Bioceramic scaffolds fabrication: indirect 3D printing combined with ice-templating vs. robocasting

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU130027" target="_blank" >RIV/00216305:26620/19:PU130027 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955221918307246?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221918307246?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2018.12.006" target="_blank" >10.1016/j.jeurceramsoc.2018.12.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bioceramic scaffolds fabrication: indirect 3D printing combined with ice-templating vs. robocasting

Popis výsledku v původním jazyce

Ice-templating combined with indirect 3D printing is proposed as a promising method for preparation of scaffolds with multiscale porosity, including a well-defined interconnected macro-channel network. Robocasting was used as a comparative technique to produce scaffolds with comparable porosity at the introduced macroporosity and the inter-grain microporosity levels. Porosity, phase composition and mechanical stability were measured and compared for bio-scaffolds prepared by both techniques. Comparable total porosities could only be achieved in robocasting by choosing a significantly lower sintering temperature (950 degrees C vs. 1200 degrees C). The compressive strength of robocast scaffolds was significantly greater (6.5 +/- 1.19 MPa vs. 2.3 +/- 1.00 MPa, respectively). However, the increased level of interconnected multiscale porosity coupled to a finer grain size of ice-templated samples sintered at 1200 degrees C (similar to 500 nm vs. 2.5 mu m for robocast parts) could prove to be beneficial for the development of highly porous bioactive scaffolds with enhanced biological performance.

Název v anglickém jazyce

Bioceramic scaffolds fabrication: indirect 3D printing combined with ice-templating vs. robocasting

Popis výsledku anglicky

Ice-templating combined with indirect 3D printing is proposed as a promising method for preparation of scaffolds with multiscale porosity, including a well-defined interconnected macro-channel network. Robocasting was used as a comparative technique to produce scaffolds with comparable porosity at the introduced macroporosity and the inter-grain microporosity levels. Porosity, phase composition and mechanical stability were measured and compared for bio-scaffolds prepared by both techniques. Comparable total porosities could only be achieved in robocasting by choosing a significantly lower sintering temperature (950 degrees C vs. 1200 degrees C). The compressive strength of robocast scaffolds was significantly greater (6.5 +/- 1.19 MPa vs. 2.3 +/- 1.00 MPa, respectively). However, the increased level of interconnected multiscale porosity coupled to a finer grain size of ice-templated samples sintered at 1200 degrees C (similar to 500 nm vs. 2.5 mu m for robocast parts) could prove to be beneficial for the development of highly porous bioactive scaffolds with enhanced biological performance.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of the European Ceramic Society

ISSN

0955-2219

e-ISSN

1873-619X

Svazek periodika

39

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

1595-1602

Kód UT WoS článku

000457819600111

EID výsledku v databázi Scopus

2-s2.0-85057578146