Dendritic fibrous nano-silica supported gold nanoparticles as an artificial enzyme†,Journal of Materials Chemistry B

当前位置： X-MOL 学术 › J. Mater. Chem. B › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Dendritic fibrous nano-silica supported gold nanoparticles as an artificial enzyme†
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2018-02-19 00:00:00 , DOI: 10.1039/c8tb00310f
Rustam Singh _{1,

2,

3,

4} , Rajesh Belgamwar _{1,

2,

3,

4} , Mahak Dhiman _{1,

2,

3,

4} , Vivek Polshettiwar _{1,

2,

3,

4}

Affiliation

Mimicking enzymatic activity is a challenging task. Herein we report dendritic fibrous nano-silica (DFNS) supported gold (Au) nanoparticles (DFNS/Au) as a peroxidase like artificial enzyme. It showed a superior enzymatic activity in 3,5,3′,5′-tetramethylbenzidine (TMB) oxidation chosen as a model reaction, significantly higher than natural horseradish peroxidase (HRP) enzyme as well as other reported nanomaterial based artificial enzymes. A solvent dependent selectivity towards a two-electron oxidation product, TMB-diamine, has also been observed. This study clearly indicates the vital role of the fibrous morphology and unique silica channels of DFNS in the enhancement of the enzymatic activity.

中文翻译：

树枝状纤维状纳米二氧化硅负载的金纳米颗粒作为人工酶†

模仿酶活性是一项艰巨的任务。在这里，我们报告树突状纤维纳米二氧化硅（DFNS）负载的金（Au）纳米粒子（DFNS / Au）作为过氧化物酶，像人造酶一样。它在3,5,3'，5'-四甲基联苯胺（TMB）氧化中显示出优异的酶促活性，该氧化被选作模型反应，明显高于天然辣根过氧化物酶（HRP）酶以及其他已报道的基于纳米材料的人工酶。还观察到了对两电子氧化产物TMB-二胺的溶剂依赖性选择性。这项研究清楚地表明了DFNS的纤维形态和独特的二氧化硅通道在增强酶活性中的重要作用。

更新日期：2018-02-19

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11