|
|
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与，应助指数 +1
cuifj: 金币+15, ★★★★★最佳答案, 非常感谢 2016-01-07 16:37:05
sunshan4379: LS-EPI+1, 感谢应助！ 2016-01-07 16:37:57
Prussian blue modified metal-organic framework MIL-101(Fe) with intrinsic peroxidase-like catalytic activity as a colorimetric biosensing platform
作者:Cui, FJ (Cui, Fengjuan)[ 1 ] ; Deng, QF (Deng, Qingfang)[ 1 ] ; Sun, L (Sun, Li)[ 1 ]
RSC ADVANCES
卷: 5
期: 119
页: 98215-98221
DOI: 10.1039/c5ra18589k
出版年: 2015
查看期刊信息
摘要
In this paper, a nanosized porous PB/MIL-101(Fe), was facilely prepared with a uniform octahedral structure by growing Prussian blue (PB) on the microporous metal-organic framework MIL-101(Fe), and confirmed by cyclic voltammogram (CV), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. It was demonstrated to possess intrinsic peroxidase-like activity and could catalytically oxidize 3,3',5,5'-tetramethylbenzidine (TMB), o-phenylenediamine (OPD), and 2,2'-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (AzBTS) by H2O2 in solution to produce a typical colour change. As a novel peroxidase mimic material, PB/MIL-101(Fe) shows high catalytic efficiency. Kinetic analysis of as the as-prepared PB/MIL-101(Fe) was studied, and it gave a linear absorbance response from 2.40 mu M to 100 mu M with a limit of detection (LOD) of 0.15 mu M. It indicated that the catalytic behavior was consistent with typical Michaelis-Menten kinetics and follows a ping-pong mechanism. Interestingly, the K-m values for PB/MIL-101( Fe) with respect to TMB and H2O2 is 0.127 and 0.0580 mM were lower than those of MIL-101(Fe) (0.490 and 0.620 mM for TMB and H2O2), respectively. This is probably attributed to more active sites and the pores of the PB/MIL-101(Fe) for peroxidase substrates. More importantly, it can be easily functionalized with different compounds including silica coating (TEOS), 3-aminopropyltriethoxysilane (APTES), polyethylene glycol (PEG) or folic acid (FA) to make it biocompatible. The results reveal that the stability, ease of production and versatility of PB/MIL-101(Fe) nanoparticles could result in them being used as a promising tool for cancer cell detection. With these findings, a simple and sensitive colorimetric biosensing platform has been established.
关键词
KeyWords Plus:HORSERADISH-PEROXIDASE; CARBON NANOTUBES; NANOPARTICLES; GLUCOSE; ENZYME; FUNCTIONALIZATION; LUMINESCENCE; PERFORMANCE; MIL-53(FE); CHEMISTRY
作者信息
通讯作者地址: Cui, FJ (通讯作者)
[显示增强组织信息的名称] Qiqihar Univ, Coll Chem & Chem Engn, Qiqihar 161006, Peoples R China.
地址:
[显示增强组织信息的名称] [ 1 ] Qiqihar Univ, Coll Chem & Chem Engn, Qiqihar 161006, Peoples R China
电子邮件地址:cxf234@126.com
基金资助致谢
基金资助机构 授权号
National Basic Research Program of China
2011CB935700
Postdoctoral Scientific Research Developmental Fund
LBH-Q14158
Program for Yong Teachers Scientific Research in Qiqihar University
2014k-Z07
查看基金资助信息
出版商
ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
类别 / 分类
研究方向:Chemistry
Web of Science 类别:Chemistry, Multidisciplinary
文献信息
文献类型:Article
语种:English
入藏号: WOS:000365403000040
ISSN: 2046-2069
期刊信息
目录： Current Contents Connect®
Impact Factor (影响因子): Journal Citation Reports®
其他信息
IDS 号: CX0QZ
Web of Science 核心合集中的 "引用的参考文献": 51
Web of Science 核心合集中的 "被引频次": 0 |
|
回复此楼