A5082528222- Advanced Nanomaterials in Catalysis
- Catalytic Processes in Materials Science
- Nanocluster Synthesis and Applications
- Electrochemical sensors and biosensors
- Nanoparticles: synthesis and applications
- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Luminescence Properties of Advanced Materials
- Lanthanide and Transition Metal Complexes
- Cholinesterase and Neurodegenerative Diseases
- Advanced biosensing and bioanalysis techniques
- Electronic and Structural Properties of Oxides
- Analytical Chemistry and Sensors
- Organoselenium and organotellurium chemistry
- Carbon and Quantum Dots Applications
Ural Federal University
2018-2023
Radiotherapy plays an important role in cancer treatment and has some challenges, such as tumor tissue radioresistance damage of healthy cells. Radiosensitizers are intended to increase the susceptibility cells ionizing radiation enhance effectiveness radiotherapy. Cerium oxide nanoparticles (CONPs) exhibit properties radiosensitizers radioprotectors. The CONPs were found radiosensitivity Hela simultaneously protect from oxidative stress. results show enzyme-like ROS inhibition. inhibition...
The work is devoted to the synthesis and study of physicochemical properties nanocrystalline cerium sols prepared on its basis. It was shown that stabilization dioxide nanoparticles using maltodextrin allows obtain more stable finely dispersed sols, which can find their application in medical-biological industry.
The study on physicochemical properties of maltodextrin-coated cerium oxide nanoparticles was carried out. surface structure and CeO 2 were investigated. ability to perform the functions catalase peroxidase enzymes, as well inactivate hydroxyl radicals shown. Keywords: nanoparticles, oxide, catalytic activity, antioxidant activity.
Abstract The study on luminescent and optical properties of ceria nanoparticles allow one to indirectly assess the defectiveness material crystal lattice. decomposition luminescence spectrum in Gaussian bands shows presence Ce 3+ ions CeO 2 lattice, as well active centers, probably associated with oxygen vacancies. These characteristics permit us estimate relative amount lattice could be considered an important prerequisite for use redox agents industry medicine.
Cerium dioxide nanoparticles are a promising material in many industries, for example, catalysis, chemical industry, biomedicine. ions located on the surface of easily enter into redox reactions. To increase activity such nanoparticles, it is necessary to nonstoichiometry by increasing ratio Ce3+/Ce4+ ions. The non-stoichiometric cerium an important issue their catalytic activity. Annealing reducing atmosphere has been proposed as method concentration Ce3+/Ce4+.
Cerium oxide (CeO2) nanoparticles present an interesting material for various applications in biotechnology and medicine.The mechanism of CeO2 biological activity is supposed to be related the presence both Ce 3+ 4+ ions on surface nanocrystal.We studied compared catalytic synthesized by chemical physical methods.The cerium was found demonstrate catalase-like peroxidase activity.CeO2 obtained a method showed more pronounced properties.In addition, this catalyzed decomposition hydrogen...
Abstract Gd 2 O 3 , SiO -Gd and -MnO nanoparticles were produced by the method of pulsed electron evaporation oxide targets with condensation vapors in a vacuum. These materials are considered as probable contrast agents for magnetic resonance imaging (MRI). The exhibit rather high r1 r2 relaxivities. results point to potential using nanocrystals MRI diagnosis. mesoporous nanostructures could be multimodal theranostic agents.
Polymer composites films based on cerium oxide nanoparticles were obtained. Xanthan gum polysaccharide was used as a matrix. The properties of the evaluated using optical microscopy and spectrophotometry. Optical shows homogenous dispersion with increasing size some agglomeration. UV- visible spectrum polymer exhibit red shift in band gap respect to pure xanthan blue CeO2 nanoparticles.
Cerium oxide nanoparticles present an interesting material for different industrial applications in biotechnology and medicine. The CeO2 nanopowder was produced by the method of pulsed electron evaporation ceramic targets with condensation vapors a low pressure gas. modification nanoparticle surface made sodium citrate N-phosphonomethylaminodiacetic acid. stable aqueous suspensions could not be obtained work. This is probably due to high hydrophobic properties surface. cerium stabilizers...
In recent years cerium dioxide nanoparticles (CDNPs) has received increasing attention due to their ability act as enzymes in the living organisms. Their biological activity is determined by presence of mixed valence states and oxygen vacancies on surface. Therefore, physicochemical properties surface are key element influencing systems. The use various stabilizers synthesis can lead modification and, a consequence, change or complete loss activity. an important problem for medical choice...
Cerium dioxide nanoparticles can be used as a photodegradable agent due to the possibility of Ce3+ – Ce4+ transition. Activity cerium depend on many factors, such size and shape, their non- stoichiometry, which method preparation post-processing. The aim this work was evaluate photocatalytic activity nanoparticles. To change degree were annealed at 600 °C. It shown that have higher compare pure