The removal of pollutants, including heavy metals, from the aquatic environment is an urgent problem worldwide. Actively developing nanotechnology areas is becoming increasingly important for solving problems in the field of the remediation of aquatic ecosystems. In particular, methods for removing pollutants using nanoparticles (NPs) are proposed, which raises the question of the effect of a combination of NPs and heavy metals on living organisms.
View Article and Find Full Text PDFObjective: Aim: To study the dynamics of indicators of the functional state and health of technical specialties students during their long-term running engagement.
Patients And Methods: Materials and Methods: The research involved 112 students (59 men and 53 women) aged 17-20 years. Two groups of students were formed: group 1 included students who, in addition to compulsory academic physical education training sessions, were not engaged in any type of motor activity on their own; group 2 included students who independently were engaged in recreational running 3 times a week in extracurricular time.
Crystalline cerium(III) phosphate (CePO), cerium(IV) phosphates, and nanocrystalline ceria are considered to be promising components of sunscreen cosmetics. This paper reports on a study in which, for the first time, a quantitative comparative analysis was performed of the UV-shielding properties of CePO, Ce(PO)(HPO)(HO), and CePO/CeO composites. Both the sun protection factor and protection factor against UV-A radiation of the materials were determined.
View Article and Find Full Text PDFTheir unique physicochemical properties and multi-enzymatic activity make CeO nanoparticles (CeO NPs) the most promising active component of the next generation of theranostic drugs. When doped with gadolinium ions, CeO NPs constitute a new type of contrast agent for magnetic resonance imaging, possessing improved biocatalytic properties and a high level of biocompatibility. The present study is focused on an in-depth analysis of the enzyme-like properties of gadolinium-doped CeO NPs (CeO:Gd NPs) and their antioxidant activity against superoxide anion radicals, hydrogen peroxide, and alkylperoxyl radicals.
View Article and Find Full Text PDFTextiles and nonwovens (including those used in ventilation systems as filters) are currently one of the main sources of patient cross-infection. Healthcare-associated infections (HAIs) affect 5-10% of patients and stand as the tenth leading cause of death. Therefore, the development of new methods for creating functional nanostructured coatings with antibacterial and antiviral properties on the surfaces of textiles and nonwoven materials is crucial for modern medicine.
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