scholarly journals Effects of liquid phase on basic properties of .ALPHA.-tricalcium phosphate-based apatite cement

2008 ◽  
Vol 27 (5) ◽  
pp. 672-677 ◽  
Author(s):  
Makoto ODA ◽  
Akari TAKEUCHI ◽  
Xin LIN ◽  
Shigeki MATSUYA ◽  
Kunio ISHIKAWA
Keyword(s):  
Liquid Phase ◽  
Tricalcium Phosphate ◽  
Basic Properties ◽  
Apatite Cement

scholarly journals Comparison of the Effects of Added .ALPHA.- and .BETA.-Tricalcium Phosphate on the Basic Properties of Apatite Cement

2007 ◽  
Vol 26 (3) ◽  
pp. 342-347 ◽  
Author(s):  
Akinari NAKAGAWA ◽  
Shigeki MATSUYA ◽  
Akari TAKEUCHI ◽  
Kunio ISHIKAWA
Keyword(s):  
Tricalcium Phosphate ◽  
Basic Properties ◽  
Beta Tricalcium Phosphate ◽  
Apatite Cement

Effect of Added Tricalcium Phosphate on Basic Properties of Apatite Cement

2007 ◽  
pp. 339-342
Author(s):  
Akari Takeuchi ◽  
Akinari Nakagawa ◽  
Shigeki Matsuya ◽  
Kunio Ishikawa
Keyword(s):  
Tricalcium Phosphate ◽  
Basic Properties ◽  
Apatite Cement

Meerwein-Ponndorf reduction of benzaldehyde over metal oxides

1980 ◽  
Vol 45 (7) ◽  
pp. 1937-1939 ◽  
Author(s):  
Lubomír Nondek ◽  
Jiří Sedláček
Keyword(s):  
Liquid Phase ◽  
Metal Oxides ◽  
Basic Properties

The Meerwein-Ponndorf reduction of benzaldehyde by 2-propanol in the liquid phase was studied in the presence of metal oxides as the catalysts. Except for aluminia, all the eight metal oxides tested were found to be nearly inactive. The activity of the aluminia-magnesia catalysts decreased with the decreasing aluminia content. No correlation was observed between the basic properties of the aluminia-magnesia catalysts and their activity in the reduction of benzaldehyde.

The pH-Dependent Properties of the Biphasic Calcium Phosphate for Bone Cements

2014 ◽  
Vol 21 ◽  
pp. 3-16 ◽  
Author(s):  
Nuan La Ong Srakaew ◽  
Sirirat Tubsungnoen Rattanachan
Keyword(s):  
Compressive Strength ◽  
Liquid Phase ◽  
Calcium Phosphate ◽  
Phase Analysis ◽  
Calcium Phosphate Cement ◽  
Biphasic Calcium Phosphate ◽  
Setting Time ◽  
Bone Cements ◽  
Apatite Formation ◽  
Apatite Cement

Self-setting calcium phosphate cement (CPC) has been used in bone repair and substitution due to their excellent biocompatibility, bioactive as well as simplicity of preparation and use. The inherent brittleness and slow degradation are the major disadvantages for the use of calcium phosphate cements. To improve the degradation for the traditional CPC, the apatite cement formula incorporated with β-tricalcium phosphate (β-TCP) with varying concentration were studied and the effect of the pH value of liquid phase on the properties of this new calcium phosphate cement formula was evaluated. The apatite cements containing β-TCP for 10 and 40 wt.% were mixed into the aqueous solution with different pH values and then aging in absolute humidity at 37°C for 7 days. The setting time and phase analysis of the biphasic calcium phosphate were determined as compared to the apatite cement. For proper medical application, the compressive strength, the phase analysis and the degradation of the CPC samples at pH 7.0 and 7.4 were evaluated after soaking in the simulated body fluid (SBF) at 37°C for 7 days. The results indicated that the properties of the samples such as the setting time, the compressive strength related to the phase analysis of the set cements. The high degradation of the CPC was found in the cement with increasing β-TCP addition due to the phase after setting. Apatite formation with oriented plate-like morphology was also found to be denser on the surface of the biphasic bone cements after soaking in SBF for 7 days. The obtained results indicated that the cement containing β-TCP mixed with the liquid phase at pH 7.4 could be considered as a highly biodegradable and bioactive bone cement, as compared to the traditional CPC.

How the acido-basic properties of Mg silicates and clays govern the catalytic mechanism of transesterification reactions

2019 ◽  
Vol 9 (21) ◽  
pp. 6072-6084 ◽  
Author(s):  
Longfei Lin ◽  
Elisa Silva Gomes ◽  
François Payan ◽  
Maguy Jaber ◽  
Jean-Marc Krafft ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Catalytic Mechanism ◽  
Basic Properties ◽  
Magnesium Silicates

Choosing acido-basic properties of magnesium silicates to tune the transesterification mechanism in the liquid phase.

Development of a Novel Double Liquid Phase for Sintering β-Tricalcium Phosphate Scaffold

2016 ◽  
Vol 6 (10) ◽  
pp. 788-797
Author(s):  
Cijun Shuai ◽  
Songlin Duan ◽  
Chengde Gao ◽  
Pei Feng ◽  
Tao Xiao ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Tricalcium Phosphate

Effects of Powder Phase Sterilization on Basic Properties of Apatite Cement

2001 ◽  
Vol 218-220 ◽  
pp. 339-342
Author(s):  
M. Takechi ◽  
Y. Miyamoto ◽  
Ishikawa Kunio ◽  
Y. Momota ◽  
Tetsuya Yuasa ◽  
...  
Keyword(s):  
Basic Properties ◽  
Apatite Cement ◽  
Powder Phase

Effect of added NaHCO3 on the basic properties of apatite cement

2000 ◽  
Vol 54 (3) ◽  
pp. 311-319 ◽  
Author(s):  
Youji Miyamoto ◽  
Taketomo Toh ◽  
Kunio Ishikawa ◽  
Tetsuya Yuasa ◽  
Masaru Nagayama ◽  
...  
Keyword(s):  
Basic Properties ◽  
Apatite Cement
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