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  • Title: Studies on the adsorption and desorption of mitoxantrone to lauric acid/albumin coated iron oxide nanoparticles.
    Author: Zaloga J, Feoktystov A, Garamus VM, Karawacka W, Ioffe A, Brückel T, Tietze R, Alexiou C, Lyer S.
    Journal: Colloids Surf B Biointerfaces; 2018 Jan 01; 161():18-26. PubMed ID: 29035747.
    Abstract:
    A rational use of superparamagnetic iron oxide nanoparticles (SPIONs) in drug delivery, diagnostics, and other biomedical applications requires deep understanding of the molecular drug adsorption/desorption mechanisms for proper design of new pharmaceutical formulations. The adsorption and desorption of the cytostatic Mitoxantrone (MTO) to lauric acid-albumin hybrid coated particles SPIONs (SEONLA-HSA) was studied by Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), surface titration, release experiments and small-angle neutron and X-ray scattering. Such MTO-loaded nanoparticles have shown very promising results in in vivo animal models before, while the exact binding mechanism of the drug was unknown. SEONLA-HSA formulations have shown better stability under drug loading in comparison with uncoated nanoparticle and sustainable drug release to compare with protein solution. Adsorption of MTO to SEONLA-HSA leads to decreasing of absolute value of zeta potential and repulsive interaction among particles, which points to the location of separate molecules of MTO on the outer surface of LA-HSA shell.
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