J Po lue ran sael od fo Mn aot te rai ad l jsu Cs ht emm ai rs gt ri yn sC
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ARTICLE
Journal Name
nanosheet sensor, in terms of the outstanding specificity and
multiplexed DNA detection.
Krishna, H. Li, S. Xiang, H. Wu, J. Li, W. Zhou and B. Chen,
DOI: 10.1039/C9TC02778E
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Conclusions
In summary, we have developed a facile method to construct
uniform, large-area, porous, and 2D metal-porphyrin
coordination nanosheets with precisely controllable layer
number on different substrates. Photoelectric conversion
technique was creatively used to probe the confinement of
guest (fullerene) in the pores of photoelectronically active Co-
TTPP nanosheets for the first time. The suitable pore size
cooperating with optimal layer number enables Co-TTPP
nanosheet to perform highly selective and sensitive
fluorescence detection of DNA. Ten-layer Co-TTPP nanosheet
In summary, we have developed a facile method to construct
uniform, large-area, porous, and 2D metal-porphyrin
coordination nanosheets with precisely controllable layer
number. Photoelectric conversion technique was creatively
used to probe the confinement of guest (fullerene) in the pores
of photoelectronically active Co-TTPP nanosheets for the first
time. The suitable pore size cooperating with optimal layer
number enables Co-TTPP nanosheet to perform highly selective
and sensitive fluorescence detection of DNA. Ten-layer Co-TTPP
nanosheet on quartz substrate exhibits not only an appealing
fluorescence DNA detection limitation but also the outstanding
specificity and multiplexed DNA detection. In particular, the
substrate-supported Co-TTPP nanosheet could be regarded as a
prototype sensor device towards rapid clinical diagnosis with
advantages of facile-operation and sensitive-detection,
representing a significant progress from a homogeneous
fluorescence DNA sensing platform based on MOF nanosheet to
a prominent heterogeneous sensing device. We hope that the
present work will stimulate more interests and further
application investigations of MOF nanosheets.
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Conflicts of interest
There are no conflicts to declare.
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Acknowledgements
Financial support from the Natural Science Foundation of China
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(
Nos. 21631003, 21805005, and 21773006), the Fundamental
Research Funds for the Central Universities (No. FRF-BD-17-
16A and FRF-TP-18-008B1), and University of Science and
0
Technology Beijing is gratefully acknowledged.
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