Nguyen, DTM;
Huynh, KDG;
Nguyen, TTD;
Huynh, VT;
Nguyen, PT;
Nguyen, LTB;
(2023)
Fabrication and characterization of polyvinyl alcohol/TiO2 membrane immersed in simulated body fluid for biomedical application.
Vietnam Journal of Chemistry
, 61
(6)
pp. 741-754.
10.1002/vjch.202300015.
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Nguyen_Fabrication and Characterization of Polyvinyl Alcohol- TiO2 Membrane immersed in Simulated Body Fluid for Biomedical Application.pdf Download (1MB) | Preview |
Abstract
In this study, we synthesized hydroxyapatite (HA) on polyvinyl alcohol/TiO2 (PVA/TiO2) in which TiO2 was prepared by the sol-gel method. HA was formed by immersing the membrane in the simulated body fluid (SBF) solution. We improved the mechanical strength of the membranes by adding glutaraldehyde (GA) combining with heat treatment to cross-link the polymer network. In addition, the composition of TiO2 crystalline phase, TiO2 content in each membrane, and the duration of membrane immersion in SBF solution were investigated. The morphological structures of hydroxyapatite/polyvinyl alcohol/TiO2 (HA/PVA/TiO2) membranes were characterized by IR, SEM, and XRD. We confirmed that the HA formation depended on the TiO2 content and phase composition (rutile or anatase). Membranes containing TiO2 rutile-phase showed more pronounced HA formation than membranes containing TiO2 anatase-phase. The appearance of HA also depended on SBF immersion duration. Membranes soaked for 3 weeks showed significantly more HA formation than membranes soaked for 1 and 2 weeks. Furthermore, the number of cells in membranes soaked for 3 weeks was clearly higher than in other membranes. Finally, HA/PVA/TiO2 membranes containing 25 wt.% of TiO2 rutile-phase are biocompatible based on the number of viable cells and thus have the potential for biomedical application.
| Type: | Article |
|---|---|
| Title: | Fabrication and characterization of polyvinyl alcohol/TiO2 membrane immersed in simulated body fluid for biomedical application |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/vjch.202300015 |
| Publisher version: | http://dx.doi.org/10.1002/vjch.202300015 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | PVA/TiO2, membrane, simulated body fluid, SBF, biomedical application |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute > Biomaterials and Tissue Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10191705 |
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