A non-enzymatic glucose sensor based on the composite of cubic Cu nanoparticles and arc-synthesized multi-walled carbon nanotubes.
A non-enzymatic glucose sensor based on the composite of cubic Cu nanoparticles and arc-synthesized multi-walled carbon nanotubes.
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DOI：
10.1016/j.bios.2013.02.032
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发表时间：
2013-09
影响因子：
12.6
通讯作者：
Jiang Zhao;Liangming Wei;C. Peng;Yanjie Su;Zhi Yang;Liying Zhang;Hao Wei;Yafei Zhang
中科院分区：
文献类型：
--
作者：
Jiang Zhao;Liangming Wei;C. Peng;Yanjie Su;Zhi Yang;Liying Zhang;Hao Wei;Yafei Zhang
采用基底增强化学沉积（SEED）方法，基于立方铜纳米粒子和电弧合成多壁碳纳米管（MWCNT）的复合材料制备了一种非酶葡萄糖传感器。普通的玻璃碳（GC）电极被含有丰富多壁碳纳米管的圆柱形沉积物作为支撑电极所取代。这些圆柱形沉积物可以通过低压空气气氛中的电弧放电来合成。 Cu-MWCNTs电极在0.1M NaOH碱性溶液中对葡萄糖的氧化表现出显着的电催化活性。对葡萄糖的电流响应表明，在1s内实现快速响应，灵敏度为922μAmM−1cm−2，在0.5–7.5mM浓度范围内具有较宽的线性，检测限为2.0μM。该传感器还表现出对葡萄糖的高稳定性和特异性。由于传感器制备简单，Cu-MWCNT 电极是可靠的葡萄糖测定的良好候选者。
A sort of non-enzymatic glucose sensor is fabricated based on a composite of cubic Cu nanoparticles and arc-synthesized multi-walled carbon nanotubes (MWCNTs) by using a substrate-enhanced electroless deposition (SEED) method. The common glassy carbon (GC) electrode is replaced by the cylindrical deposit that contains abundant MWCNTs as a support electrode. These cylindrical deposits can be synthesized by arc discharge in low pressure air atmosphere. The Cu-MWCNTs electrode shows significantly electrocatalytic activity to the oxidation of glucose in 0.1M NaOH alkaline solution. The amperometric responses to glucose reveal that the fast response achieves within 1s, the sensitivity is 922μAmM−1cm−2with a wide linear in the 0.5–7.5mM concentration range, and the detection limit is 2.0μM. The sensor also exhibits high stability and specificity to glucose. Due to the simplicity of the sensor preparation, Cu-MWCNTs electrodes are a good candidate for reliable glucose determination.