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The effect of reaction conditions on hydroxyapatite particle morphology and applications to the reticulated foam method of scaffold production

  • J.H. Robinson
  • , S.M. Best
  • , Z. Ahmad
  • , M.J. Edirisinghe

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

The production of nano-scale hydroxyapatite (HA) suspensions to be used for the reticulated foam method of scaffold production was investigated at temperatures of between 10 and 60OC. An increase in reaction temperature was associated with an increase in the particle size and some decrease in the aspect ratio of the particles. Pre-treatment of the polyurethane foam template using PPDS (potassium peroxodisulfate) solution resulted in a significantly improved coating of HA when compared to the untreated samples or those treated with ethanol. Initial trials coating the polyurethane with HA produced at the different reaction temperatures showed a superior coating with the suspension produced at 10OC compared to that at 60OC. A scaffold was produced using the HA suspension produced at room temperature, but further understanding of the suspension properties and the optimum conditions for coating of the PU foam are required for improved mechanical performance.
Original languageEnglish
Title of host publicationBioceramics
Subtitle of host publicationProceedings of the 20th International Symposium on Ceramics in Medicine (ISCM)
EditorsGuy Daculsi, Pierre Layrolle
Place of PublicationStafa-Zuerich
PublisherTrans Tech Publications Ltd
Pages3-6
Number of pages4
Volume20, Part 1
ISBN (Electronic)9783038131892, 9783908453826
ISBN (Print)9780878494576
DOIs
Publication statusPublished - 20 Nov 2007
Event20th International Symposium on Ceramics in Medicine - Nantes, France
Duration: 24 Oct 2007 → 26 Oct 2007

Publication series

NameKey Engineering Materials
PublisherTrans Tech Publications Ltd
Volume361-363
ISSN (Print)1662-9795

Conference

Conference20th International Symposium on Ceramics in Medicine
Abbreviated titleISCM 2007
Country/TerritoryFrance
CityNantes
Period24/10/07 → 26/10/07

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