| 氧化锌纳米线阵列/泡沫石墨烯电化学检测左旋多巴 |
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| 引用本文： | 林轩宇, 张虹, 黄硕, 常靖, 高鑫, 姚龙辉, 岳红彦. 氧化锌纳米线阵列/泡沫石墨烯电化学检测左旋多巴[J]. 工程科学学报, 2016, 38(9): 1306-1311. DOI: 10.13374/j.issn2095-9389.2016.09.016 |
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| 作者姓名： | 林轩宇 张虹 黄硕 常靖 高鑫 姚龙辉 岳红彦 |
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| 作者单位： | 哈尔滨理工大学材料科学与工程学院,哈尔滨,150040;哈尔滨医科大学附属第一医院神经内科,哈尔滨,150001 |
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| 基金项目： | 黑龙江博士后科研启动基金资助项目(LBH-Q14117)黑龙江省自然科学基金资助项目(LC2015020)．黑龙江省自然科学基金资助项目(LC2015020)哈尔滨理工大学青年拔尖创新人才培养计划资助项目(201306) |
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| 摘 要： | 采用化学气相沉积法以泡沫镍为模板制备三维多孔网状泡沫石墨烯（GF）,利用水热法在其表面垂直生长氧化锌纳米线阵列（ZnO NWAs）,得到三维形貌的ZnO NWAs/GF复合材料.采用扫描电镜、透射电镜、X射线衍射、拉曼光谱等测试方法对该复合材料进行了表征.结果表明：制备的石墨烯层数较少且纯净无缺陷.ZnO NWAs垂直于三维GF表面且尺寸分布均匀.利用电化学方法用ZnO NWAs/GF检测左旋多巴（LD）.电化学测试结果表明,ZnO NWAs/GF在线性范围为0~80μmol·L-1内检测LD时,检测灵敏度为0.41μA·（μmol·L-1）-1,且具有良好的重复性和稳定性.在尿酸（UA）干扰下,ZnO NWAs/GF对检测LD有很好的选择性.
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| 关 键 词： | 石墨烯 氧化锌 纳米线阵列 纳米复合材料 左旋多巴 检测 生物传感器 |
| 收稿时间： | 2015-11-20 |
Electrochemical determination of levodopa using ZnO nanowire arrays/graphene foam |
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| LIN Xuan-yu, ZHANG Hong, HUANG Shuo, CHANG Jing, GAO Xin, YAO Long-hui, YUE Hong-yan. Electrochemical determination of levodopa using ZnO nanowire arrays/graphene foam[J]. Chinese Journal of Engineering, 2016, 38(9): 1306-1311. DOI: 10.13374/j.issn2095-9389.2016.09.016 |
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| Authors: | LIN Xuan-yu ZHANG Hong HUANG Shuo CHANG Jing GAO Xin YAO Long-hui YUE Hong-yan |
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| Affiliation: | 1. School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China;2. Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China |
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| Abstract: | A three-dimensional (3D), macroporous and highly conductive grapheme foam (GF) was synthesized by chemical vapor deposition using a nickel foam as a template. ZnO nanowire arrays were vertically grown on the surface of the prepared GF using hydrothermal synthesis. The morphologies and structure of the ZnO NWAs/GF were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and Raman spectroscopy. The results show that the prepared GF is high-quality and defect free, and the ZnO NWAs with uniform size vertically grows on the surface of 3D GF. The ZnO NWAs/GF was used as an elec-trochemical electrode for determining levodopa (LD). The results of electrochemical tests show that the oxidation current of LD is well linear with its concentration in the range of 0-80μmol·L-1 with a sensitivity of 0.41μA·(μmol·L-1)-1, and the ZnO NWAs/GF electrode also shows good reproducibility and stability. The ZnO NWAs/GF can detect LD with high selectivity in the presence of uric acid. |
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| Keywords: | graphene zinc oxide nanowire arrays nanocomposites levodopa determination biosensors |
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