Three-dimensional network films of electrospun copper oxide nanofibers for glucose determination
Three-dimensional network films of electrospun copper oxide nanofibers for glucose determination
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DOI：
10.1016/j.bios.2009.08.013
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发表时间：
2009-12-15
影响因子：
12.6
通讯作者：
Song, Wenbo
中科院分区：
文献类型：
--
作者：
Wang, Wen;Zhang, Lili;Song, Wenbo
首次展示了通过静电纺丝及后续热处理工艺制备的氧化铜纳米纤维（CuO - NFs）用于葡萄糖的非酶测定。通过透射电子显微镜（TEM）、扫描电子显微镜（SEM）和X射线衍射光谱（XRD）对CuO - NFs的结构和形貌进行了表征。利用不同的分散剂制备悬浮液，并详细研究了超声时间对薄膜电极制备的影响。通过循环伏安法（CV）和计时电流法（I - t）评估了对葡萄糖的检测性能。结果显示，在+0.40V的葡萄糖测定中，具有高灵敏度（431.3 μA mM⁻¹ cm⁻²）、快速响应（约1秒）、长期稳定性以及对电极污染的优异抗性。CuO - NFs薄膜电极对葡萄糖电氧化性能的提高归因于所制备的CuO - NFs具有高的表面积与体积比、复杂的孔隙结构、极长的长度以及固定后的优异三维网络结构。本研究结果表明，静电纺丝CuO - NFs是一种有前途的一维纳米材料，可用于进一步设计和微制造用于葡萄糖测定的生物电化学纳米器件。（C）2009爱思唯尔有限公司。保留所有权利。
Copper oxide nanofibers (CuO-NFs) prepared by electrospinning and subsequent thermal treatment processes were demonstrated for the first time for glucose non-enzymatic determination. The structures and morphologies of CuO-NFs were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray diffraction spectrum (XRD). Different dispersants were utilized for the suspension preparation and effects of ultrasonic time on the films electrode fabrication were investigated in detail. The assay performances to glucose were evaluated by cyclic voltammetry (CV) and chronoamperometry (I-t). Results revealed a high sensitivity (431.3 mu Am M-1 cm(-2)), fast response (about 1 s), long-term stability and excellent resistance towards electrode fouling in the glucose determination at +0.40V. The improved performances of CuO-NFs films electrode for electro-oxidation glucose were ascribed to the high surface-to-volume ratio, complex pore structure, extremely long length of the as prepared CuO-NFs, and the excellent three-dimensional network structure after immobilization. Results in this study suggest that electrospun CuO-NFs is a promising 1-D nanomaterial for further design and microfabrication of bioelectrochemical nanodevices for glucose determination. (C) 2009 Elsevier B.V. All rights reserved.