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  • Title: Effect of crosslinker on drug delivery properties of curcumin loaded starch coated iron oxide nanoparticles.
    Author: Saikia C, Das MK, Ramteke A, Maji TK.
    Journal: Int J Biol Macromol; 2016 Dec; 93(Pt A):1121-1132. PubMed ID: 27664928.
    Abstract:
    Aminated starch coated iron oxide magnetic nanoparticles loaded with curcumin were synthesized via coprecipitation technique. The nanoparticles were crosslinked by using three different crosslinkers: glutaraldehyde, genipin and citric acid and the effect of crosslinking on different properties of the nanoparticles was evaluated. Characterisation of the nanoparticles was done with FTIR (Fourier Transform Infrared spectroscopy) and XRD (X-Ray Diffraction). Magnetic property study using VSM (Vibrating Sample Magnetometer) showed their superparamagnetic nature. Morphology of the nanoparticles was studied by SEM (Scanning Electron Microscopy) and TEM (Transmission Electron Microscopy). Zeta potential values showed that crosslinking imparted stability to the system. Crosslinking also enhanced drug loading and encapsulation efficiency of the system. Swelling and in vitro studies of the nanoparticles showed that the release of drug was dependent on time, crosslinker nature, crosslinker concentration and pH of the medium. The aminated starch coated nanoparticles also showed good mucoadhesive character. The cell viability assessment by MTT study revealed their compatibility with human lymphocytes cells and their considerable cell growth inhibiting properties with MCF7 and HepG2 cells. The nanoparticles showed good internalization in HepG2 cells along with considerable ROS formation.
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