نتایج جستجو برای: octacalcium

تعداد نتایج: 231  

Journal: :تحقیقات آب و خاک ایران 0
نسیم حیدری دانشجوی سابق کارشناسی ارشد گروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز عادل ریحانی تبار استادیار گروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز نصرت اله نجفی دانشیارگروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز شاهین اوستان دانشیارگروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز

information about forms of phosphorus (p) is important for the evaluation of p status in soil and also understanding of the soil fertility and plant nutrition. to obtain such information and to determine the relationship between the p forms from soil characteristics, amount of different organic and inorganic p forms of 20 soil composite samples of eastern azerbaijan province, iran were determin...

2008
A. M. Minarelli-Gaspar S. Saska J. Jimenez L. R. da Cunha P.D.A. Bolini C. Leal L. Morejón-Alonso R. G. Carrodeguas A. López-Bravo C.A.C. Zavaglia

The biological behavior of a new bioactive material composed of calcium-deficient hydroxyapatite, octacalcium phosphate, and β-tricalcium phosphate was investigated by in vitro indirect and direct cytotoxicity, cell adhesion and proliferation tests, and by in vivo subcutaneous and bone implantation in rats. The results of the in vitro studies showed that the material is biocompatible and no cyt...

2018
John L. Meyer J. L. MEYER

Recent experimental evidence suggests that octacalcium phosphate (OCP) is a necessary precursor to hydroxyapaptite in the amorphous-crystalline transformation that occurs after the spon..: taneous precipitation of calcium phosphate in the pH range 7.00-9.25. The transformation appears to occur by heterogeneous nucleation of OCP by the initially formed amorphous calcium phosphate (ACP) phase. AC...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
اسحاق علی صابری eshagh-ali saberi dental school, zahedan university of medical sciences, tehran-iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی زاهدان فریدون سرگلزائی اول fereydoon sargolzaei aval medical school, zahedan university of medical sciences, zahedan-iran.دانشکده پزشکی، دانشگاه علوم پزشکی زاهدان سید محسن حسینی گوشه mohsen hosseini goosheh dental school, ahvaz university of medical sciences, ahvaz-iran.دانشکده دندانپزشکی. دانشگاه علوم پزشکی اهواز. مریم قمری maryam ghamari dental school, zahedan university of medical sciences, tehran-iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی زاهدان

objective: furcal perforation is an undesirable complication that may occur during root canal therapy and seriously compromises the prognosis of endodontic treatment. the prognosis of furcal perforation repair depends on the prevention of bacterial infection of the perforation site. thus, use of a biocompatible material for complete sealing of the perforation site is critically important. this ...

Journal: :Journal of the Ceramic Society of Japan 2022

Octacalcium phosphate (OCP) coating was formed on the surface of Mg–Al–Zn–Ca alloy (AZX612) by anodically oxidized and subsequently immersed in a supersaturated aqueous solution containing calcium ion under ordinary temperature pressure. The OCP layer consisted both inner fine crystallites outer large crystallites, remained even after ultrasonication process. In simulated body fluid, AZX612 tre...

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