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Magnetic PLGA Nanospheres: A Dual Therapy for Cancer

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3 Author(s)
Kini, S. ; Centre for Res. in Nanotechnol. & Sci., Indian Inst. of Technol. Bombay, Mumbai, India ; Bahadur, D. ; Panda, D.

We report a strategy for developing a poly (DL-lactide-co-glycolide) (PLGA)-based controlled polymeric drug delivery system consisting of an anticancer agent curcumin and magnetic nanoparticles (MNPs). Superparamagnetic nanoparticles of size 9 nm were used to produce heat by applying an ac magnetic field of 11.7 kA/m. We characterized the properties of magnetic PLGA nanospheres encapsulated with curcumin as a drug delivery vehicle and also as a hyperthermic agent to induce cell death in HeLa cancer cells through magnetocalorific effect. The specific absorption rate for unencapsulated MNPs and encapsulated MNPs were found to be 108 and 59 W/g, respectively. Cell death due to magnetic hyperthermia was evaluated to be 90% higher with respect to control.

Published in:

Magnetics, IEEE Transactions on  (Volume:47 ,  Issue: 10 )

Date of Publication:

Oct. 2011

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