitic carbon nitride nanosheets (CNNs) was successfully obtained via a bottom-up approach. The inner filter effect (IFE) of Fe (III) tetrakis (1-methyl-4-pyridyl) porphyrin pentachlorideporphyrin pentachloride (FeTMPyP) on the CNNs results in fluorescence quenching of the CNN...

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Published in:Journal of biomedical materials research. Part B, Applied biomaterials Applied biomaterials, 2020-04, Vol.108 (3), p.1077-1084
Main Authors: Guo, Zhaoliang, Zhao, Qiannan, Zhang, Yuqian, Li, Bingdong, Li, Lijuan, Feng, Liwei, Wang, Manman, Meng, Xianguang, Zuo, Guifu
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Language:English
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cited_by cdi_FETCH-LOGICAL-c1016-d98bb3ed941d650212b7202a87f83bae3e55d8eb4d76d17a262a683794fdad493
cites cdi_FETCH-LOGICAL-c1016-d98bb3ed941d650212b7202a87f83bae3e55d8eb4d76d17a262a683794fdad493
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container_issue 3
container_start_page 1077
container_title Journal of biomedical materials research. Part B, Applied biomaterials
container_volume 108
creator Guo, Zhaoliang
Zhao, Qiannan
Zhang, Yuqian
Li, Bingdong
Li, Lijuan
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Wang, Manman
Meng, Xianguang
Zuo, Guifu
description An oxidized, porous graphitic carbon nitride nanosheets (CNNs) was successfully obtained via a bottom-up approach. The inner filter effect (IFE) of Fe (III) tetrakis (1-methyl-4-pyridyl) porphyrin pentachlorideporphyrin pentachloride (FeTMPyP) on the CNNs results in fluorescence quenching of the CNNs due to the overlap of FeTMPyP absorbance band and CNNs emission band. It is interesting that the quenched fluorescence could be "turned on" in response to the participation of H O , which caused by decomposition of FeMPyP. In this study, for the first time, a porous fluorescence probe based on CNNs and FeTMPyP was designed and an excellent H O detection performance with a large detection range of 0.1 ~ 100 μM and a detection limit of 0.07 μM was achieved. Furthermore, the proposed method was successfully used for H O detection in RAW 264.7 cells.
doi_str_mv 10.1002/jbm.b.34459
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title A novel "turn-on" fluorescent sensor for hydrogen peroxide based on oxidized porous g-C 3 N 4 nanosheets
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