Imperial College London
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Professor Saiz

Faculty of Engineering, Department of Materials

Chair in Structural Ceramics
 
 
 
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Contact

 

+44 (0)20 7594 6779e.saiz

 
 
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Location

 

LM04.BRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Caballero:2019:10.1007/s10856-018-6201-y,
author = {Caballero, SSR and Saiz, E and Montembault, A and Tadier, S and Maire, E and David, L and Delair, T and Gremillard, L},
doi = {10.1007/s10856-018-6201-y},
journal = {Journal of Materials Science: Materials in Medicine},
title = {3-D printing of chitosan-calcium phosphate inks: rheology, interactions and characterization},
url = {http://dx.doi.org/10.1007/s10856-018-6201-y},
volume = {30},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Bone substitute fabrication is of interest to meet the worldwide incidence of bone disorders. Physical chitosan hydrogels with intertwined apatite particles were chosen to meet the bio-physical and mechanical properties required by a potential bone substitute. A set up for 3-D printing by robocasting was found adequate to fabricate scaffolds. Inks consisted of suspensions of calcium phosphate particles in chitosan acidic aqueous solution. The inks are shear-thinning and consist of a suspension of dispersed platelet aggregates of dicalcium phosphate dihydrate in a continuous chitosan phase. The rheological properties of the inks were studied, including their shear-thinning characteristics and yield stress. Scaffolds were printed in basic water/ethanol baths to induce transformation of chitosan-calcium phosphates suspension into physical hydrogel of chitosan mineralized with apatite. Scaffolds consisted of a chitosan polymeric matrix intertwined with poorly crystalline apatite particles. Results indicate that ink rheological properties could be tuned by controlling ink composition: in particular, more printable inks are obtained with higher chitosan concentration (0.19 mol·L−1).
AU  - Caballero,SSR
AU  - Saiz,E
AU  - Montembault,A
AU  - Tadier,S
AU  - Maire,E
AU  - David,L
AU  - Delair,T
AU  - Gremillard,L
DO  - 10.1007/s10856-018-6201-y
PY  - 2019///
SN  - 0957-4530
TI  - 3-D printing of chitosan-calcium phosphate inks: rheology, interactions and characterization
T2  - Journal of Materials Science: Materials in Medicine
UR  - http://dx.doi.org/10.1007/s10856-018-6201-y
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000454541900004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/66378
VL  - 30
ER  -
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