Results 11 to 20 of about 5,961 (172)

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

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   +2 more sources

ELECTROKINETIC PROPERTIES, IN VITRO DISSOLUTION, AND PROSPECTIVE HEMOAND BIOCOMPATIBILITY OF TITANIUM OXIDE AND OXYNITRIDE FILMS FOR CARDIOVASCULAR STENTS

Бюллетень сибирской медицины, 2015
A state of titanium oxide and oxynitride coatings on L316 steel has been studied before and after their contact with model biological fluids. Electrokinetic investigation in 1 mmol potassium chloride showed significant (more than 10 times) fall of ...
I. A. Khlusov, V. F. Pichugin, A. A. Pustovalova, M. E. Konischev, A. N. Dzyuman, M. Epple, M. Ulbricht, E. Cicinskas, V. S. Gulaya, V. V. Vikhareva   +9 more
doaj   +2 more sources

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   +2 more sources

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   +2 more sources

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

Mechanical and Corrosion Behaviour in Simulated Body Fluid of As-Fabricated 3D Porous L-PBF 316L Stainless Steel Structures for Biomedical Implants

Journal of Functional Biomaterials
Laser powder bed fusion (L-PBF) is one of the most promising additive manufacturing technologies for creating customised 316L Stainless Steel (SS) implants with biomimetic characteristics, controlled porosity, and optimal structural and functional ...
Pedro Nogueira, João Magrinho, Luis Reis, Augusto Moita de Deus, Maria Beatriz Silva, Pedro Lopes, Luís Oliveira, António Castela, Ricardo Cláudio, Jorge L. Alves, Maria Fátima Vaz, Maria Carmezim, Catarina Santos   +12 more
doaj   +2 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