葡萄糖在铂化类金刚石薄膜电极上的氧化行为

doi:10.3724/SP.J.1077.2010.01325

无机材料学报 ›› 2010, Vol. 25 ›› Issue (12): 1325-1329.DOI: 10.3724/SP.J.1077.2010.01325 CSTR: 32189.14.SP.J.1077.2010.01325

葡萄糖在铂化类金刚石薄膜电极上的氧化行为

赵海新^1,2, 刘爱萍^1,2, 仇旭^1,2, 沈国先²

(1. 浙江理工大学物理系光电材料与器件中心, 先进纺织材料与制备技术教育部重点实验室, 杭州 310018; 2. 浙江省新型纺织品研发重点实验室, 浙江纺织服装科技有限公司, 杭州 310009)

收稿日期:2010-03-22 修回日期:2010-06-07 出版日期:2010-12-20 网络出版日期:2010-11-24
基金资助:
国家自然科学基金(50902123); 浙江省教育厅科研项目(Y200806012); 浙江省新型纺织品研发重点实验室对外开放基金
(2009FZD003); 先进纺织材料与制备技术教育部重点实验室(浙江理工大学)优秀青年人才培养基金(2009QN02)

Oxidation Behavior of Glucose on Platinized Diamond-like Carbon Film Electrode

ZHAO Hai-Xin ^1,2, LIU Ai-Ping ^1,2, QIU Xu ^1,2, SHEN Guo-Xian²

(1. Department of Physics, Center for Optoelectronics Materials and Devices, Zhejiang Sci-Tech University; Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-tech University), Ministry of Education, Hangzhou 310018, China; 2. Zhejiang Province New Textile Research & Development Emphasised Laboratory, Zhejiang Textile & Garment Science & Technology Co., Ltd., Hangzhou 310009,China)

Received:2010-03-22 Revised:2010-06-07 Published:2010-12-20 Online:2010-11-24
Supported by:
National Natural Science Foundation of China (50902123); The Scientific Research Fund of Zhejiang Provincial Education Department (Y200806012); The Open Foundation of Zhejiang Province New Textile Research & Development Emphasised Laboratory (2009FZD003); The Excellent Young Talents Foundation of Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-tech University) (2009QN02)

摘要/Abstract

摘要： 采用磁控溅射技术共溅射石墨靶和铂靶, 制备铂化类金刚石(DLC-Pt)薄膜. 利用X射线光电子能谱和激光拉曼光谱表征DLC-Pt薄膜的成分和微观结构, 采用循环伏安法研究葡萄糖在DLC-Pt薄膜表面的氧化行为. 结果表明, DLC-Pt薄膜中有更多的sp²杂化碳原子, 铁氰化钾在DLC-Pt薄膜表面的氧化还原反应受扩散控制. 葡萄糖在-0.8V的电位下发生氧化反应, 且在这个电位下葡萄糖的氧化信号不受尿素和抗坏血酸氧化信号的干扰. 葡萄糖氧化电流和其浓度在2~22 mmol/L的范围内呈线性关系. 因此DLC-Pt薄膜有望用做葡萄糖传感器检测血液中葡萄糖的浓度.

关键词: 磁控溅射, 铂化类金刚石, 葡萄糖传感器, 催化活性

Abstract: In order to improve the electrochemical activity of conductive diamond-like carbon(DLC) film, platinized DLC (DLC-Pt) film was prepared by magnetron co-sputtering of graphite and platinum targets. The compositions and microstructures of DLC-Pt film were investigated by X-ray photoelectron spectroscope and Raman spectroscope, and the oxidation behaviors of glucose at the DLC-Pt film surface were examined by cyclic voltammetry. The results indicate that DLC-Pt film has more sp² carbon atoms compared with DLC film, and the redox reaction of K₃Fe(CN)₆on the DLC-Pt film electrode is controlled by diffusion. The glucose oxidation starts at about -0.8 V on the DLC-Pt film surface without interference from urea and ascorbic acid. A linear detection range of glucose obtained on the DLC-Pt electrode is identified from 2 mmol/L to 22 mmol/L (covering blood glucose levels in diabetic patients). So the DLC-Pt film has potential application to be a glucose sensor for blood glucose defection.

Key words: magnetron sputtering, platinized diamond-like carbon (DLC-Pt), glucose sensor, catalytic activity

中图分类号:

O646

赵海新, 刘爱萍, 仇旭, 沈国先. 葡萄糖在铂化类金刚石薄膜电极上的氧化行为[J]. 无机材料学报, 2010, 25(12): 1325-1329.

ZHAO Hai-Xin, LIU Ai-Ping, QIU Xu, SHEN Guo-Xian. Oxidation Behavior of Glucose on Platinized Diamond-like Carbon Film Electrode[J]. Journal of Inorganic Materials, 2010, 25(12): 1325-1329.

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葡萄糖在铂化类金刚石薄膜电极上的氧化行为

Oxidation Behavior of Glucose on Platinized Diamond-like Carbon Film Electrode

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