Multifunctional porous organic polymers embedded with magnetic nanoparticles

2017 ◽  
Vol 5 (6) ◽  
pp. 2981-2986 ◽  
Author(s):  
Shanlin Qiao ◽  
Wei Huang ◽  
Ting Wang ◽  
Bin Du ◽  
Xiangning Chen ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Shell Structure ◽  
Bulk Material ◽  
Core Shell ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Core Shell Structure

Magnetism, a conjugated π-system and ultramicropores are combined in one multifunctional bulk material with a core@shell structure for dynamic and static pollutant treatment.

Characterization of Fe3O4@CS@NMDP magnetic nanoparticles with core–shell structure prepared by chemical cross-linking method

2017 ◽  
Vol 10 (05) ◽  
pp. 1750056 ◽  
Author(s):  
Huiping Shao ◽  
Jiangcong Qi ◽  
Tao Lin ◽  
Yuling Zhou ◽  
Fucheng Yu
Keyword(s):  
Magnetic Nanoparticles ◽  
Shell Structure ◽  
High Performance ◽  
Cross Linking ◽  
Composite Particles ◽  
Core Shell ◽  
The Core ◽  
Targeting Delivery ◽  
Core Shell Structure ◽  
Chemical Cross Linking

The core–shell structure composite magnetic nanoparticles (NPs), Fe3O4@chitosan@nimodipine (Fe3O4@CS@NMDP), were successfully synthesized by a chemical cross-linking method in this paper. NMDP is widely used for cardiovascular and cerebrovascular disease prevention and treatment, while CS is of biocompatibility. The composite particles were characterized by an X-ray diffractometer (XRD), a Fourier transform infrared spectroscopy (FT-IR), a transmission electron microscopy (TEM), a vibrating sample magnetometers (VSM) and a high performance liquid chromatography (HPLC). The results show that the size of the core–shell structure composite particles is ranging from 12[Formula: see text]nm to 20[Formula: see text]nm and the coating thickness of NMDP is about 2[Formula: see text]nm. The saturation magnetization of core–shell composite NPs is 46.7[Formula: see text]emu/g, which indicates a good potential application for treating cancer by magnetic target delivery. The release percentage of the NMDP can reach 57.6% in a short time of 20[Formula: see text]min in the PBS, and to 100% in a time of 60[Formula: see text]min, which indicates the availability of Fe3O4@CS@NMDP composite NPs for targeting delivery treatment.

Novel core-shell structure polyacrylamide-coated magnetic nanoparticles synthesized via photochemical polymerization

2006 ◽  
Vol 201 (1-2) ◽  
pp. 250-254 ◽  
Author(s):  
Hanwen Sun ◽  
Jun Hong ◽  
Fanzong Meng ◽  
Peijun Gong ◽  
Jiahui Yu ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Shell Structure ◽  
Core Shell ◽  
Photochemical Polymerization ◽  
Core Shell Structure

Effect of protamine on Fe3O4@CS@GFTN composite magnetic nanoparticles

2019 ◽  
Vol 13 (02) ◽  
pp. 2050001 ◽  
Author(s):  
Huiping Shao ◽  
Luhui Wang ◽  
Tao Lin ◽  
Yumeng Zhang ◽  
Zhinan Zhang
Keyword(s):  
Magnetic Nanoparticles ◽  
Shell Structure ◽  
Lung Diseases ◽  
Core Shell ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Core Shell Structure ◽  
Average Size ◽  
Chemical Coprecipitation Method

Fe3O4@chitosan (CS)@Gefitinib (GFTN) core-shell structure composite magnetic nanoparticles (NPs) were prepared by chemical coprecipitation method in this study. In addition, protamine was doped in Fe3O4 cores to prepare Fe3O4@protamine@CS@GFTN core-shell structure composite NPs, in order to increase the loading of GFTN in composite NPs. They were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM) and spectrophotometer. The results show that the average size of Fe3O4@CS@GFTN and Fe3O4@protamine@CS@GFTN composite NPs is approximately 19 and 21[Formula: see text]nm, respectively. The saturation magnetizations of composite magnetic NPs and corresponding magnetic fluids are 57.20, 20.79, 59.58 and 19.75[Formula: see text]emu/g, respectively. The loading of GFTN in composite NPs was measured by a spectrophotometer to be about 13.5% and 27.6%, respectively. The addition of protamine increased the loading of GFTN two times, indicating that it will play an important role in the management of lung diseases.

Synthesis of nanocomposite with a core—shell structure based on Fe3O4 magnetic nanoparticles and iron glycerolate

2019 ◽  
Vol 68 (6) ◽  
pp. 1178-1182 ◽  
Author(s):  
A. M. Dentin ◽  
T. G. Khonina ◽  
E. V. Shadrina ◽  
E. A. Bogdanova ◽  
D. K. Kuznetsov ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Shell Structure ◽  
Core Shell ◽  
Fe3o4 Magnetic Nanoparticles ◽  
Core Shell Structure

Fabrication and evaluation of molecularly imprinted magnetic nanoparticles for selective recognition and magnetic separation of lysozyme in human urine

The Analyst ◽  
2018 ◽  
Vol 143 (23) ◽  
pp. 5849-5856 ◽  
Author(s):  
Zulei Zhang ◽  
Hongmei Wang ◽  
Hailong Wang ◽  
Cuichen Wu ◽  
Mengli Li ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Nanoparticles ◽  
Magnetic Separation ◽  
Human Urine ◽  
Shell Structure ◽  
Good Stability ◽  
Selective Recognition ◽  
Core Shell ◽  
Molecularly Imprinted ◽  
Core Shell Structure

The Lyz-MMIPs displayed a uniform core–shell structure, favorable magnetic properties, good accessibility, and good stability and had a good affinity and excellent binding selectivity to Lyz.

Magnetic nanoparticles of core-shell structure for recoverable photocatalysts

2013 ◽  
Vol 102 (25) ◽  
pp. 253102 ◽  
Author(s):  
Ying Jing ◽  
Shi-Hai He ◽  
Jian-Ping Wang
Keyword(s):  
Magnetic Nanoparticles ◽  
Shell Structure ◽  
Core Shell ◽  
Core Shell Structure
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