Chinese Version
Home | About Journal | Editorial Board | Information for Authors | Copyright Transfer Statement | Contact us
Preparation of Dumbbell-like Magnetic Gold Mesoporous Silicon Microspheres and Determination of Magnetic/Photo Thermo and Catalytic Performance
Author NameAffiliationE-mail
XU Li-Li Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China  
ZHOU Mei-Ting Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China  
YANG A-Long Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China  
WANG Jia-Xing Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China  
ZHOU Tian-Fu Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China  
ZHANG Ying Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China zhangying@syphu.edu.cn 
Abstract: For the sake of tumor diagnosis and treatment integration, the magnetic gold nanocomposite (Au-Fe3O4) with magnetic thermo, photo thermo, and catalysis properties, was prepared by epitaxial oxidation and growth of iron oxide with gold nanoparticles as seeds and coated with the mesoporous silica layer (Au-Fe3O4@mSiO2) using cetyltrimethyl ammonium bromide (CTAB) and F127 as two template agents by sol-gel method. The prepared Au-Fe3O4 nanoparticles were dumbbell type with good single dispersion, uniform size distribution and particle size of 12~15 nm. When the magnetic field current increased from 25.5 to 42.5 A, heating rate of the sample (25 mg·mL-1) increased from 0.39 to 0.76℃·min-1. When the laser density increased from 0.3 to 1.2 W·cm-2, the temperature of the solution (25 mg·mL-1) increased from 0.69 to 2℃·min-1. Both the magneto thermal and photo thermal properties of Au-Fe3O4@mSiO2 composites were directly proportional to the concentration and the strength of the external magnetic field/density of laser irradiation. The photo thermal property of the composite was better than that of magneto thermal property. The catalytic release of NO by the Au-Fe3O4@mSiO2 complex (25 mg·mL-1 in S-nitrosoglutathione (GSNO)) reached a sustained and stable release within 60 min, with a maximum amount of 9.743 μmol·L-1.
Keywords: metal-matrix composite  thermal performance  heating rate  magnetic gold nanocomposite  catalytic performance
Hits:  1368
Download times:  740
XU Li-Li,ZHOU Mei-Ting,YANG A-Long,WANG Jia-Xing,ZHOU Tian-Fu,ZHANG Ying.Preparation of Dumbbell-like Magnetic Gold Mesoporous Silicon Microspheres and Determination of Magnetic/Photo Thermo and Catalytic Performance[J].Chinese Journal of Inorganic Chemistry,2019,35(6):971-977.
View Full Text  View/Add Comment  Download reader
Chinese Journal of Inorganic Chemistry