64 research outputs found

    The synthesis of various heterocyclic structures based on three-component reaction of isonitriles with olefins and nitrophenols

    Full text link
    Мультикомпонентные реакции изонитрилов широко используются в органическом синтезе, так как они позволяют синтезировать соединения с образованием новых связей углерод-углерод в одну стадию, при комнатной температуре без выделения промежуточных аддуктов. Данный проект является логичным продолжением диссертационной работы соискателя, которая была посвящена реакциям Уги и Пассерини в различных средах и в присутствии катализаторов. Проведено более детальное изучение трехкомпонентной реакции изонитрилов с активированными олефинами и разнообразными нитрофенолами на границе раздела фаз органический растворитель-вода.Multicomponent reactions based on isonitriles commonly used in organic synthesis because they synthesize the compounds forming new carbon-carbon bonds in one step at room temperature, without isolating the intermediate adduct . This project is a logical continuation of the applicant's dissertation, which was dedicated to the Passerini and Ugi reactions in different solutions and in the presence of catalysts. We have carried out a detailed study threecomponent reaction of isonitriles with activated olefins and various nitrophenols at the interface of organic solvent-water.Программа развития УрФУ на 2013 год (п.2.1.2.1

    Impact of herbal supplements nowadays: an overview

    Get PDF
    At present, people around the world are looking for more natural alternatives for treating all kinds of health conditions as well as improving the general wellbeing. As such, the consumption of herbal supplements has increased globally, generating billions in revenue. The use of these herbal products is firmly rooted in the traditional use of medicinal plants for disease prevention and treatment, practiced in several cultures. Although herbal products are recognized by the WHO as an essential component of the healthcare system, there have been increasing concerns regarding their quality and safety. Generally, herbal products are not strictly regulated as they are largely categorized under dietary supplements, thus escaping the rigorous scrutiny meted out to pharmaceuticals. Notwithstanding that many consumers generally perceive herbal products as benign and inherently safe, several reports have shown that herbal products can induce mild to acute adverse effects of clinical significance. Moreover, some herbal products on the market have been reported to be contaminated with microorganisms, environmental toxins, and adulterants. Furthermore, evidence regarding the efficacy of herbal supplements is extremely discrepant

    Modern biotechnological methods in wastewater treatment: a review

    Get PDF
    Given that water is the main solvent in living organisms as well as in domestic and industrial activities, it must be treated as carefully as possible after multiple uses to get a harmless water quality. To remove the undesirable materials (e.g. organic matters, surfactants, petroleum products, unwanted metals, dyes, et.), the physicochemical water treatment process is used as the common method. This method of wastewater treatment uses flocculation – coagulation technique, which consists of mixing coagulant matters with water to collect, in solid clusters, the materials in suspension by gravity. Recently, environmental scientists have suggested biotechnology methods as the main alternatives in the treatment of wastewater, as they offer more benefits to the water quality and human health than chemical methods. This paper describes and assesses some modern biotechnology methods used in wastewater treatment

    HERBAL SUPPLEMENTS

    Full text link
    This abstract presents herbal supplements, definition, characteristics, uses, also it’s about the products of herbal supplements, the most common herbal supplements and their different uses, and also the advantages and risk to take herbal supplements, the industry an different aspects of these

    HERPES SIMPLEX VIRUS

    Full text link
    Herpes infection is the most common infection among the adult population. The causative agent of the disease is Herpes simplex virus, which affects the skin, nerve cells, and human mucous membranes. Once in the human body, pathogens accumulate and manifest themselves with a weakened immune system

    VIRUSES IN THE BIOLOGICAL WORLD

    Full text link

    Biochips: Future and Present

    Full text link
    Biochip chip technology is a product of microarray technology which has impacted development of many fields of science, especially human biology. Its application ranges from gene sequencing to disease diagnosis. This paper is going to discuss Biochip technology at present and in future

    Gray biotechnology

    Full text link
    The importance of biotechnology to the world can not be overemphasized; its emergence has helped improve the quality of people’s lives for about 10,000 years. The field itself encompasses a lot of areas such as medical, industrial, waste treatment, agricultural and environmental technology. The gray biotechnology is dedicated to environmental applications and focused on the maintenance of biodiversity and remotion of pollutants

    Biofuels: Present and Future

    Full text link
    The abstract describes biofuels in general, their benefits, both economically and environmentally. It also talks about the current issues regarding biofuel production and the future prospects and hence the need to research and explore this field

    The role of white biotechnology in obtaining secondary metabolites from edible fungi

    Full text link
    The macromycetes and among them, the edible mushrooms, offer a number of secondary metabolites with recognized biological activities. Among the various biological activities exhibited by the secondary metabolites that have been proven are: antioxidant, hypocholesterolemic, hypoglycemic, antibacterial, antiviral, regulatory activities of the cardio-vascular system, anticarcinogenic and immunomodulatory [1]
    corecore