Low-cost electrochemical detection ofl-tyrosine using an rGO-Cu modified pencil graphite electrode and its surface orientation on a Ag electrode using anex situspectroelectrochemical method

Kavitha C.; Bramhaiah K.; John Neena S.

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Low-cost electrochemical detection ofl-tyrosine using an rGO-Cu modified pencil graphite electrode and its surface orientation on a Ag electrode using anex situspectroelectrochemical method

机译：使用ASEX SITUSPectro电化学方法使用Rgo-Cu改性的铅笔石墨电极及其表面取向对酪氨酸的低成本电化学检测

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A low cost reduced graphene oxide-copper hybrid nano thin-film modified Pencil Graphite Electrode has been employed to detect thel-tyrosine enantiomer. The free-standing rGO-Cu hybrid nano-thin film was prepared by a simple one-step liquid-liquid interface method. Electrochemical Cyclic Voltammetry, Differential Pulse Voltammetry, pH-dependent and scan rate dependent studies on bare PGE, Cu, rGO, and rGO-Cu forl-tyrosine have been explained in detail. The rGO-Cu modified PGE based biosensor exhibits good detection ofl-tyrosine. The linear range detection limit was estimated to be 1 x 10(-7)M. The calculated sensitivity is 0.4 mu A ppm(-1)mm(2). This electroactive biosensor is easily fabricated and controlled and is cost-effective. The surface orientation ofl-tyrosine on the Ag electrode at a particular potential and its comparison with vibrational DFT calculations have been studied for the first time.

机译：已经采用低成本的石墨烯氧化铜杂交纳米薄膜改性的铅笔石墨电极来检测酪氨酸对映体。通过简单的一步液 - 液界面方法制备独立的RGo-Cu混合纳米薄膜。已经详细解释了电化学循环伏安法，差分脉冲伏安法，pH依赖性和扫描速率研究，依赖于裸PGE，Cu，Rgo和Rgo-Cu Forl-酪氨酸。 RGO-Cu改性的PGE基生物传感器表现出良好的酪氨酸检测。线性范围检测限估计为1×10（-7）m。计算的灵敏度为0.4μppm（-1）mm（2）。这种电活性生物传感器易于制造和控制并且具有成本效益。首次研究了特定潜力的Ag电极上的酪氨酸的表面取向及其与振动DFT计算的比较。

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《RSC Advances》 |2020年第39期|共10页
作者
Kavitha C.; Bramhaiah K.; John Neena S.;
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VTU Ctr Adv Mat Res Dept Phys BMS Inst Technol Bengaluru 560064 Karnataka India;

Ctr Nano &

Soft Matter Sci Jalahalli Bangalore 560013 Bengaluru India;

Ctr Nano &

Soft Matter Sci Jalahalli Bangalore 560013 Bengaluru India;

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正文语种 eng
中图分类化学;
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1. Low-cost electrochemical detection ofl-tyrosine using an rGO-Cu modified pencil graphite electrode and its surface orientation on a Ag electrode using anex situspectroelectrochemical method [J] . Kavitha C., Bramhaiah K., John Neena S. RSC Advances . 2020,第39期

机译：使用ASEX SITUSPectro电化学方法使用Rgo-Cu改性的铅笔石墨电极及其表面取向对酪氨酸的低成本电化学检测
2. Preparation of a disposable and low-cost electrochemical sensor for propham detection based on over-oxidized poly(thiophene) modified pencil graphite electrode [J] . Ozcan Ali, Gurbuz Mustafa, Ozcan Ayca Atilir Talanta: The International Journal of Pure and Applied Analytical Chemistry . 2018,第期

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3. Highly selective electrochemical biosensor for the determination of folic acid based on DNA modified-pencil graphite electrode using response surface methodology [J] . Leila Mirmoghtadaie, Ali A. Ensafi, Mahdi Kadivar, Materials science & engineering . 2013,第3期

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4. Detection of riboflavin using DNA-modified electrochemically treated carbon nanotubes-pencil graphite electrode [C] . Ensafi Ali A., Heydari Esmaeil 2012 International Conference on Enabling Science and Nanotechnology . 2012

机译：DNA修饰的电化学处理的碳纳米管-铅笔石墨电极检测核黄素
5. Coated magnetic particles in electrochemical systems: Synthesis, modified electrodes, alkaline batteries, and paste electrodes. [D] . Unlu, Murat. 2008

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6. Carbon nanotube/polyurethane modified hollow fiber‐pencil graphite electrode for in situ concentration and electrochemical quantification of anticancer drugs Capecitabine and Erlotinib [O] . Zarrin Eshaghi, Fatemeh Moeinpour 2019

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7. Low-cost electrochemical detection of l-tyrosine using an rGO–Cu modified pencil graphite electrode and its surface orientation on a Ag electrode using an ex situ spectroelectrochemical method [O] . C. Kavitha, K. Bramhaiah, Neena S. John 2020

机译：利用出原位光谱电化学方法，使用RGO-Cu改性的铅笔石墨电极及其表面取向在AG电极上的低成本电化学检测

Low-cost electrochemical detection ofl-tyrosine using an rGO-Cu modified pencil graphite electrode and its surface orientation on a Ag electrode using anex situspectroelectrochemical method

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