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Tailored functionalization of ZnO nanoparticle via reactive cyclodextrin and its bionanocomposite synthesis



β-cyclodextrin was grafted onto the surface of ZnO nanoparticles via efficient, simple and fast technique through nucleophilic substitution reaction of OH groups on ZnO nanoparticle surface with reactive cyclic oligosaccharide, Monochlorotriazinyl-β-cyclodextrin (MCT-β-CD). Characterization of functionalized ZnO nanoparticles were carried out by Fourier transform infrared spectra (FT-IR), elemental analysis (CHN), Thermogravimetric analysis (TGA), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The amount of MCT-β-CD bonded to the ZnO surface was determined by CHN and TGA analysis. Followed by, innovative poly(ester-amide)/ZnO bionanocomposites (PEA/ZnO BNCs) were fabricated through solution mixing method. Due to using biodegradable amino acid containing polymer, the synthesized nanocomposites are expected to classify as biologically active materials. Morphological studies of prepared BNC proved good distribution of modified ZnO in PEA matrix with nanoscale size. Good dispersion and less aggregation, indicate the effect of functionalization on preventing nanoparticles to aggregate.


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