Bulk structure of poly (ethylene glycol)/Titania hybrid system and the evaluation of their influence on apatite growth using simulated body fluid (SBF). (February 2021)

• Record Type: Journal Article
• Authors: Hara, Shuta; Aisu, Jumpei; Nishizaki, Yu; Kato, Haruki; Sanae, Genza; Kurebayashi, Sei; Shimizu, Shigeru; Ikake, Hiroki
• Is Part Of: Polymer testing. Volume 94(2021)
• Publication Date: 2021-02
• Subjects: Poly(ethylene glycol)/Titania hybrid materials -- SBF -- Apatite -- Microstructures -- Small-angle X-ray scattering; Polymers -- Testing -- Periodicals; Polymères -- Tests -- Périodiques; 620.1920287
• DOI: 10.1016/j.polymertesting.2020.106984
• Languages: English
• ISSNs: 0142-9418

Abstract

Abstract: In recent years, organic-inorganic hybrid materials prepared by the sol-gel method have gained considerable attention in various fields such as the optic and electromagnetic field, as well as in biomedical sciences. In this study, hybrid polymers composed of poly(ethylene glycol) (PEG) and titania with different molecular weights were prepared using the sol-gel method. Differential mobility analyzer (DMA), small-angle X-ray scattering (SAXS), and tensile test were performed to investigate the bulk structure of these hybrid materials. The results revealed that the encapsulated titania was not completely covered by the silica alkoxide, but was partially exposed in the matrix when PEG2900 was used. In addition, the results revealed that the exposure of titania accelerated the accumulation of hydroxyapatite from the CaTiO3 in the biomimetic liquid simulated body fluid (SBF). Highlights: TiO2 was partially exposed in the sample containing 40 wt% of TiOPr with PEG (2900). The surface area of TiO2, which was not completely capped in the silane group, increased with an increase in the TiOPr. The increase in the titania surface area promoted the formation of apatite starting from CaTiO3 in the SBF exposed test.