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Journal of Materials Science: Materials in Electronics

Preparation and adaptive optimization of disposable all-printed urea sensor

  • 21-07-2020
Published in:
Authors
Wang Xu
Xiaoping Yang
Yujie Zhao
Meiying Fan
Jun Liu
Peng Pan
Zhengchun Yang
Qiwen Bao
Luyang Jin
Zhenyu Liao
Published in
Journal of Materials Science: Materials in Electronics | Issue 17/2020

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Abstract

Urea is an important molecule in physiology and industry. The detection of urea by electrochemical sensors has broad application prospects in food detection and kidney disease screening. This paper introduces the preparation method of MWCNT/PANi electronic ink and its composite electrode, which was applied to the detection of urea. The linear range of the MWCNT/PANi composite electrode was increased by adjusting the concentration of MWCNT. The maximum linear range was 10 to 100 μM when 5.6 mg MWCNT was added. The sensitivity of the electrode was 2.435 \(\times\) 10−4 mA mM−1 cm−2 and the detection limit was 53.9 nM. At the same time, an algorithm was proposed to identify and analyze the data collected by the electrochemical workstation in view of the errors existing in the calculation of the electrochemical sensor when analyzing the optimal response voltage of the electrode. This method was used to set constraints and screen the optimal working voltage. Experimental results show that this method has certain advantages.

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previous article Photocatalytic activity of composites in an AgBr–Ag2CrO4 system prepared by a grinding method with and without washing
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Title
Preparation and adaptive optimization of disposable all-printed urea sensor
Authors
Wang Xu
Xiaoping Yang
Yujie Zhao
Meiying Fan
Jun Liu
Peng Pan
Zhengchun Yang
Qiwen Bao
Luyang Jin
Zhenyu Liao
Publication date
21-07-2020
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 17/2020
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-020-03977-5
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