Preparation and Characterization of Biocompatible Membranes Based on TiO2 Nanoparticul

Authors : Gülşen TAŞKIN ÇAKICI

Pages : 1376-1385

Doi:10.16984/saufenbilder.971191

View : 25 | Download : 11

Publication Date : 2021-12-31

Article Type : Research Paper

Abstract :In this study, biocompatible composite membranes of sodium alginate/hydroxypropyl methylcellulose insert ignore into journalissuearticles values(NaAlg/HPMC); based on nano-titanium dioxide insert ignore into journalissuearticles values(n-TiO2); were prepared. Regarding the preparation processes of these membranes, the amount of citric acid [5%, 15%, 30% insert ignore into journalissuearticles values(w/w);] added to the NaAlg/HPMC blend, the crosslinker type insert ignore into journalissuearticles values(glutaraldehyde, acetone/water with glutaraldehyde, CaCl2);, and the amount of n-TiO2 [5%, 15%, 20% insert ignore into journalissuearticles values(w/w);] were studied and optimum conditions were determined. When the equilibrium swelling values were examined, it was observed that the one with the least swelling was the CaCl2 crosslinked membrane. Fourier Transform Infrared insert ignore into journalissuearticles values(FTIR); Spectroscopy, Differential Scanning Calorimetry insert ignore into journalissuearticles values(DSC);, and Scanning Electron Microscopy insert ignore into journalissuearticles values(SEM); were used to characterize the modified crosslinked membranes. The FTIR analysis results showed the formation of hydrogen bonds between the hydroxyl groups of the HPMC and NaAlg polymer chains. The DSC analysis showed the existence of single glass transition temperature insert ignore into journalissuearticles values(Tg); which indicated the compatibility and physical interaction between the NaAlg and HPMC polymer chains for NaAlg / HPMC mixtures.
Keywords : sodium alginate, hydroxypropylmethylcellulose, nanoparticle TiO2, nanocomposite membrane