In-situ fabrication of porous hydroxyapatite (HA) scaffolds with dense shells by freezing HA/camphene slurry
- Authors
- Yoon, Byung-Ho; Park, Chee-Sung; Kim, Hyoun-Ee; Koh, Young-Hag
- Issue Date
- 15-Apr-2008
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- freeze casting; porous; dense; hydroxyapatite; strength
- Citation
- MATERIALS LETTERS, v.62, no.10-11, pp.1700 - 1703
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 62
- Number
- 10-11
- Start Page
- 1700
- End Page
- 1703
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/123729
- DOI
- 10.1016/j.matlet.2007.09.063
- ISSN
- 0167-577X
- Abstract
- We fabricated a novel type of porous HA scaffold with a dense shell/porous core structure by freezing a hydroxyapatite (HA)/camphene slurry in-situ. During freezing, the camphene dendrites from the mold wall grew 2-dimensionally by pushing the HA particles into the remaining slurry, which resulted in the formation of a camphene layer/concentrated HA particles layer as the surrounding skin of the sample. After removing the frozen camphene and sintering the HA walls at 1250 degrees C for 3 h, a dense shell integrated with a porous core was formed in-situ. We prepared two types of porous HA scaffold, a porous HA cylinder with a dense shell and a 3-D HA scaffold, consisting of periodic HA networks with a dense shell/porous core structure. These novel scaffolds would be expected to have improved mechanical integrity due to the use of a dense shell, as well as efficient bone ingrowth inside pores formed in a porous core. (c) 2007 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > Department of Bioengineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.