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Self-Catalyzed, Self-Limiting Growth of Glucose Oxidase-Mimicking Gold Nanoparticles
文献类型：期刊论文
| 作者 | Luo, WJ ; Zhu, CF ; Su, S ; Li, D ; He, Y ; Huang, Q ; Fan, CH |
| 刊名 | ACS NANO
 |
| 出版日期 | 2010 |
| 卷号 | 4期号:12页码:8 |
| 关键词 | gold nanoparticles glucose oxidase self-limiting catalytic activity crystal growth |
| ISSN号 | 1936-0851 |
| 通讯作者 | Li, D (reprint author), Chinese Acad Sci, Phys Biol Lab, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China |
| 英文摘要 | Size and shape of nanoparticles are generally controlled by external influence factors such as reaction temperature, time, precursor, and/or surfactant concentration. Lack of external influence may eventually lead to unregulated growth of nanoparticles and possibly loss of their nanoscale properties. Here we report a gold nanoparticle (AuNPs)-based self-catalyzed and self-limiting system that exploits the glucose oxidase-like catalytic activity of AuNPs. We find that the AuNP-catalyzed glucose oxidation in situ produces hydrogen peroxide (H(2)O(2)) that induces the AuNPs seeded growth in the presence of chloroauric add (HAuCl(4)). This crystal growth of AuNPs is internally regulated via two negative feedback factors, size-dependent activity decrease of AuNPs and product (gluconic acid)-induced surface passivation, leading to a rapidly self-limiting system. Interestingly, the size, shape, and catalytic activities of AuNPs are simultaneously controlled in this system. We expect that it provides a new method for controlled synthesis of novel nanomaterials, design of "smart" self-limiting nanomedicine, as well as in-depth understanding of self-limiting systems in nature. |
| 学科主题 | Chemistry; Science & Technology - Other Topics; Materials Science |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000285449100051 |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/7041]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2004-2010年 |
| 推荐引用方式 GB/T 7714 | Luo, WJ,Zhu, CF,Su, S,et al. Self-Catalyzed, Self-Limiting Growth of Glucose Oxidase-Mimicking Gold Nanoparticles[J]. ACS NANO,2010,4(12):8. |
| APA | Luo, WJ.,Zhu, CF.,Su, S.,Li, D.,He, Y.,...&Fan, CH.(2010).Self-Catalyzed, Self-Limiting Growth of Glucose Oxidase-Mimicking Gold Nanoparticles.ACS NANO,4(12),8. |
| MLA | Luo, WJ,et al."Self-Catalyzed, Self-Limiting Growth of Glucose Oxidase-Mimicking Gold Nanoparticles".ACS NANO 4.12(2010):8. |
入库方式： OAI收割
来源：上海应用物理研究所
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