Synthesis and characterization of thermo-sensitive magnetic maghemite nanoparticles

被引：6
|
作者：
Cappelletti, Ariel L. [1 ]
Paez, Julieta I. [1 ]
Strumia, Miriam C. [1 ]
机构：
[1] Univ Nacl Cordoba, Fac Ciencias Quim, Dept Quim Organ IMBIV CONICET, Ciudad Univ, RA-5000 Cordoba, Argentina
来源：
ARKIVOC | 2011年
关键词：
Magnetic nanoparticles; maghemite; thermo-sensitive nanoparticles; poly(N-isopropylacrylamide); SURFACE-PROPERTIES; PHASE-TRANSITION; POLY(N-ISOPROPYLACRYLAMIDE); PARTICLES; HYDROGELS; POLYMERS;
D O I：
10.3998/ark.5550190.0012.735
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The modification of magnetic nanoparticles (MNPs) with a thermo-sensitive organic shell of poly(N-isopropylacrylamide) (PNIPAm) is reported. The surface of maghemite MNPs was modified in two steps: firstly, using a silane coupling agent and leaving vinyl pending groups on the MNPs surface; and secondly, grafting PNIPAm chains from the modified MNPs via a free radical polymerization. The results indicate that the method developed here for the modification of MNPs is an effective way of synthesizing thermo-responsive MNPs. They present a magnetic behavior due to the maghemite core and a thermal response based on a deswelling/swelling of their polymeric shell (PNIPAm).
引用
收藏
页码：426 / 438
页数：13
相关论文
共 50 条
  • [1] Fabrication and characterization of thermo-sensitive magnetic polymer composite nanoparticles
    Wu, Fengqin
    Li, Qinhua
    Zhang, Xiaojuan
    Liu, Li
    Wu, Shixi
    Sun, Danping
    Li, Fengsheng
    Jiang, Wei
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (07) : 1326 - 1330
  • [2] Synthesis and characterization of thermo-sensitive nanoparticles for drug delivery applications
    Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX, United States
    不详
    不详
    不详
    [J]. J. Biomed. Nanotechnol., 2008, 4 (482-490):
  • [3] Synthesis and Characterization of Thermo-Sensitive Nanoparticles for Drug Delivery Applications
    Rahimi, Maham
    Kilaru, Sunitha
    Sleiman, Ghida El Hajj
    Saleh, Anas
    Rudkevich, Dmitry
    Nguyen, Kytai
    [J]. JOURNAL OF BIOMEDICAL NANOTECHNOLOGY, 2008, 4 (04) : 482 - 490
  • [4] Synthesis and Characterization of thermo-sensitive copper/paraffin nanocomposites
    Xu, Bin
    Lou, Baiyang
    [J]. RECENT TRENDS IN MATERIALS AND MECHANICAL ENGINEERING MATERIALS, MECHATRONICS AND AUTOMATION, PTS 1-3, 2011, 55-57 : 1769 - 1773
  • [5] Synthesis and characterization of thermo-sensitive humidity control materials
    Li, Xin
    Feng, Wei-Hong
    Li, Hui-Ling
    Lu, Qi-Ming
    Wang, Bing-Feng
    [J]. Sichuan Daxue Xuebao (Gongcheng Kexue Ban)/Journal of Sichuan University (Engineering Science Edition), 2010, 42 (04): : 197 - 202
  • [6] Synthesis and characterization of thermo-sensitive magnetite-Au nanocomposites
    Zhou, Lilin
    Zheng, Liyao
    Yuan, Jinying
    Wu, Sizhu
    [J]. MATERIALS LETTERS, 2012, 78 : 166 - 169
  • [7] Thermo-sensitive nanoparticles for triggered release of siRNA
    Yang, Zheng
    Cheng, Qiang
    Jiang, Qian
    Deng, Liandong
    Liang, Zicai
    Dong, Anjie
    [J]. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION, 2015, 26 (04) : 264 - 276
  • [8] pH- and thermo-sensitive hydrogel nanoparticles
    Sahoo, SK
    De, TK
    Ghosh, PK
    Maitra, A
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1998, 206 (02) : 361 - 368
  • [9] SYNTHESIS OF MAGNETIC THERMO-SENSITIVE POLYMERIC MICROSPHERES FOR CONTROLLED RELEASE VIA MAGNETIC INDUCTION
    Cai, Li-feng
    Wen, Yu-qian
    Lin, Zhi-yong
    Qian, Hao
    Deng, Xiong-wei
    [J]. ACTA POLYMERICA SINICA, 2012, (08) : 846 - 851
  • [10] Preparation and characterization of thermo-sensitive composite microspheres with dual-magnetic responses
    Wen, Yuqian
    Cai, Lifeng
    Lin, Zhiyong
    [J]. Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering, 2012, 28 (07): : 120 - 123
12345