Preparation of Hydroxyapatite Powder Using a Freeze-Drying Method
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منابع مشابه
Freeze-drying fungi using a shelf freeze-drier.
Lyophilization, the removal of water by freezing and then volatilization at low pressure and temperature, has been employed as a standard long-term preservation method for many filamentous fungi. The method outlined involves the use of standard shelf freeze-drying and skimmed milk as a suspending solution/lyoprotectant. This approach has been employed to freeze-dry the majority of the 50,000 fu...
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In prospect of developing an oral dosage form of Infliximab, for treatment of Crohn's disease and rheumatoid arthritis, freeze-drying (vial vs Lyoguard trays) and spray-drying were investigated as production method for stable powders. Dextran and inulin were used in combination with sucrose as stabilizing excipients. The drying processes did not affect Infliximab in these formulations, i.e. bot...
متن کاملFreeze-drying as an alternative method of human sclera preservation.
PURPOSE To compare the effect of preserving sclera samples in either 95% ethanol or freeze-dried. METHODS Ninety-six samples of human sclera were studied. Half of them were freeze-dried and half preserved in 95% ethanol. Preservation periods of 18, 45, 90 or 174 days were studied. Automated immunostaining was carried out in the Ventana BenchMarkR LT platform using collagen 1 and fibronectin a...
متن کاملCirculating-Gas Freeze Drying
WAGMAN, JACK (U.S. Army Biological Laboratories, Frederick, Md.) AND EDWARD J. WENECK. Preservation of bacteria by circulating-gas freeze drying. Appl. Microbiol. 11:244-248. 1963.-Water-washed Serratia marcescens and Escherichia coli were freeze dried in a circulating-gas system at atmospheric pressure. This convective procedure resulted in a substantially higher survival of organisms than cou...
متن کاملFreeze-drying microscopy in mathematical modeling of a biomaterial freeze-drying
Transplantation brings hope for many patients. A multidisciplinary approach on this field aims at creating biologically functional tissues to be used as implants and prostheses. The freeze-drying process allows the fundamental properties of these materials to be preserved, making future manipulation and storage easier. Optimizing a freeze-drying cycle is of great importance since it aims at red...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Association, Japan
سال: 1987
ISSN: 1884-2127,0009-0255
DOI: 10.2109/jcersj1950.95.1104_825