Visualization of 2D and 3D Tissue Models via Size-Selected Aqueous AgInS/ZnS Quantum Dots.

Three-dimensional (3D) spheroid cell cultures of fibroblast (L929) and tumor mammary mouse (4T1) were chosen as in vitro tissue models for tissue imaging of ternary AgInS/ZnS fraction quantum dots (QDs). We showed that the tissue-mimetic morphology of cell spheroids through well-developed cell-cell and cell-matrix interactions and distinct diffusion/transport characteristics makes it possible to predict the effect of ternary AgInS/ZnS fraction QDs on the vital activity of cells while simultaneously comparing with classical two-dimensional (2D) cell cultures. The AgInS/ZnS fractions, emitting in a wide spectral range from 635 to 535 nm with a mean size from ∼3.

Green Extraction of Graphene from Natural Mineral Shungite.

Conventional fabrication methods to produce graphene are cumbersome, expensive, and not ecologically friendly. This is due to the fact that the processing of a large volume of raw materials requires large amounts of acids and alkalis which, in turn, require special disposal. Therefore, it is necessary to develop new technologies or to refine existing ones for the production of graphene-and to create new, ecologically-safe and effective methods.

Green-Graphene Protective Overlayer on Optical Microfibers: Prolongs the Device Lifetime.

Optical microfibers find new applications in various fields of industry, which in turn require wear resistance, environmental friendliness and ease of use. However, optical microfibers are fragile. Here we report a new method to prolong the microfiber lifetime by modifying its surface with green-extracted graphene overlayers.

Nrf2/ARE Activators Improve Memory in Aged Mice via Maintaining of Mitochondrial Quality Control of Brain and the Modulation of Gut Microbiome.

Aging is one of the most serious factors for central nervous dysfunctions, which lead to cognitive impairment. New highly effective drugs are required to slow the development of cognitive dysfunction. This research studied the effect of dimethyl fumarate (DMF), methylene blue (MB), and resveratrol (RSV) on the cognitive functions of 15-month-old mice and their relationship to the maintenance of mitochondrial quality control in the brain and the bacterial composition of the gut microbiome.

Effect of Crude Oil on Growth, Oxidative Stress and Response of Antioxidative System of Two Rye ( L.) Varieties.

Rye ( L.) is one of the most important cereal crops in Eastern and Northern Europe, showing better tolerance to environmental stress factors compared to wheat and triticale. Plant response to the crude oil-polluted soil depends on plant species, oil concentration, time of exposure, etc.

ABNORMAL UTERINE BLEEDING IN ADOLESCENTS: CURRENT STATE OF THE PROBLEM.

Objective: The aim: To summarize the literature data on abnormal uterine bleeding in adolescents.

Patients And Methods: Materials and methods: This article presents an assessment of 32 literary sources from 2003 to 2018, which raise the issues of etiology and pathogenesis of abnormal uterine bleeding in adolescents. Abnormal uterine bleeding in adolescents (AUBA) is a risk factor for disorders of menstrual and generative function, hormone-related abnormalities in the reproductive age.

Improvement of Phenolic Compounds, Essential Oil Content and Antioxidant Properties of Sweet Basil ( L.) Depending on Type and Concentration of Selenium Application.

The effect of selenium biofortification on phytomass yield, selenium, essential oil and phenolic compounds content as well as antioxidant properties of basil leaves was investigated. Selenium in form of sodium selenate was applied either in nutrient solution or by foliar spraying at three levels (2.0, 5.