Results 91 to 100 of about 2,497 (206)

Microwave Effects on Double‐Decomposition‐Produced Hydroxyapatite: X‐ray Diffraction, Infrared Spectroscopy, Hirshfeld Surface, and Molecular Docking Studies

open access: yesChemistrySelect, Volume 10, Issue 34, September 8, 2025.
Apatitic tricalcium phosphate (Ca9(HPO4)(PO4)5(OH)) was synthesized via coprecipitation and microwave‐assisted methods. Structural (XRD), vibrational (FTIR), and thermal (TGA‐DTA) analyses confirmed phase formation. Molecular docking and Hirshfeld surface analysis revealed promising antiviral interactions with HIV‐1 targets.
Abdellatif Rafik   +3 more
wiley   +1 more source

Oriented crystallization of octacalcium phosphate into beta-chitin scaffold [PDF]

open access: yes, 2001
Composites of β-chitin with octacalcium phosphate (OCP) or hydroxylapatite (HAP) were prepared by precipitation of the mineral into a chitin scaffold by means of a double diffusion system. The β-chitin was obtained from the pen of the Loligo sp.
Falini G., Ripamonti A., Fermani S.
core   +1 more source

Inorganic soil phosphorus: II. Changes in monocalcium phosphate and lime potentials on mixing and liming soils [PDF]

open access: yes, 1970
Mixtures of Woburn (non‐calcareous) and Barnfield (calcareous) soils, with and without added monocalcium phosphate, and of Woburn soil with added CaCO3, were stored moist in an incubator at 25 ± 2 °C.
Mattingly, G. E. G., Webber, M. D.
core   +1 more source

Effect of Calcium and Phosphate on Compositional Conversion from Dicalcium Hydrogen Phosphate Dihydrate Blocks to Octacalcium Phosphate Blocks

open access: yesCrystals, 2018
Octacalcium phosphate (OCP) has attracted much attention as an artificial bone substitute because of its excellent osteoconductive and bone replacement properties.
Yuki Sugiura, Kunio Ishikawa
doaj   +1 more source

Syntheses of Octacalcium Phosphate Containing Dicarboxylic Acids and Effects of the Side Groups on the Crystal Growth of Octacalcium Phosphate.

open access: yesJournal of the Ceramic Society of Japan, 2000
The syntheses of octacalcium phospates (OCPs) containing dicarboxylic acids, Ca8(HPO4)2-z(RC2O4)z(PO4)4⋅mH2O, were attempted. The effects of the side groups on crystal growth of these compounds were investigated. OCPs containing dicarboxylic acid were obtained from tricalcium phosphate (α-Ca3(PO4)2) in acetic acid/sodium acetate buffer solution by ...
AOKI, Shinsuke   +3 more
openaire   +2 more sources

Adsorption of Serum Albumin onto Octacalcium Phosphate in Supersaturated Solutions Regarding Calcium Phosphate Phases [PDF]

open access: yes, 2019
Octacalcium phosphate (OCP) has been shown to enhance new bone formation, coupled with its own biodegradation, through osteoblasts and osteoclast-like cell activities concomitant with de novo hydroxyapatite (HA) formation and serum protein accumulation ...
Kaori Tsuchiya, Osamu Suzuki, Ryo Hamai
core   +1 more source

Radiation induced paramagnetic radicals in synthetic octacalcium phosphate [PDF]

open access: yes, 2018
© 2018 Institute of Physics Publishing. All rights reserved. Created at room temperature by X-ray irradiation at the dose of about 5 kGy radiation induced centres in stable octacalcium phosphate (OCP) obtained by double transformation of α-tricalcium ...

core  

The Calcium Phosphate−Calcium Carbonate System: Growth of Octacalcium Phosphate on Calcium Carbonates [PDF]

open access: yes, 2011
The kinetics of nucleation and crystal growth of octacalcium phosphate [Ca8(PO4)6H2·5H2O, OCP] from calcium phosphate supersaturated solutions inoculated with seed crystals was investigated at 37 °C, pH 7.40, at conditions of constant solution ...
Petros G. Koutsoukos   +5 more
core   +1 more source

A unique late-onset intraocular lens opacification 23 years after implantation: a clinical and laboratory case report

open access: yesTherapeutic Advances in Ophthalmology
We report an unusual, rare case of opacification of the hydrophilic acrylic intraocular lens (IOL) 23 years after the initial surgery with significant visual deterioration.
Panos S. Gartaganis   +4 more
doaj   +1 more source

MECHANOCHEMICAL PROPERTIES OF OCTACALCIUM PHOSPHATE AND BRUSHITE

open access: yesPhosphorus Research Bulletin, 2009
Crystalline layer-structured octacalcium phosphate (Ca8(HPO4)2(PO4)4 5H2O, OCP) and brushite (CaHPO4 2H2O, DCPD) were mechanochemically ground. The crystalline XRD pattern of OCP was weakened with grinding and reached almost amorphously after 72 h. However, the amorphously ground OCP possessed IR spectroscopic and thermogravimetric characteristics of ...
Monma, Hideki   +3 more
openaire   +2 more sources

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