Bioceramics Volume 10 (Biocermaics) by L. Sedel, C. Rey

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By L. Sedel, C. Rey

Bioceramics 10 includes the court cases of the tenth overseas Symposium on Ceramics in drugs, held in Paris, France, in October 1997. those annual symposia assemble exclusive researchers within the fields of ceramics and medication to replace principles and to debate contemporary examine results.Bioceramics in drugs has develop into one of many extra very important fields of biomaterials. The medical purposes of bioceramics are a number of. specifically in parts equivalent to orthopaedic surgical procedure, dentistry and cosmetic surgery, but additionally E.N.T., percutaneous units and embolisation fabrics. as well as the numerous medical purposes, Bioceramics 10 bargains with quite a number primary matters in depth.This booklet could be a necessary reference software for either clinicians, teachers and business researchers attracted to using ceramics in drugs. The booklet can also be of significant price to scholars and teachers in fabrics technology, biomedical engineering and orthopaedics. This quantity comprises a hundred and forty papers, greater than two hundred top of the range images, and either writer and key-phrase indexes.

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None ^ 1 50 , 100 1 150 200 Soaking time /h Figur e 3 Change s in element concentration s and pH with soakin g of NaOH-treate d Ta substrate s with and withou t heat treatment . 14 Bioceramies Volume10 apatite formation to that of the substrate without heat treatment, whereas that heat-treated at 500 C showed the induction period as long as 2 weeks. At any rate, these induction periods are much shorter than that of original Ta substrate without NaOH-treatment, 4 weeks. Figure 3 shows the changes in element concentrations and pH with soaking of NaOH-treated Ta substrate with and without heat treatments.

Otsu, Japan) was also used as a substrate. , Tokyo, Japan). 5 SBF for 6 d after soaking in sodium metasihcate solutions with various concentrations for 6 h. 0 M-treated specimens. 5 SBF for 6 d after soaking in sodium metasihcate solutions with various concentrations for 6 h. 5 M, apatite particles were deposited only on a small part of the surface of the substrate. 0 M solution. 0 M solutions. These results indicate that the apatite-forming tendency becomes higher with increasing concentration of sodium sihcate solution.

The storag e modulu s (E’ ) of HAPEX"^ ^ is plotte d agains t temperatur e in Figur e 1. As expected , it increase d with an increas e in HA conten t and decrease d with an increas e in temperature . Unlik e storag e modulu s which decrease d monotonicall y with an increas e in temperature , the loss modulu s of the composite s initiall y decrease d with a temperatur e rise from -100*C to -25*C, it then increase d to p e ^ at aroun d 40*C, with a subsequen t decreas e toward s higher temperatures .

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