Fabrication of hierarchical meso/macroporous TiO2 scaffolds by evaporation-induced self-assembly technique for bone tissue engineering applications
- Mechanical Engineering Program, School of Science, Engineering and Technology, Pennsylvania State University, Harrisburg, Middletown, PA 17057 (United States)
- Animal and Marine Biotechnology Department, National Institute of Genetic Engineering and Biotechnology, P.O. Box 14965/161, Tehran (Iran, Islamic Republic of)
Highlights: • Hierarchical meso/macroporous TiO{sub 2} scaffolds were produced. • TiO{sub 2} formation mechanism was investigated. • The scaffolds had a pore size of 150–300 μm and meso pores of 6–12 nm. • The specific surface area obtained from BET theory was 67.89 m{sup 3} g{sup −1}. - Abstract: This paper reports the synthesis of hierarchical meso/macroporous TiO{sub 2} scaffolds by mimicking bone structure. Evaporation-induced self-assembly (EISA) method along with foamy method was utilized to produce TiO{sub 2} scaffolds in situ. Simultaneous thermal analysis (STA), small angle X-ray diffraction (SAXD), wide-angle X-ray diffraction (WAXD), nitrogen adsorption–desorption isotherm analysis, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques were applied to characterize the scaffolds. The results showed that TiO{sub 2} scaffolds can be produced after sintering the specimens at 550 °C for 2 h. The obtained scaffolds had a pore size in the range of 150–300 μm and meso pores in the range of 6–12 nm. The specific surface area was obtained from the Brunauer–Emmett–Teller theory, the total volume and mean diameter of pores were 67.89 m{sup 3} g{sup −1}, 0.1245 cm{sup 3} g{sup −1} and 7.3 nm, respectively.
- OSTI ID:
- 22805778
- Journal Information:
- Materials Characterization, Vol. 144; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
- Country of Publication:
- United States
- Language:
- English
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