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Mysterious Amorphous State of Native Granules of Polyhydroxyalkanoates and Its Transitions Into Crystalline State

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F18%3APU128405" target="_blank" >RIV/00216305:26310/18:PU128405 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.slsz.cz/icct2018/START.htm" target="_blank" >http://www.slsz.cz/icct2018/START.htm</a>

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Mysterious Amorphous State of Native Granules of Polyhydroxyalkanoates and Its Transitions Into Crystalline State

  • Original language description

    Polyhydroxyalkanoates (PHA) are hydrophobic polyesters of hydroxyalkanoic acids produced and accumulated by numerous microorganisms in form of intracellular granules. Surface of the granules is covered by the layer of proteins which serve as a border between hydrophobic PHA and aqueous cytoplasm. Bacteria cells are producing and degrading this polymer simultaneously. Therefore, even where the content of polymer reaches up to 90%wt of cellular dry matter, the cell maintains also the concentration of monomer on a significant level. The role of PHA is not only as carbon or energy storage but due to our previous findings, the PHA has also protective effect on bacteria cells of Cupriavidus necator H16 against temperature, UV, osmotic stress etc. These all stunning properties are closely associated with its physical amorphous character. It can be assumed that the granules maintain its amorphous state thanks to presence of low molecular plasticizers (e.g. water, monomer molecules) despite of thermodynamical

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • CEP classification

  • OECD FORD branch

    20903 - Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials

Result continuities

  • Project

    <a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů