Results 21 to 30 of about 49,661 (331)

Effects of immobilized VEGF on endothelial progenitor cells cultured on silicon substituted and nanocrystalline hydroxyapatites [PDF]

open access: yes, 2016
Vascular endothelial growth factor (VEGF) plays an essential role in angiogenesis and vascular homeostasis. Endothelial progenitor cells (EPCs) are primitive bone marrow cells participating in neovascularization and revascularization processes, which ...
Arcos Navarrete, Daniel   +7 more
core   +2 more sources

Bone mineral: update on chemical composition and structure [PDF]

open access: yes, 2009
Bone mineral: update on chemical composition and ...
Combes, Christèle   +3 more
core   +2 more sources

Biomimetic chitosan/alginate with zinc and strontium hydroxyapatite for periodontal regeneration application [PDF]

open access: yesNanomedicine Journal
Objective(s): To evaluate the potential of a novel alginate/chitosan/Zinc-strontium hydroxyapatite (AG/CS/SHA) composite scaffold for periodontal tissue regeneration by assessing its biocompatibility, bioactivity, and degradation characteristics ...
Suresh Munusamy   +3 more
doaj   +1 more source

Early in vitro response of macrophages and T lymphocytes to nanocrystalline hydroxyapatites [PDF]

open access: yes, 2014
Hypothesis: Synthetic hydroxyapatite (HA) and Si substituted hydroxyapatite (SiHA) are calcium phosphate ceramics currently used in the field of dentistry and orthopaedic surgery.
Alcaide   +47 more
core   +2 more sources

Lactic Acid Conversion to Acrylic Acid Over Fluoride-Substituted Hydroxyapatites

open access: yesFrontiers in Chemistry, 2020
One of the most interesting intermediates for the chemical industry is acrylic acid, which can be derived from lactic acid by catalytic dehydration in the gas phase.
Robert Wojcieszak   +4 more
doaj   +1 more source

Multifunctional Composite Materials (with Consolidation, Self-Cleaning and Antimicrobial Properties) Applicable for the Preservation of Inorganic Substrates

open access: yesProceedings, 2023
The aim of this study is to synthesize different polymeric solutions by mixing different types of polymers, metallic oxides and hydroxyapatites in different ratios suspended in alcoholic solutions and to evaluate the effectiveness of the obtained ...
Toma Fistos   +10 more
doaj   +1 more source

Effect of pH and temperature on the morphology and phases of co-precipitated hydroxyapatite [PDF]

open access: yes, 2012
This paper reports a high-yield process to fabricate biomimetic hydroxyapatite nano-particles or nano-plates. Hydroxyapatite is obtained by simultaneous dripping of calcium chloride and ammonium hydrogen phosphate solutions into a reaction vessel ...
AG Evans   +24 more
core   +2 more sources

Potencial of different hydroxyapatites as biomaterials in the bone remodeling [PDF]

open access: yesActa Cirúrgica Brasileira, 2018
Purpose: To analyze the therapeutic potentials of different hydroxyapatites used for the correction of bone defects in rats. Methods: Forty rats, male, albino wistar, were distributed in 4 groups. They were submitted to a 3.5 mm defect in tibia.
Pedro Carvalho Cassino   +7 more
doaj   +1 more source

High Zn content of Randall's plaque: A μ-X-ray fluorescence investigation [PDF]

open access: yes, 2011
Kidney stone disease, or nephrolithiasis, is a common ailment. Among the different risk factors usually associated with nephrolithiasis are dehydration, metabolic defects (especially with regard to calcium and oxalate).
Albouy, Pierre-Antoine   +7 more
core   +2 more sources

Biocompatibility of a novel hydroxyapatite-based endodontic sealer enriched with silicon and strontium ions in rats [PDF]

open access: yesJournal of Dental Materials and Techniques
Objective: This study aimed to evaluate the biocompatibility of a novel bioceramic endodontic sealer formulation, combining tricalcium silicate/dicalcium silicate, silicon hydroxyapatite, and strontium hydroxyapatite.Methods: Sixty polyethylene tubes ...
Mina Zarei   +4 more
doaj   +1 more source

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