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Self-powered photoelectrochemical biosensing platform based on Au NPs@ZnO nanorods array
  • ISSN号:2095-9389
  • 期刊名称:《工程科学学报》
  • 时间:0
  • 分类:TN215[电子电信—物理电子学] TB383[一般工业技术—材料科学与工程]
  • 作者机构:[1]State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China, [2]Key Laboratory of New Energy Materials and Technologies, University of Science and Technology Beijing, Beijing 100083, China
  • 相关基金:This work was supported by the National Major Research Program of China (No. 2013CB932602), the Program of Introducing Talents of Discipline to Universities (No. B14003), the National Natural Science Foundation of China (No. 51232001 and 51527802), Beijing Municipal Science & Technology Commission, the Fundamental Research Funds for the Central Universities.
中文摘要:

Photoanodes,它在 photoelectrochemical (PEC ) 被使用切开的水,被显示了在一个 PEC biosensing 平台的构造适用。这被用一个适当测试分子的氧化代替水氧化认识到。这里,我们表明了采用由为谷胱甘肽(GSH ) 的自我动力的 PEC bioanalysis 与 plasmonic 金牌 nanoparticles (Au NPs@ZnO NR ) 装饰在的锌氧化物 nanorods 数组组成的 photoanodes 的可行性缓冲磷酸盐盐(PBS ) 在 0 V 对 Ag/AgCl 的一个应用偏爱潜力。因为 Au/ZnO 接口的介绍,这 heterostructure 展出了提高的 PEC 性质。在可见轻照明下面,从在 Au NP 表面的表面电浆子回声(SPR ) 的热电子被注入邻近的 ZnO 并且随后开车到光阴极。在下面紫外(紫外) 轻照明,在 ZnO 的 photogenerated 电子趋于由于逐步的精力乐队结构和在 ZnO/ 电解质接口弯曲的向上的精力乐队转到做氟的符号的听氧化物。这些结果显示 plasmonic 金属 / 半导体 heterostructure photoanodes 为自我动力的 PEC bioanalysis 应用和另外的光电的烽火的扩大的地有大潜力。

英文摘要:

Photoanodes, which are used in photoelectrochemical (PEC) water splitting, have been shown to be applicable in the construction of a PEC biosensing platform. This was realized by replacing water oxidization with oxidation of an appropriate test molecule. Here, we have demonstrated the feasibility of adopting photoanodes consisting of zinc oxide nanorods arrays decorated with plasmonic gold nanoparticles (Au NPs@ZnO NRs) for the self-powered PEC bioanalysis of glutathione (GSH) in phosphate-buffered saline (PBS) at an applied bias potential of 0 V vs. Ag/AgCl. This heterostructure exhibited enhanced PEC properties because of the introduction of the Au/ZnO interface. Under visible light illumination, hot electrons from surface-plasmon resonance (SPR) at the Au NP surface were injected into the adjacent ZnO and subsequently driven to the photocathode. Under ultraviolet (UV) light illumination, the photogenerated electrons in ZnO tended to transfer to the fluorine-doped tin oxide due to the step-wise energy band structure and the upward energy band bending at the ZnO/ electrolyte interface. These results indicate that plasmonic metal/semiconductor heterostructure photoanodes have great potential for self-powered PEC bioanalysis applications and extended field of other photovoltaic beacons.

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期刊信息
  • 《工程科学学报》
  • 北大核心期刊(2011版)
  • 主管单位:中华人民共和国教育部
  • 主办单位:北京科技大学
  • 主编:张欣欣
  • 地址:北京市海淀区学院路30号
  • 邮编:100083
  • 邮箱:xuebaozr@ustb.edu.cn
  • 电话:010-62332875
  • 国际标准刊号:ISSN:2095-9389
  • 国内统一刊号:ISSN:10-1297/TF
  • 邮发代号:82-303
  • 获奖情况:
  • 首届国家期刊奖,第二届全国优秀科技期刊评比一等奖,全国高等学校自然科学学报系统优秀学报评比一等奖,中国期刊方阵“双高”期刊
  • 国内外数据库收录:
  • 日本日本科学技术振兴机构数据库,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:392