Ir al contenido (pulsa Retorno)

Universitat Politècnica de Catalunya

    • Català
    • Castellano
    • English
    • LoginRegisterLog in (no UPC users)
  • mailContact Us
  • world English 
    • Català
    • Castellano
    • English
  • userLogin   
      LoginRegisterLog in (no UPC users)

UPCommons. Global access to UPC knowledge

58.763 UPC E-Prints
You are here:
View Item 
  •   DSpace Home
  • E-prints
  • Departaments
  • Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
  • Articles de revista
  • View Item
  •   DSpace Home
  • E-prints
  • Departaments
  • Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
  • Articles de revista
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Evaluation of a porosity measurement method for wet calcium phosphate cements

Thumbnail
View/Open
Posprint, Accepted paper (951,8Kb)
Share:
 
 
10.1177/0885328215594293
 
  View Usage Statistics
Cita com:
hdl:2117/85341

Show full item record
Ajaxon, Ingrid
Maazouz, Yassine
Ginebra Molins, Maria PauMés informacióMés informacióMés informació
Ohman, Caroline
Persson, Cecilia
CovenanteeUppsala universitet
Document typeArticle
Defense date2015
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
The porosity of a calcium phosphate cement is a key parameter as it affects several important properties of the cement. However, a successful, non-destructive porosity measurement method that does not include drying has not yet been reported for calcium phosphate cements. The aim of this study was to evaluate isopropanol solvent exchange as such a method. Two different types of calcium phosphate cements were used, one basic (hydroxyapatite) and one acidic (brushite). The cements were allowed to set in an aqueous environment and then immersed in isopropanol and stored under three different conditions: at room temperature, at room temperature under vacuum (300¿mbar) or at 37¿. The specimen mass was monitored regularly. Solvent exchange took much longer time to reach steady state in hydroxyapatite cements compared to brushite cements, 350 and 18¿h, respectively. Furthermore, the immersion affected the quasi-static compressive strength of the hydroxyapatite cements. However, the strength and phase composition of the brushite cements were not affected by isopropanol immersion, suggesting that isopropanol solvent exchange can be used for brushite calcium phosphate cements. The main advantages with this method are that it is non-destructive, fast, easy and the porosity can be evaluated while the cements remain wet, allowing for further analysis on the same specimen
CitationAjaxon, I., Maazouz, Y., Ginebra, M.P., Ohman, C., Persson, C. Evaluation of a porosity measurement method for wet calcium phosphate cements. "Journal of biomaterials applications", 2015, vol. 30, núm. 5, p. 526-536. 
URIhttp://hdl.handle.net/2117/85341
DOI10.1177/0885328215594293
ISSN0885-3282
Publisher versionhttp://jba.sagepub.com/content/30/5/526
Collections
  • Departament de Ciència dels Materials i Enginyeria Metal·lúrgica - Articles de revista [961]
  • BBT - Biomaterials, Biomecànica i Enginyeria de Teixits - Articles de revista [369]
Share:
 
  View Usage Statistics

Show full item record

FilesDescriptionSizeFormatView
FULLTEXT01-UPCCommons.pdfPosprint, Accepted paper951,8KbPDFView/Open

Browse

This CollectionBy Issue DateAuthorsOther contributionsTitlesSubjectsThis repositoryCommunities & CollectionsBy Issue DateAuthorsOther contributionsTitlesSubjects

© UPC Obrir en finestra nova . Servei de Biblioteques, Publicacions i Arxius

info.biblioteques@upc.edu

  • About This Repository
  • Contact Us
  • Send Feedback
  • Inici de la pàgina