Enzymes immobilization on Fe3O4-gold nanoparticles

被引：38

作者：

Kalska-Szostko, B. ^{[1
]}

Rogowska, M. ^{[1
]}

Dubis, A. ^{[1
]}

Szymanski, K. ^{[2
]}

机构：

[1] Univ Bialystok, Inst Chem, PL-15399 Bialystok, Poland

[2] Univ Bialystok, Dept Phys, PL-15424 Bialystok, Poland

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 07期

关键词：

Magnetite; Magnetite-gold; Thiol modification; Enzyme immobilization; OXIDE COMPOSITE NANOPARTICLES; MAGNETITE NANOPARTICLES; MOSSBAUER;

D O I：

10.1016/j.apsusc.2011.10.132

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present study Fe3O4 magnetic nanoparticles were synthesized by coprecipitation of Fe2+ and Fe3+ from chlorides. In the next step magnetite-gold core-shell nanoparticles were synthesized from HAuCl4 using an ethanol as a reducing agent. Finally, magnetic nanoparticles were functionalized by hexadecanethiol. The immobilization of biological molecules (trypsin and glucose oxidase) to the thiol-modified and unmodified magnetite-gold nanoparticles surface was tested. The resulting nanoparticles were characterized by infrared spectroscopy, differential scanning calorimetry, Mossbauer spectroscopy and transmission electron microscopy. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2783 / 2787

页数：5

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