Preparation,characterization and SRXPS study of polyvinyl alcohol modified Fe<sub>3</sub>O<sub>4</sub> nanoparticles

LI Ming~1 WANG Bing~1 LIU Hui~2 KANG Yanjie~3 KUI Rexi~4 FENG Weiyue~1 1

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Preparation,characterization and SRXPS study of polyvinyl alcohol modified Fe₃O₄ nanoparticles

更新时间：2021-03-05

- Preparation,characterization and SRXPS study of polyvinyl alcohol modified Fe₃O₄ nanoparticles
- NUCLEAR TECHNIQUES Vol. 34, Issue 5, (2011)
- 作者机构：
  
  1. 中国科学院高能物理研究所纳米生物效应与安全性重点实验室和核分析技术重点实验室
  2. 烟台大学环境与材料工程学院
  3. 郑州大学化学系
  4. 中国科学院高能物理研究所同步辐射实验室
- 作者简介：
- 基金信息：
  
  国家重点基础研究发展计划(973计划)项目(2011CB933400);国家自然科学基金(10905064,10975148,20805048);中国科学院重要方向性项目(KJCX3.SYW.N3)资助
- DOI：
  CLC： TB383.1
- Published：01 May 2011
- 稿件说明：
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[1]李明,汪冰,刘慧,康艳杰,奎热西,丰伟悦.聚乙烯醇修饰Fe_3O_4纳米颗粒的制备表征及同步辐射X射线光电子能谱研究[J].核技术,2011,34(05):331-335.

LI Ming~1 WANG Bing~1 LIU Hui~2 KANG Yanjie~3 KUI Rexi~4 FENG Weiyue~1 1. Preparation,characterization and SRXPS study of polyvinyl alcohol modified Fe₃O₄ nanoparticles[J]. Nuclear techniques, 2011, 34(5): 331-335.
[1]李明,汪冰,刘慧,康艳杰,奎热西,丰伟悦.聚乙烯醇修饰Fe_3O_4纳米颗粒的制备表征及同步辐射X射线光电子能谱研究[J].核技术,2011,34(05):331-335. DOI：

LI Ming~1 WANG Bing~1 LIU Hui~2 KANG Yanjie~3 KUI Rexi~4 FENG Weiyue~1 1. Preparation,characterization and SRXPS study of polyvinyl alcohol modified Fe₃O₄ nanoparticles[J]. Nuclear techniques, 2011, 34(5): 331-335. DOI：

摘要

采用水溶性高分子聚合物聚乙烯醇（PVA）对Fe

纳米颗粒表面进行功能化修饰

利用透射电镜（TEM）、紫外可见吸收光谱（UV-vis）、Zeta电位检测、电感耦合等离子体质谱（ICP-MS）和热重分析（TGA）

对包被前后Fe

的粒径、分散稳定性、PVA的包覆效率及纳米颗粒进入细胞的量进行了表征研究。通过同步辐射X射线光电子能谱技术（SRXPS）对修饰前后的Fe

表面的化学组分、表面原子的化学结构、化学键合情况进行了定性分析

给出了PVA与Fe

纳米颗粒作用的反应机理。结果表明

PVA修饰后的Fe

在溶液中稳定分散的时间大大延长

且进入细胞的量明显增多。SRXPS分析证明

PVA大分子链上的-OH功能团与纳米粒子表面富含的-OH功能团通过氢键的方式结合

形成稳定分散的PVA-Fe

从而有利于其生物利用。

Abstract

In this study

nanoparticles were coated with PVA to synthesize PVA-Fe

complex

which were characterized by transmission electron microscopy（TEM）

thermo gravimetric（TG） analysis

UV-vis spectra

zeta potentials and ICP-MS

in terms of the physicochemical properties

while surface constituents

structures and chemical bonds of the modified and unmodified nanoparticles were characterized with synchrotron radiation X-ray photoelectron spectroscopy（SRXPS）

for exploring modification mechanism of the PVA-Fe

.The results indicate that after PVA modification

the suspension stability of Fe

nanoparticles in water and cellular uptake capability were significantly improved compared with unmodified Fe

.The SRXPS analysis reveals that the hydroxy groups on the surface of Fe

nanoparticles and PVA were combined by hydrogen bond to consist a stable system

which would be beneficial to the biomedical applications of Fe

nanoparticles.

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江苏省原子医学研究所卫生部核医学重点实验室

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Preparation,characterization and SRXPS study of polyvinyl alcohol modified Fe3O4 nanoparticles

DOI：

摘要

Abstract

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Preparation,characterization and SRXPS study of polyvinyl alcohol modified Fe₃O₄ nanoparticles