Single-atomic cobalt fused biomolecule-derived nitrogen-doped carbon nanosheets for selective oxidation reaction

2021 ◽  
Author(s):  
Miao Xia ◽  
Haitao Huang ◽  
Xuefei Zhang ◽  
Qiao-hua Wei ◽  
Zailai Xie
Keyword(s):  
Selective Oxidation ◽  
Noble Metal ◽  
Oxidation Reaction ◽  
Great Promise ◽  
Oxidation Reactions ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Single Atoms ◽  
Nitrogen Doped Carbon ◽  
Selective Oxidation Reactions

Non-noble metal single-atoms catalysts hold great promise in selective oxidation reactions, although the progress is still unsatisfied because of the synthetic challenge and the lack of mechanistic interpretations. Herein, we...

Nickel nanocrystal/nitrogen-doped carbon composites as efficient and carbon monoxide-resistant electrocatalysts for methanol oxidation reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (42) ◽  
pp. 21687-21694 ◽  
Author(s):  
Na Wu ◽  
Meixu Zhai ◽  
Fei Chen ◽  
Xue Zhang ◽  
Ruihong Guo ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Low Cost ◽  
Methanol Oxidation Reaction ◽  
Carbon Composites ◽  
Oxidation Reactions ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Cost Efficient ◽  
Nitrogen Doped Carbon

Owing to its facile synthesis, outstanding activity and high stability, Ni/N–C@500 composite is promising as a low-cost, efficient and CO-resistant electrocatalyst for methanol oxidation reaction (MOR).

A General Method for Transition Metal Single Atoms Anchored on Honeycomb‐Like Nitrogen‐Doped Carbon Nanosheets

2020 ◽  
Vol 32 (10) ◽  
pp. 1906905 ◽  
Author(s):  
Xiaoyan Zhang ◽  
Shan Zhang ◽  
Yong Yang ◽  
Liguang Wang ◽  
Zijie Mu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Single Atoms ◽  
Nitrogen Doped Carbon ◽  
General Method

scholarly journals Development of fluorescence/MR dual-modal manganese-nitrogen-doped carbon nanosheets as an efficient contrast agent for targeted ovarian carcinoma imaging

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Cuiping Han ◽  
Ting Xie ◽  
Keying Wang ◽  
Shang Jin ◽  
Ke Li ◽  
...  
Keyword(s):  
Ovarian Carcinoma ◽  
Colloidal Stability ◽  
The Body ◽  
Carcinoma Cells ◽  
Great Promise ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Ovarian Carcinoma Cells ◽  
Nitrogen Doped Carbon

Abstract Background Development of sensitive and specific imaging approaches for the detection of ovarian cancer holds great promise for improving the therapeutic efficacy and the lifespan of the patients. Results In this study, manganese-nitrogen doped carbon nanosheets (Mn-N-CNSs) coupled with Anti-HE4 monoclonal antibody (Mn-N-CNSs@Anti-HE4) were synthesized for the specific and targeted fluorescence/MR dual-modal imaging of ovarian carcinoma. The prepared Mn-N-CNSs revealed excellent aqueous dispersity, good colloidal stability, great optical properties and high longtudinal relaxivity rate (r1 = 10.30 mM−1 s−1). Encouraged by the tunable photoluminiscence of the nanoprobe and Anti-HE4 targeting ligand, the ovarian carcinoma cells were specifically labeled by the Mn-N-CNSs@Anti-HE4 nanoprobe with multi-color fluorescences. Benefiting from the high r1 relaxivity, the nanoprobe exhibited targeted and enhanced MR contrast effect in the ovarian carcinoma cells and tumor bearing mice model. Besides, the high biocompatibility and easy excretion from the body of the nanoprobe were further confirmed in vivo. Conclusion The prepared Mn-N-CNSs@Anti-HE4 with excellent biocompatibility, high-performance and superior tumor-targeting ability provides a novel fluorescence/MR dual-modal nanoprobe for specific labeling and detection of ovarian carcinoma cells in vitro and in vivo.

scholarly journals Development of fluorescence/MR dual-modal manganese-nitrogen-doped carbon nanosheets as an efficient contrast agent for targeted ovarian carcinoma imaging

2020 ◽  
Author(s):  
Cuiping Han
Keyword(s):  
Ovarian Carcinoma ◽  
Colloidal Stability ◽  
The Body ◽  
Carcinoma Cells ◽  
Great Promise ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Ovarian Carcinoma Cells ◽  
Nitrogen Doped Carbon

Abstract Background: Development of sensitive and specific imaging approaches for the detection of ovarian cancer holds great promise for improving the therapeutic efficacy and the lifespan of the patients. Results: In this study, manganese-nitrogen doped carbon nanosheets (Mn-N-CNSs) coupled with Anti-HE4 monoclonal antibody (Mn-N-CNSs@Anti-HE4) were synthesized for the specific and targeted fluorescence/MR dual-modal imaging of ovarian carcinoma. The prepared Mn-N-CNSs revealed excellent aqueous dispersity, good colloidal stability, great optical properties and high longtudinal relaxivity rate (r1 =10.30 mM-1s-1). Encouraged by the tunable photoluminiscence of the nanoprobe and Anti-HE4 targeting ligand, the ovarian carcinoma cells were specifically labeled by the Mn-N-CNSs@Anti-HE4 nanoprobe with multi-color fluorescences. Benefiting from the high r1 relaxivity, the nanoprobe exhibited targeted and enhanced MR contrast effect in the ovarian carcinoma cells and tumor bearing mice model. Besides, the high biocompatibility and easy excretion from the body of the nanoprobe were further confirmed in vivo. Conclusion: The prepared Mn-N-CNSs@Anti-HE4 with excellent biocompatibility, high-performance and superior tumor-targeting ability provides a novel fluorescence/MR dual-modal nanoprobe for specific labeling and detection of ovarian carcinoma cells in vitro and in vivo.

scholarly journals Development of Fluorescence/MR Dual-Modal Manganese-Nitrogen-Doped Carbon Nanosheets as An Efficient Contrast Agent for Targeted Ovarian Carcinoma Imaging

2020 ◽  
Author(s):  
Cuiping Han ◽  
Ting Xie ◽  
Keying Wang ◽  
Shang Jin ◽  
Ke Li ◽  
...  
Keyword(s):  
Ovarian Carcinoma ◽  
Colloidal Stability ◽  
The Body ◽  
Carcinoma Cells ◽  
Great Promise ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Ovarian Carcinoma Cells ◽  
Nitrogen Doped Carbon

Abstract Background: Development of sensitive and specific imaging approaches for the detection of ovarian cancer holds great promise for improving the therapeutic efficacy and the lifespan of the patients. Results: In this study, manganese-nitrogen doped carbon nanosheets coupled with Anti-HE4 monoclonal antibody (Mn-N-CNSs@Anti-HE4) were synthesized for the specific and targeted fluorescence/MR dual-modal imaging of ovarian carcinoma. The prepared Mn-N-CNSs@Anti-HE4 nanoprobe revealed excellent aqueous dispersity, good colloidal stability, great optical properties and high longtudinal relaxivity rate (r1 =10.30 mM-1s-1). Encouraged by the tunable photoluminiscence of the nanoprobe, the ovarian carcinoma cells were specifically labeled by the Mn-N-CNSs@Anti-HE4 nanoprobe with multi-color fluorescences (blue, green, red). Benefiting from the high r1 relaxivity, the nanoprobe exhibited targeted and enhanced MR contrast effect in the ovarian carcinoma cells and tumor bearing mice model. Besides, the high biocompatibility and easy excretion from the body of the nanoprobe were further confirmed in vivo. Conclusion: The prepared Mn-N-CNSs@Anti-HE4 with excellent biocompatibility, high-performance and superior tumor-targeting ability provides a novel fluorescence/MR dual-modal nanoprobe for specific labeling and detection of ovarian carcinoma cells in vitro and in vivo.

Cobalt single atoms anchored on nitrogen-doped porous carbon as an efficient catalyst for oxidation of silanes

2021 ◽  
Author(s):  
Fan Yang ◽  
Zhihui Liu ◽  
Xiaodong Liu ◽  
Andong Feng ◽  
Bing Zhang ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Noble Metal ◽  
Porous Carbon ◽  
Oxidation Reactions ◽  
Chemistry Industry ◽  
Efficient Catalyst ◽  
Nitrogen Doped ◽  
Noble Metal Catalysts ◽  
Single Atoms ◽  
Bulk Chemistry

The oxidation reactions of organic compounds are important transformations for the fine and bulk chemistry industry. However, they usually involve the employment of noble metal catalysts and suffer from toxic...

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