| 학회 |
한국재료학회 |
| 학술대회 |
2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 |
26권 1호 |
| 발표분야 |
B. 나노화학/바이오 재료 분과 |
| 제목 |
Fabrication of hierarchical titanium dioxide nanoflower-calcium phosphate composites for biomedical application |
| 초록 |
The biological properties of implants can be improved by modifying TiO2 thin films on dental implants by controlling the structure, morphology and thickness of the TiO2 layer. Hierarchical rutile TiO2 nanoflowers (TNF) were successfully fabricated on titanium substrate via hydrothermal reaction of titanium tetraisopropoxide and hydrochloric acid aqueous solution at 180°C for 3 h. The TNF films were soaked in modified simulated body fluid (m-SBF) for 1 to 7 days to form calcium phosphate (CaP) crystals. The crystalline structure, shape and size of the prepared composites were characterized by X-ray diffractometry and scanning electron microscopy (SEM). The nucleation and growth of calcium phosphate coating on TNF in m-SBF solution were investigated using SEM, XPS, and FT-IR surface analytical techniques. The density of CaP increased with increase of soaking time in m-SBF. The CaP crystallites covered on TNF were obtained as spherical agglomerates with nano-sized calcium phosphate particles and showed a low crystallinity of β-TCP. This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2019R1A5A2027521). |
| 저자 |
Kyung Hee Park, Ho-Jun Song, Yeong-Joon Park
|
| 소속 |
Chonnam National Univ. |
| 키워드 |
TiO<SUB>2</SUB> nanoflower; Hydrothermal method; Modified-simulated body fluid (m-SBF); Calcium phosphate
|
| E-Mail |
|
