CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Self-Catalyzed, Self-Limiting Growth of Glucose Oxidase-Mimicking Gold Nanoparticles
Luo, WJ; Zhu, CF; Su, S; Li, D; He, Y; Huang, Q; Fan, CH; Li, D (reprint author), Chinese Acad Sci, Phys Biol Lab, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2010
Source PublicationACS NANO
ISSN1936-0851
Volume4Issue:12Pages:8
AbstractSize 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.
KeywordGold Nanoparticles Glucose Oxidase Self-limiting Catalytic Activity Crystal Growth
Subject AreaChemistry ; Science & Technology - Other Topics ; Materials Science
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000285449100051
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/7041
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorLi, D (reprint author), Chinese Acad Sci, Phys Biol Lab, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
Recommended Citation
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.,...&Li, D .(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.
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