Abstract
The nanohyperthermia investigation of superparamagnetic La0.77Sr0.23MnO3 nanoparticles synthesized by hydrothermal method has been carried out. The synthesized nanoparticles are found to be highly uniform in size and shape with average particle size 18nm. Structural analysis confirms the pseudo-cubic perovskite crystal structure with space group of (R3c). The magnetization versus applied magnetic field (M-H) hysteresis loops measurements revealed the superparmagnetic nature of the synthesized nanoparticles. The induction heating of synthesized nanoparticles for their applications in nanohyperthermia has been studied. The in vitro cytotoxicity test of the synthesized superparamagnetic nanoparticles has been probed by evaluating the viability of HeLa (Human Negroid Cervix Epitheloid Carcinoma) cell lines. The mechanism responsible for nanohyperthermia heating of the synthesized nanoparticles has been discussed.
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