Fabrication of chelate-setting cements from hydroxyapatite powders surface-modified with various sodium inositol hexaphosphate concentrations and their mechanical properties

Toshiisa Konishi, Minori Mizumoto, Michiyo Honda, Zhi Zhuang, Mamoru Aizawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The effect of concentration of sodium inositol hexaphosphate (IP6-Na) on material properties of calcium-phosphate cement (CPC) was investigated. The starting cement powder (IP6-HAp) was prepared by grinding and surfacemodifying hydroxyapatite (HAp) powder in various concentrations of IP6-Na solution. To prepare the IP6-HAp cement paste, the IP6-HAp powder was mixed with water under various powder/liquid ratios (P/L= [g/mL]). Amount of IP6 adsorbed on the surface of HAp powders increased with an increment of IP6-Na concentration, leading to negative surface charge. Dispersion of IP6-HAp powders was improved with an increase of IP6-Na concentration. As for cement fabrication, the IP6-HAp powder with negative charge enabled putty-like cement paste to be prepared at the higher P/L ratio. The compressive strength fabricated from IP6-HAp powders with negative surface charge at -20 mV or lower was higher than that fabricated from IP6-HAp powders with negative surface charge at -10 mV or higher. This improvement of the CS may be due to the increase of packing density.

Original languageEnglish
Title of host publicationProcedia Engineering
PublisherElsevier Ltd
Pages137-143
Number of pages7
Volume36
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2011 IUMRS International Conference in Asia, ICA 2011 - Taipei, Taiwan, Province of China
Duration: Sep 19 2011Sep 22 2011

Other

Other2011 IUMRS International Conference in Asia, ICA 2011
CountryTaiwan, Province of China
CityTaipei
Period9/19/119/22/11

Fingerprint

Bone cement
Hydroxyapatite
Sodium
Powders
Fabrication
Mechanical properties
Surface charge
Adhesive pastes
Putty
Calcium phosphate
Compressive strength
Materials properties
Cements

Keywords

  • Bone graft
  • Calcium-phosphate cement
  • Hydroxyapatite
  • Inositol hexaphosphate
  • Surface modification

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Fabrication of chelate-setting cements from hydroxyapatite powders surface-modified with various sodium inositol hexaphosphate concentrations and their mechanical properties. / Konishi, Toshiisa; Mizumoto, Minori; Honda, Michiyo; Zhuang, Zhi; Aizawa, Mamoru.

Procedia Engineering. Vol. 36 Elsevier Ltd, 2012. p. 137-143.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Konishi, T, Mizumoto, M, Honda, M, Zhuang, Z & Aizawa, M 2012, Fabrication of chelate-setting cements from hydroxyapatite powders surface-modified with various sodium inositol hexaphosphate concentrations and their mechanical properties. in Procedia Engineering. vol. 36, Elsevier Ltd, pp. 137-143, 2011 IUMRS International Conference in Asia, ICA 2011, Taipei, Taiwan, Province of China, 9/19/11. https://doi.org/10.1016/j.proeng.2012.03.021
Konishi, Toshiisa ; Mizumoto, Minori ; Honda, Michiyo ; Zhuang, Zhi ; Aizawa, Mamoru. / Fabrication of chelate-setting cements from hydroxyapatite powders surface-modified with various sodium inositol hexaphosphate concentrations and their mechanical properties. Procedia Engineering. Vol. 36 Elsevier Ltd, 2012. pp. 137-143
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