Electrochemical sensor for amino acids and glucose based on glassy carbon electrodes modified with multi-walled carbon nanotubes and copper microparticles dispersed in polyethylenimine
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- 作者：Fabiana A. Gutierrez ; Marí ; a D. Rubianes ; Gustavo A. Rivas ; grivas@fcq.unc.edu.ar" class="auth_mail" title="E-mail the corresponding author
- 关键词：Carbon nanotubes ; Polyethylenimine ; Copper ; Amino acids ; Glucose ; Electrochemical sensor ; Hystidine ; Serine ; Cysteine
- 刊名：Journal of Electroanalytical Chemistry
- 出版年：2016
- 出版时间：15 March 2016
- 年：2016
- 卷：765
- 期：Complete
- 页码：16-21
- 全文大小：1239 K
文摘
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The integration of CNT, PEI and Cu allows the robust deposition at GCE.
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The complex formation between amino acids and Cu facilitates the dissolution of Cu.
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GCE/CNT–Cu-PEI allows the detection of electroactive and non-electroactive amino acids.
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Amino acids quantification can be done at low potential and physiological pH.
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The presence of Cu and CNT allows the sensitive amperometric detection of glucose.