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文章题目：Ｃontrollable synthesis and surface modification of Fe3O4 nanoparticles. 作者：Ｌiu Ｌｉ-ｎａ，Ｑin Ｒｕｉ-ｆｅｉ, Ｚhang Ｙｏｎｇ-ｓｈｅｎｇ, Ｓun Ｒｕｉ-ｒｕｉ, Ｘiao Hongyu doi: 10.3788/fgxb20194004.0425@阿努 |
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Controllable Synthesis and Surface Modification of Fe3O4 Nanoparticles Accession number: 20192507080107 Title of translation: Fe3O4纳米粒子的可控制备及其表面改性 Authors: Liu, Li-Na 1 ; Qin, Rui-Fei 1 ; Zhang, Yong-Sheng 1 ; Sun, Rui-Rui 1 ; Xiao, Hong-Yu 1 Author affiliation : 1 Department of Mathematics and Physics, Luoyang Institute of Science and Technology, Luoyang; 471023, China Corresponding author: Liu, Li-Na (liuln448@163.com) Source title: Faguang Xuebao/Chinese Journal of Luminescence Abbreviated source title: Faguang Xuebao Volume: 40 Issue: 4 Issue date: April 1, 2019 Publication Year: 2019 Pages: 425-431 Language: Chinese ISSN: 10007032 CODEN: FAXUEW Document type: Journal article (JA) Publisher: Chines Academy of Sciences Abstract: Fe3O4 has a wide application prospect in biomedical fields such as cell separation, targeted drugs, magnetic resonance imaging and so on. In this work, Fe3O4 nanoparticles were synthesized by solvothermal method, and the effects of reaction temperature, reaction time and precursor composition on the structure and morphology of Fe3O4 were studied in detail. The reaction time had little effect on the size of the spherical nanoparticles. When the reaction time was 12 h, the diameter of the spheres reached the maximum. When the reaction time was increased, the size of the spheres kept constant. The reaction did not occur when the reaction temperature was 120℃. Face-centered cubic structure Fe3O4 was obtained when the reaction temperature was 160, 200, 240℃. The diameter of Fe3O4 was maximum when the reaction temperature was 200℃. Cube-shaped Fe3O4 was obtained when ethylenediamine was replaced by hydrazine hydrate. In order to improve the chemical stability, biocompatibility and the possibility using Fe3O4 nanoparticles as drug carriers, a layer of SiO2 mesoporous molecular sieve was coated on the surface of Fe3O4 by Stöber method. The effects of ultrasonic and mechanical stirring on the morphology of core-shell structure were investigated. The magnetic properties of the samples before and after SiO2 coating were also studied. The samples were all superparamagnetic before and after coating. © 2019, Science Press. All right reserved. Number of references: 19 Main heading: Boron compounds Controlled terms: Biocompatibility - Chemical stability - Coatings - Controlled drug delivery - Iron oxides - Magnetic resonance imaging - Magnetite - Molecular sieves - Morphology - Nanoparticles - Nitrogen compounds - Shells (structures) - Silica - SiO2 nanoparticles - Spheres - Synthesis (chemical) Uncontrolled terms: Core shell - Face centered cubic structure - Fe3O4 - Mesoporous molecular sieves - SiO2 - Solvothermal method - Spherical nanoparticles - Structure and morphology Classification code: 408.2Structural Members and Shapes - 461.9.1Immunology - 746Imaging Techniques - 761Nanotechnology - 801Chemistry - 802.2Chemical Reactions - 803Chemical Agents and Basic Industrial Chemicals - 804.2Inorganic Compounds - 813.2Coating Materials - 933Solid State Physics - 951Materials Science Numerical data indexing: Time 4.32e+04s DOI: 10.3788/fgxb20194004.0425 Funding Details: NumberAcronymSponsor16A140012-Natural Science Foundation of Henan Province172102210398-Natural Science Foundation of Henan Province172102210404-Natural Science Foundation of Henan Province18B140007-Natural Science Foundation of Henan Province51302128NSFCNational Natural Science Foundation of China Funding text: Supported by National Natural Science Foundation of China(51302128); Program for Youth Scholar Teachers Supporting Plan in Universities of Henan Province(2015GGJS-112); Natural Science Foundation of Henan Province(172102210398,18B140007,172102210404,16A140012). Database: Compendex Compilation and indexing terms, © 2019 Elsevier Inc. |
2楼2019-07-02 08:58:05