Results 101 to 110 of about 5,177 (218)

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

Therapeutic 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, Panagiota D. Natsi, Sotirios P. Gartaganis, Petros G. Koutsoukos, Horst Helbig   +4 more
doaj   +1 more source

MECHANOCHEMICAL PROPERTIES OF OCTACALCIUM PHOSPHATE AND BRUSHITE

Phosphorus 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 ...
Hideki Monma, Toshinori Okura, Yoshihiro Hara, Yusuke Moriyoshi   +3 more
openaire   +2 more sources

Evaluation of bioactivity of octacalcium phosphate using osteoblastic cell aggregates on a spheroid culture device

Regenerative Therapy, 2016
Much attention has been paid to three-dimensional cell culture systems in the field of regenerative medicine, since three-dimensional cellular aggregates, or spheroids, are thought to better mimic the in vivo microenvironments compared to conventional ...
Takahisa Anada, Tomoya Sato, Takuo Kamoya, Yukari Shiwaku, Kaori Tsuchiya, Teruko Takano-Yamamoto, Keiichi Sasaki, Osamu Suzuki   +7 more
doaj   +1 more source

Characterization and Processing of Phosphate Rock as a Raw Material for Potential Use as Biomaterials

Ciencia e Ingeniería Neogranadina
Seventy-five percent of the phosphate rock extracted is used for the production of phosphoric acid. However, during the leaching process, it is also possible to dissolve calcium compounds, allowing for the extraction of phosphorus and calcium ions from ...
Gloria Soto Calle, Nestor Ricardo Rojas Reyes, Adrián Gómez Zapata, Sandra Díaz Bello   +3 more
doaj   +1 more source

An atomic scale comparison of the reaction of Bioglass® in two types of simulated body fluid [PDF]

, 2009
A class of melt quenched silicate glasses, containing calcium, phosphorus and alkali metals, and having the ability to promote bone regeneration and to fuse to living bone, is produced commercially as Bioglass.
FitzGerald, V., Greenspan, D., Jones, J.R., Moss, R.M., Newport, Robert J., Pickup, D.M., Wetherall, K.M.   +6 more
core  

Polylactic acid-nanocrystalline carbonated hydroxyapatite (PLA-cHAP) composite: preparation and surface topographical structuring with direct laser writing (DLW)

, 2016
The fabrication of polylactic acid (PLA)-carbonated hydroxyapatite (cHAP) composite material from synthesised phase pure nano-cHAP and melted PLA by mechanical mixing at 220-235{\deg}C has been developed in this study.
Alinauskas, Laurynas, Cicka, Roman, Drienovsky, Marian, Garskaite, Edita, Jonusauskas, Linas, Kareiva, Aivaras, Krajcovic, Jozef, Malinauskas, Mangirdas, Palcut, Marian, Stankeviciute, Zivile   +9 more
core   +1 more source

Bone regeneration by an octacalcium phosphate/gelatin composite in connection with its biodegradable properties

European Cells & Materials
Bone grafting is a widely utilized treatment for bone defects and augmentation of bone fusion, and the development of bone substitute materials with superior osteogenic potential is of significant interest as an alternative to autogenous bone grafting ...
Osamu Suzuki, Yu Mori, Ryo Hamai, Ryuichi Kanabuchi, Toshimi Aizawa   +4 more
doaj   +1 more source

Degradation processes of reinforced concretes by combined sulfate--phosphate attack [PDF]

A novel form of alteration due to the interaction between hydrated cement phases and sulfate and phosphate-based pollutants is described, through the characterization of concrete samples from an industrial reinforced concrete building. Decalcification of
Lampronti, Giulio Isaaco, Maritan, Lara, Schlegel, Moritz-Caspar, Secco, Michele, Zorzi, Federico   +4 more
core   +1 more source

Mechanism of Hydrolysis of Octacalcium Phosphate [PDF]

, 1989
The chemical and structural properties of hydrolyzed octacalcium phosphate (OCP) appear to be of high relevance to tooth, bone and pathological bioapatites. Hydrolysis of synthetic well-crystallized OCP was studied at constant pH by using the pH stat method over the 6.1 to 8.6 range at 50°C and to a lesser extent at 37°C.
Tomazic, B. B., Tung, M. S., Gregory, T. M., Brown, W. E.   +3 more
openaire  

The identification of the inorganic components in the calcareous corpuscles from Mesocestoides corti [PDF]

, 1968
The inorganic components in calcareous corpuscles from Mesocestoides corti have been identified by use of powder x-ray diffraction and emission spectroscopy.
Kegley, Larry M.
core   +1 more source