An Imperata Cylindrical Flowers-Shaped Porous Graphene Microelectrode for Direct Electrochemistry of Glucose Oxidase
An Imperata Cylindrical Flowers-Shaped Porous Graphene Microelectrode for Direct Electrochemistry of Glucose Oxidase
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用于葡萄糖氧化酶直接电化学的白茅圆柱花形多孔石墨烯微电极
DOI：
10.1149/2.0251507jes
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发表时间：
2015
影响因子：
3.9
通讯作者：
L. T. Qu
中科院分区：
文献类型：
--
作者：
M. H. Ye;C. G. Hu;H. B. Shao;L. T. Qu
采用直接电化学组装和还原氧化石墨烯的方法，在直径为250 μm的铂丝上制备了一种新型的花朵状多孔活性石墨烯微电极。采用SEM、XRD和电化学技术对花状石墨烯微电极进行了表征。结果表明，花状石墨烯微电极为GOD的形成提供了良好的微环境。所制备的石墨烯微电极对GOD表现出优异的电子传递性能，其速率常数（ks）为2.18 s-1，并实现了GOD的直接电化学。值得注意的是，GOD@花形石墨烯微电极葡萄糖生物传感器在8.0-148.0 μM和148.0-430.6 μM两个线性范围内检测葡萄糖，灵敏度分别为267.34 μA mM− 1 cm− 2和38.15 μA mM− 1 cm− 2。该传感器具有较强的抗干扰性、稳定性和重现性，可用于葡萄糖的灵敏测定。它也将扩展到其他类似的酶和生物活性分子的各种生物和电化学应用。
A novel flowers-shaped porous active graphene microelectrode has been fabricated by directly electrochemical assembly and reduction of graphene oxide on platinum (Pt) wire with a diameter of 250 μm. The flowers-shaped graphene microelectrode was characterized by SEM, XRD and electrochemical techniques. Results showed that the flowers-shaped graphene microelectrode created a favorable microenvironment for the GOD. The as prepared graphene microelectrode exhibited excellent electron transfer properties for GOD with the rate constant (k s) of 2.18 s− 1 and achieved the direct electrochemistry of GOD. It is notable that the glucose biosensor of GOD@ flowers-shaped graphene microelectrode showed two linear ranges in 8.0–148.0 μM with the sensitivity of 267.34 μA mM− 1 cm− 2 and in 148.0–430.6 μM with the sensitivity of 38.15 μA mM− 1 cm− 2 for detecting glucose. Furthermore, the biosensor possessed strong anti-interference, remarkable stability and appreciable reproducibility for the sensitive determination of glucose. It would also be extended to other analogous enzymes and bioactive molecules for various biological and electrochemical applications.
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影响因子：
12.6
作者：
Shi, Jin;Zhang, Hangyu;Snyder, Alexandra;Wang, Mei-xian;Xie, Jian;Porterfield, D. Marshall;Stanciu, Lia A.
通讯作者：
Stanciu, Lia A.
影响因子：
6.6
作者：
Cuicui Qiu;Xia Wang;Xueying Liu;Shifeng Hou;Houyi Ma
通讯作者：
Cuicui Qiu;Xia Wang;Xueying Liu;Shifeng Hou;Houyi Ma
影响因子：
4.9
作者：
Cui, Peng;Lee, Junghyun;Lee, Hyoyoung
通讯作者：
Lee, Hyoyoung
DOI：
10.1016/j.msec.2009.09.001
发表时间：
2010-01-01
影响因子：
7.9
作者：
Kumar, S. Ashok;Cheng, Hui-Wen;Wang, Sea-Fue
通讯作者：
Wang, Sea-Fue
一种基于金纳米粒子修饰的铅纳米线上固定葡萄糖氧化酶的新型葡萄糖生物传感器
影响因子：
12.6
作者：
Wang, Huicai;Wang, Xinsheng;Chen, Qiang
通讯作者：
Chen, Qiang