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Wyszukujesz frazę "phosphonates" wg kryterium: Temat

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    Wyświetlanie 1-2 z 2
    Tytuł:
    Fluorowane aminofosfoniany
    Fluorinated aminophosphonates
    Autorzy:
    Cytlak, Tomasz
    Kaźmierczak, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/172801.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    fluor
    fosfoniany
    aminofosfoniany
    fluorine
    phosphonates
    aminophosphonates
    Opis:
    Aminophosphonates and aminophosphonic acids are important substrates in the study of biochemical processes. They have found a wide range of applications as enzyme inhibitors, agrochemicals and pharmaceuticals in the areas of biological and medicinal chemistry. Due to the unique properties of fluorine atom, such as high electronegativity and electron density, its presence in aminophosphonates’ moiety can influence chemical reactivity, biological activity, metabolic stability, chemical bonding ability and solubility. Recently, special interest has been focused on synthesis of fluorinated aminophosphonates due to their promising applications in the fields of bioorganic chemistry. Many of these compounds exhibit antitumor, antibacterial and antifungal activities [1-3].
    Źródło:
    Wiadomości Chemiczne; 2020, 74, 3-4; 203-230
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biodegradacja związków fosfonowych przez grzyby
    Biodegradation of phosphonates by fungi
    Autorzy:
    Wieczorek, Dorota
    Lipok, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/172438.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    związki fosfonowe
    biotransformacja
    biodegradacja
    grzyby
    phosphonates
    biotransformation
    biodegradation
    fungi
    Opis:
    Phosphonates are the group of organophosphorus compounds, which are characterized by the presence of covalent bond(s) between carbon and phosphorus atom in their structure. Both; the natural and synthetic phosphonic compounds, are encountered in various ecosystems, however because of their wide range of applications, the latter ones are considerably more frequently discussed. Regarding the broad spectrum of biological activity, capability to chelate metal cations and environmental stability of direct carbon to phosphorus bond under physiological conditions, phosphonic compounds found a variety of applications e.g. as pesticides, drugs, anticorrosive agents, additives to surfactants and flame resistant (partially)polymers. Such massive use of phosphonates, together with mentioned environmental stability of those compounds, results in their common presence as xenobiotic environmental pollutants. Scientific efforts dedicated to recognising the fate and biodegradation of phosphonic compounds in the environment had begun in 80’s last century. Currently it is known that many microorganisms, mainly bacteria, but also fungi, are able to decompose the C-P bond. Interestingly however, the number of known species of fungi that are able to biodegrade and/or to bio-transform the phosphonates, is relatively low. It seems to be surprising, because especially the fungi are known from their impressive skills to adaptation to various nutritional conditions. Such a thesis may be supported by the fact that the process of biodegradation of phosphonates may occur via several pathways. Enzymes which are known to catalyse this process are phosphonoacetaldehyde hydrolase, phosphonoacetate hydrolase, phosphonopyruvate hydrolase and C-P lyase complex. This article briefly presents the issue of degradation pathways of phosphonates, and the role of phosphonate- degrading fungi.
    Źródło:
    Wiadomości Chemiczne; 2020, 74, 1-2; 33-55
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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