Biodegradable magnetic gel: synthesis and characterization
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Biodegradable polymer-based magnetic gels have been synthesized using hydroxypropyl cellulose and maghemite. These magnetic gels have a network of nanoparticles of hydroxypropyl cellulose (30–100 nm) and a homogeneous distribution of nanosized maghemite (~7 nm). This has been observed in a STEM micrograph. The surface structure of the gels has been observed by atomic force microscopy, while transmission electron microscopy has shown the distribution of iron oxide in HPC gel nanoparticles. These gels have magneto-elastic properties. The magnetic susceptibility and magnetization of these gels are measured by a superconducting quantum interference device magnetometer.
KeywordsFerrogel Gel nanoparticles Hydroxy propyl cellulose Maghemite Stimuli responsive
This work was partly supported by Center for Materials Research and Technology (MARTECH), Florida State University. Authors are grateful to Dr. Eric Lochner of Martech for his help in measuring the magnetic properties for the gels.
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