Layer-by-Layer self-assembly of polyaspartate and Poly(ethyleneimine) on magnetic nanoparticles: Characterization and adsorption of protein

被引：21
|
作者：
Wang, Shixing [1 ,2 ]
Zhou, Yang [2 ]
Niu, Hua [1 ]
Zhang, Xuezhong [2 ]
机构：
[1] Yunnan Inst Prod Qual Supervis & Inspect, Kunming 650223, Peoples R China
[2] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China
来源：
CURRENT APPLIED PHYSICS | 2011年 / 11卷 / 06期
关键词：
Magnetic nanoparticles; Layer-by-Layer; Self-assembly; Protein; SITU ATR-FTIR; POLYELECTROLYTE MULTILAYERS; POLY(ACRYLIC ACID); SURFACE; DEPOSITION; RESONANCE; COATINGS; ALUMINA; RESIST;
D O I：
10.1016/j.cap.2011.03.073
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic nanoparticles (MNPs) were modified by polyaspartate (PAA) and poly(ethyleneimine) (PEI) via Layer-by-Layer self-assembly. Two steps were involved in: the first was to coat MNPs by PAA at pH 6; the second was to coat the former by PEI. The successful surface modification of MNPs was confirmed using X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and fourier transform infrared (FTIR) measurements. The modified MNPs interact strongly with negative fibrinogen and weakly with neutral gamma-globin and positive lysozyme. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1337 / 1342
页数：6
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