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Cryochemical Synthesis of Tricalcium Phosphate Powders and Mixed Sodium-Containing Silicophosphates and Phosphate-Germanates for Formation of Bioceramics Using Stereolithographic 3D Printing
AbstractThe issues of synthesis of highly dispersed chemically homogeneous powders based on glaserite-like phases in the CaO–Na 2 O–P 2 O 5 –SiO 2 (GeO 2 )...
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Cryochemical Modification of Medicinal Substances: The Effect of the Carrier Gas Flow Rate on the Physicochemical Properties of Nanoforms of the Antibacterial Drug Dioxidine
AbstractA combined cryochemical method is proposed for the dimensional and structural modification of drugs. This method forms a molecular flow of a...
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Synthesis of Iron Oxide Nanoparticles by Thermal Decomposition of Cryochemically Modified Precursors
AbstractHighly dispersed powders of superparamagnetic iron oxides of various morphologies are obtained by the thermal decomposition of formate and...
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Biopolymer Controlled Release Systems Based on Hydrolyzed Collagen: Cryoforming, Structure, and Properties
AbstractBiopolymer materials based on natural collagen (gelatin, hydrolyzed collagen) are widely used in the food, pharmaceutical, and cosmetic...
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The Synthesis of Maghemite Nanoparticles by Thermal Decomposition of Cryochemically Modified Iron(III) Acetylacetonate
AbstractMaghemite nanoparticles of 40 to 150 nm are obtained by the thermal decomposition of preliminarily cryochemically modified iron...
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Cryochemical modification, activity, and toxicity of dioxidine
Dioxidine nanoparticles are prepared via cryochemical modification of the pharmacopoeial dioxidine substance. The form of the cryomodified dioxidine...
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Low-Temperature Synthesis and Antibacterial Activity of Hybrid Systems of Gentamicin Sulfate with Copper and Iron Nanoparticles
AbstractCryochemical modification methods are used to obtain hybrid composites of the antibacterial drug gentamicin sulfate, as well as copper and...
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Synthesis of Dispersed Mesoporous Powders of Solid Solution Zr0.88Ce0.12O2 for Catalyst Carrier of the Conversion of Methane to Synthesis-Gas
AbstractThe xerogels in the system 0.88 mol % ZrO 2 –0.12 mol % CeO 2 were obtained by the method of coprecipitation in a neutral (pH 7) and slightly...
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Production of Chemically Pure Zirconia-Based Nanoceramics in the ZrO2(Y2O3)–Al2O3 System for Restorative Dentistry
AbstractThe synthesis technology of a chemically pure nanodisperse precursor powder (10–12 nm) based on a tetragonal solid zirconia ( t -ZrO 2 )...
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Silver-Based Hybrid Nanomaterials: Preparations, Biological, Biomedical, and Environmental Applications
Nanozymes, or artificial enzymes, have received a great deal of attention in recent years because of their superior enzyme-like capabilities over...
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Unique Research Facility “Gammatok-100”
AbstractThe main results of successful 30-year’s working on the Gammatok-100 radiation research facility at the Institute of Problems of Chemical...
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Cryochemical synthesis and antibacterial activity of a hybrid composition based on Ag nanoparticles and dioxidine
Hybrid nanocomposites based on an dioxidine antimicrobial substance modified with silver were produced by means of cryochemical synthesis. TEM,...
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Cryochemical modification of drugs: Nanosized form III piroxicam and its physical and chemical properties
Dynamic sublimation in a stream of heated carrier gas and low-temperature condensation are used to perform structural and dimensional modification of...
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Obtaining ultradispersed dioxidine powder modified via cryochemical synthesis and determining its antibacterial activity
One way to increase bioavailability and efficiency of drug substances is to decrease their particles up to nanoscale level and to change their...
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Mesoporous Powders for Catalyst Supports Produced from Al2O3–ZrO2 (Y2O3) System
The liquid-phase method for synthesis of disperse mesoporous powders from the Al 2 O 3 –ZrO 2 (Y 2 O 3 ) system is developed. It is shown that cryotreatment...
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Functional Composites: Low-Temperature Extraction-Pyrolysis Synthesis and Its Properties
Prospects of applying the extraction-pyrolysis method to fabricate complex oxide composites, including nanoscaled ones, based on rare-earth elements,...
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Structural Aspect of Glass Formation in Aqueous Electrolyte Glass-Forming Systems
Water–electrolyte systems containing aqueous solutions of Group I–III metal, transition metal, and lanthanide nitrates, iodates, sulfates, acetates,...
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Modification of ultra-high-molecular-weight polyethylene with nanoparticles of titanium subgroup metal oxides
A method for modifying ultra-high-molecular-weight polyethylene with nanoparticles of titanium subgroup metal oxides was considered, which consists...
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Spontaneous formation of free radicals in cryochemical reactions of halogenation of hydrocarbons and nanomaterials
A range of issues related to free-radical processes in polymer-monomer systems is considered. Spectral (EPR, IRS) and other physicochemical methods...
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Partially stabilized zirconium dioxide xerogels and nanocrystalline ceramics for restorative dentistry
An innovative technology of synthesis of nanodispersed (8–10 nm) powders based on tetragonal zirconium dioxide modification ( t -ZrO 2 ) with a high...