Detail publikace

Porous HA/alumina composites intended for bone-tissue engineering

BARTONÍČKOVÁ, E. VOJTÍŠEK, J. TKACZ, J. POŘÍZKA, J. MÁSILKO, J. MONČEKOVÁ, M. PAŘÍZEK, L.

Originální název

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Ceramic biomaterials based on hydroxyapatite (HA) or alumina have been intensively studied due to their load-bearing applications in the bone-tissue replacement/reconstruction and dental applications. Here we present a study of the preparation and properties of HA/alumina (HA/Al) composites with a targeted porosity. The HA powder used for the composite's preparation was synthetized via a precipitation method under a variety of pH values. The resulting powders were verified with XRD, Raman and FTIR analyses. The particle size was assessed via SEM and laser diffraction. The as-prepared HA nanopowder and alumina powder (median 3 μm) were homogenously mixed having a composition of HA/Alumina = 90/10 (w/w). A suspension with 65 % mass fraction of the powders was properly mixed and, with the help of foaming agents, it was foamed in situ. The behavior under an increasing temperature was studied, using a heating microscope and dried foams were sintered under determined temperatures. The final sintered foams were examined in vitro in a synthetic body fluid, which predicted the behavior of bone implants in vivo. The behavior of the treated samples was studied with SEM. The newly formed HA composites were confronted with Ca2+ and PO4 3- contents in the applied body-fluid solution.

Klíčová slova

Ceramic scaffolds; hydroxyapatite/Al2O3 composite; in vitro bioactivity; SEM

Autoři

BARTONÍČKOVÁ, E.; VOJTÍŠEK, J.; TKACZ, J.; POŘÍZKA, J.; MÁSILKO, J.; MONČEKOVÁ, M.; PAŘÍZEK, L.

Vydáno

1. 7. 2017

Nakladatel

IMT Ljublana, Materiali in technologie

Místo

Ljublana, Slovinsko

ISSN

1580-2949

Periodikum

Materiali in tehnologije

Ročník

Číslo

Stát

Slovinská republika

Strany od

631

Strany do

636

Strany počet

URL

http://mit.imt.si/Revija/izvodi/mit174/bartonickova.pdf

BibTex

@article{BUT138751,
  author="Eva {Bartoníčková} and Jan {Vojtíšek} and Jakub {Tkacz} and Jaromír {Pořízka} and Jiří {Másilko} and Miroslava {Mončeková} and Ladislav {Pařízek}",
  title="Porous HA/alumina composites intended for bone-tissue engineering",
  journal="Materiali in tehnologije",
  year="2017",
  volume="51",
  number="4",
  pages="631--636",
  doi="10.17222/mit.2016.191",
  issn="1580-2949",
  url="http://mit.imt.si/Revija/izvodi/mit174/bartonickova.pdf"
}