Abstract
Composites material of hydrogel polymers and magnetic nanoparticles widely known as magnetic hydrogels have been extensively developed with the focus on variations of the two main substances. Based on previous works, hydrogels have been successfully fabricated by using polyvinyl alcohol (PVA) polymers and combination of PVA and Polyvinylpyrrolidone (PVP) as the matrix of the polymer. In addition, magnetite has also been widely used as filler in magnetic hydrogel fabrication due to its magnetic properties and magneto-thermal behavior. To improve the magneto-thermal behavior of magnetic hydrogels, the magnetic hydrogel has been successfully synthesized by using a PVP/PVA polymer as a matrix and magnetite with Mn-doped variations x=0.3 and 0.6 as filler. Based on the XRD analysis, the particle size of MnxFe3-xO4 powder was 10.4 nm which corresponds to the TEM results in the size of 9.9 nm. Besides, the nanostructures of magnetic hydrogel samples were characterized by using SAXS instrument and the Two-lognormal, Beaucage and Teubner-Strey functions. The primary and secondary particle sizes of MnxFe3-xO4 powder were 3.3 and 9.8 nm, respectively, while the crystallite size and the distance between crystals from the PVP/PVA hydrogel was 8.8 and 39 nm, respectively. Furthermore, the magneto-thermal Instrument was also carried out on samples and an average Specific Absorption Rate (SAR) value of 0.00372 W/gr was obtained. This result showed that the magnetic hydrogel is a potential candidate as hyperthermia therapy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
