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Nano Research 2021, 14(5): 1335-1343 https://doi.org/10.1007/s12274-020-3176-z
Research Article | Issue | Published: 17 November 2020

Hierarchical porous carbon heterojunction flake arrays derived from metal organic frameworks and ionic liquid for H2O2 electrochemical detection in cancer tissue

Show Author's Information Yan Zhang1,  Qiying Lv1,  Kai Chi2,  Qilin Li1,  Huiling Fan1,  Bo Cai1,  Fei Xiao2( ),  Shuai Wang2( ),  Zheng Wang1( ),  Lin Wang( )
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Keywords:
carbon heterojunction structure, hierarchical flake arrays, heteroatoms doping, electrochemical sensor, cancer biomarker detection
Topics:
DiseasesDoping (additives)ElectrocatalystsHeterojunctionsMetalsNanostructured materialsOrganic frameworks Organic polymersOrganometallicsPorous materialsTissue
Cite this article:
Zhang Y, Lv Q, Chi K, et al. Hierarchical porous carbon heterojunction flake arrays derived from metal organic frameworks and ionic liquid for H2O2 electrochemical detection in cancer tissue. Nano Research, 2021, 14(5): 1335-1343. https://doi.org/10.1007/s12274-020-3176-z
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Abstract Full text Electronic supplementary material About this article

The development of hierarchical nanostructure is demonstrated as an effective strategy to improve catalytic activity and stability of electrocatalysts. Herein, a novel leaf-like hierarchically porous heterojunction flake arrays (FAs), integrated graphitic N-doped carbon (NC) with amorphous B,N-doped carbon (BNC), has been designed and grown on flexible carbon fiber (CF) using metal-organic framework (MOF) FAs and green ionic liquids as precursors. The hierarchical heterojunction structure possesses micro- and nano-scaled pores, large surface areas, and exposed high-density catalytic active sites, which enhances electronic conductivity and offers accessible transport channels for effectively decreasing mass transport resistance. The results of discrete Fourier transform (DFT) calculations and experiments also suggest that the catalytic activity has been promoted by the heterojunction structure through narrowing the banding gap. Consequently, the resultant nanohybrid microelectrode exhibits remarkable electrochemical sensing performance towards H2O2 with a low detection limit of 50 nM, and a high sensitivity of 213 μA·mM-1·cm-2, as well as good anti-interference capability. The practical application of nanohybrid fiber microelectrode has been explored by real-time monitoring H2O2 released from live colon cells and surgically-resected fresh colon cancer tissue, which can provide important information for the identification of different types of cells as well as distinguish cancer cells from normal ones. We believe this research will pave the way towards the development of advanced carbon nanomaterials for application in the fields of electrochemistry, biosensing, and cancer diagnosis.


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Electronic supplementary material
About this article

Hierarchical porous carbon heterojunction flake arrays derived from metal organic frameworks and ionic liquid for H2O2 electrochemical detection in cancer tissue

Show Author's information Yan Zhang1, Qiying Lv1, Kai Chi2, Qilin Li1, Huiling Fan1, Bo Cai1, Fei Xiao2( ), Shuai Wang2( ), Zheng Wang1( ), Lin Wang( )
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Abstract

The development of hierarchical nanostructure is demonstrated as an effective strategy to improve catalytic activity and stability of electrocatalysts. Herein, a novel leaf-like hierarchically porous heterojunction flake arrays (FAs), integrated graphitic N-doped carbon (NC) with amorphous B,N-doped carbon (BNC), has been designed and grown on flexible carbon fiber (CF) using metal-organic framework (MOF) FAs and green ionic liquids as precursors. The hierarchical heterojunction structure possesses micro- and nano-scaled pores, large surface areas, and exposed high-density catalytic active sites, which enhances electronic conductivity and offers accessible transport channels for effectively decreasing mass transport resistance. The results of discrete Fourier transform (DFT) calculations and experiments also suggest that the catalytic activity has been promoted by the heterojunction structure through narrowing the banding gap. Consequently, the resultant nanohybrid microelectrode exhibits remarkable electrochemical sensing performance towards H2O2 with a low detection limit of 50 nM, and a high sensitivity of 213 μA·mM-1·cm-2, as well as good anti-interference capability. The practical application of nanohybrid fiber microelectrode has been explored by real-time monitoring H2O2 released from live colon cells and surgically-resected fresh colon cancer tissue, which can provide important information for the identification of different types of cells as well as distinguish cancer cells from normal ones. We believe this research will pave the way towards the development of advanced carbon nanomaterials for application in the fields of electrochemistry, biosensing, and cancer diagnosis.

Keywords: carbon heterojunction structure, hierarchical flake arrays, heteroatoms doping, electrochemical sensor, cancer biomarker detection

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Publication history
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Acknowledgements

Publication history

Received: 01 July 2020
Revised: 03 October 2020
Accepted: 11 October 2020
Published: 17 November 2020
Issue date: May 2021

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature

Acknowledgements

This work is supported by the National Natural Science Foundation of China (Nos. 81572866, 81773104, 81773263, 81873931, and 81974382), the China Postdoctoral Science Foundation (No. 2019M652617), and the National Key Basic Research Program of China (No. 2015CB5540007).

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