scholarly journals Magnetic Properties of Collagen–Chitosan Hybrid Materials with Immobilized Superparamagnetic Iron Oxide Nanoparticles (SPIONs)

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7652
Author(s):  
Sylwia Fiejdasz ◽  
Adriana Gilarska ◽  
Tomasz Strączek ◽  
Maria Nowakowska ◽  
Czesław Kapusta
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Hybrid Materials ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Collagen Hydrogel ◽  
Hydrogel Matrix ◽  
Potential Applications

The paper presents results of our studies on hybrid materials based on polymers of natural origin containing superparamagnetic iron oxide nanoparticles (SPIONs). Such nanoparticles, coated with the chitosan derivative, were immobilized in a chitosan-collagen hydrogel matrix by crosslinking with genipin. Three types of biopolymer matrices of different collagen-to-chitosan ratios were studied. A thorough magnetic characterization was performed, including magnetic susceptibility, magnetization, and hysteresis loop measurements in a temperature range of 4 K to 300 K and a magnetic field induction up to 8 Tesla. The effect of SPION immobilization and material composition on the magnetic properties of the hybrids was investigated. The results showed that hybrid materials with covalently bounded SPIONs preserved the superparamagnetic character of SPIONs and exhibited promising magnetic properties, which are important for their potential applications.

scholarly journals Hybrid molecular-inorganic materials: a heterometallic [Ni4Tb] complex grafted on superparamagnetic iron oxide nanoparticles

2017 ◽  
Vol 4 (4) ◽  
pp. 595-603 ◽  
Author(s):  
L. Rosado Piquer ◽  
E. Jiménez Romero ◽  
Y. Lan ◽  
W. Wernsdorfer ◽  
G. Aromí ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Superparamagnetic Iron Oxide ◽  
Inorganic Materials ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Magnetic Substrate

Ni4Tb SMMs grafted onto superparamagnetic IO-NPs retain their magnetic properties intact on the surface of the magnetic substrate.

A simple and versatile solvothermal configuration to synthesize superparamagnetic iron oxide nanoparticles using a coaxial microwave antenna

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104366-104374 ◽  
Author(s):  
Alessio Spepi ◽  
Celia Duce ◽  
Carlo Ferrari ◽  
José González-Rivera ◽  
Zvonko Jagličić ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Microwave Antenna ◽  
Oxide Nanoparticles ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Magnetic Iron Oxide

Magnetic iron oxide nanoparticles (IONs) with controllable physicochemical and magnetic properties were synthesized by a fast and simple solvothermal microwave (MW) assisted approach.

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