Results 11 to 20 of about 5,696 (125)

Strontium/copper doped nano-bioactive glass for biomedical applications [PDF]

Scientific Reports
This work is reported for the preparation and characterization of nano bioactive glass doped with copper and strontium in the system (SiO2-CaO-P2O5-CuO-SrO).Compared to traditional procedures, the Sol-gel approach offers a number of advantages for glass ...
Manar M. Ahmed, Amany A. El-Kheshen, Mona Moaness   +2 more
doaj   +2 more sources

Monitoring the stability of therapeutic ions in SBF

Open Ceramics
For the assessment of potentially bioactive materials, in vitro tests are performed in simulating body fluid (SBF) to prove its hydroxyapatite-forming ability and its biodegradability based on ions released into the solution.
H. Kaňková, A. Švančárková, L. Buňová, D. Galusek, D. Galusková   +4 more
doaj   +3 more sources

PRECIPITATION OF HYBRID HYDROXYAPATITE / AUTOFIBRIN NANOCOMPOSITES

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
Hybrid composites based on hydroxyapatite and autofibrin were synthesized by precipitation in a medium with pH=9. Soft precipitation conditions and rapid isolation of the composite precipitates favored preservation of a biopolymer matrix of autofibrin ...
I.E. Glazov, V.K. Krut’ko, R.A. Vlasov, O.N. Musskaya, L.V. Kul’bitskaya, A.I. Kulak   +5 more
doaj   +1 more source

APATITES FORMATION ON ELECTRODEPOSITED CALCIUM PHOSPHATES IN THE Ca(NO3)2 / NH4H2PO4 AND CаCO3 / Ca(H2PO4)2 SYSTEMS

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
Calcium phosphate coatings on titanium plates were obtained by electrochemical deposition at room temperature in a two-electrode cell at a constant current density of 30 mA/sm^2 and a deposition time of 10 min, and brushite coatings from Ca(NO3)2 ...
V.K. Krut’ko, A.E. Doroshenko, O.N. Musskaya, S.M. Rabchynski, A.I. Kulak   +4 more
doaj   +1 more source

Phase composition and biocompatibility of calcium phosphate coatings on titanium enriched with hydroxyapatite

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023
Calcium phosphate coatings containing brushite, calcite, and apatite were obtained by electrochemical deposition on titanium plates at room temperature, pH 5, constant current density 30 mA/cm2, from CaCO3/Ca(H2PO4)2 suspension electrolyte.
A.E. Doroshenko, V.K. Krut’ko, O.N. Musskaya, A.I. Dovnar, O.B. Ostrovskaya, E.M. Doroshenko, A.I. Kulak   +6 more
doaj   +1 more source

Simulation of Colloidal Stability and Aggregation Tendency of Magnetic Nanoflowers in Biofluids

Modelling, 2021
A population balance model for the aggregation of iron oxide nanoflowers (IONfs) is presented. The model is based on the fixed pivot technique and is validated successfully for four kinds of aggregation kernels.
Panagiotis Neofytou, Maria Theodosiou, Marios G. Krokidis, Eleni K. Efthimiadou   +3 more
doaj   +1 more source

Spirobifluorene-based polymers of intrinsic microporosity for the adsorption of methylene blue from wastewater: effect of surfactants

Royal Society Open Science, 2020
Owing to their high surface area and superior adsorption properties, spirobifluorene polymers of intrinsic microporosity (PIMs), namely PIM-SBF-Me (methyl) and PIM-SBF-tBu (tert-butyl), were used for the first time, to our knowledge, for the removal of ...
Entesar Al-Hetlani, Mohamed O. Amin, C. Grazia Bezzu, Mariolino Carta   +3 more
doaj   +1 more source

A degradation kinetics model of Mg–Zn–Mn–Ca alloys in Kokubo solution

Journal of Materials Research and Technology, 2021
In this work, a model of the degradation of the Mg–Zn–Mn–Ca alloy system in SBF (Simulated Body Fluid) is proposed by applying the isoconversion method.
Márcio Teodoro Fernandes, Leonardo Martins da Silva, Patrícia Sousa Nilo Mendes, Anderson Vergílio de Queiroz, Jose Adilson de Castro, Claudinei dos Santos   +5 more
doaj   +1 more source

Three-D core multiphysics for simulating passively autonomous power maneuvering in soluble-boron-free SMR with helical steam generator

Nuclear Engineering and Technology, 2020
Helical-coil steam generator (HCSG) technology is a major design candidate for small modular reactors due to its compactness and capability to produce superheated steam with high generation efficiency. In this paper, we investigate the feasibility of the
Ahmed Amin E. Abdelhameed, Khurrum Saleem Chaudri, Yonghee Kim   +2 more
doaj   +1 more source

Colloidal forming of macroporous calcium pyrophosphate bioceramics in 3D-printed molds

Bioactive Materials, 2020
A technique for colloidal forming of Ca2P2O7 macroporous bioceramics, based on low-pressure injection molding (LPIM) of a glycerol-water slip containing Ca2P2O7 and Ca(Н2PO4)2 into a plastic mold fabricated via FDM 3D-printing, was proposed.
Ya.Yu Filippov, E.D. Orlov, E.S. Klimashina, P.V. Evdokimov, T.V. Safronova, V.I. Putlayev, J.V. Rau   +6 more
doaj   +1 more source