Superassembled MXene–carboxymethyl chitosan nanochannels for the highly sensitive recognition and detection of copper ions

Author:

Hu Xiaomeng1,Zhou Shan2,Zhang Xin1,Zeng Hui1,Guo Yaxin1,Xu Yeqing1,Liang Qirui13,Wang Jinqiang4,Jiang Lei5ORCID,Kong Biao16ORCID

Affiliation:

1. Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China

2. College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, P. R. China

3. Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266400, P. R. China

4. Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China

5. CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China

6. Yiwu Research Institute of Fudan University, Yiwu, Zhejiang 322000, P. R. China

Abstract

We demonstrate a freestanding MXene/carboxymethyl chitosan nanochannel (MXene/CMC) membrane by a simple super-assembly strategy, which can achieve highly sensitive and stable detection of Cu2+ ions with a limit of detection of 0.095 nM.

Funder

National Basic Research Program of China

National Natural Science Foundation of China

Fudan University

Yantai Science and Technology Bureau

Publisher

Royal Society of Chemistry (RSC)

Subject

Electrochemistry,Spectroscopy,Environmental Chemistry,Biochemistry,Analytical Chemistry

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