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    Wyświetlanie 1-3 z 3
    Tytuł:
    Mechanical and biological assessment of carbon fiber-reinforced PEEK composite materials intended for laryngeal prostheses
    Autorzy:
    Smolka, Wojciech
    Markowski, Jarosław
    Dworak, Michał
    Gubernat, Maciej
    Blazewicz, Marta
    Powiązania:
    https://bibliotekanauki.pl/articles/284528.pdf
    Data publikacji:
    2019
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Źródło:
    Engineering of Biomaterials; 2019, 22, no.153; 62
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanical and biological properties of carbon fiber-reinforced peek composite materials intended for laryngeal prostheses
    Autorzy:
    Smółka, Wojciech
    Dworak, Michał
    Noworyta, Bartłomiej
    Gubernat, Maciej
    Markowski, Jarosław
    Błażewicz, Marta
    Powiązania:
    https://bibliotekanauki.pl/articles/285375.pdf
    Data publikacji:
    2019
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    composite materials
    PEEK
    mechanical properties
    cells viability
    Opis:
    The work deals with the mechanical properties and biological behaviour of composite materials made of polyether ether ketone (PEEK) polymer and carbon fibers (CF) designed for laryngeal biomaterials. Two types of PEEK–based matrix composites containing carbon fibers in the form of cloth (2D) and short fibers (MD) were made. The composite samples were obtained via hot mol-ding of PEEK/CF prepregs. Mechanical durability of the composite samples aging in Ringer’s solution at 37oC was analyzed. The samples were dynami-cally loaded under bending force up to 106 cycles. The ultrasonic wave propagation method was applied to study changes in the composites. The mechanical changes were analyzed, taking into consideration the anisotropic structure of the composite samples. The layered composite samples were modified with multiwalled carbon nanotubes (CNTs). The changes in mechanical stability of the composite samples were not significant after fatigue testing up to 1·106cycles. The biological tests were carried out in the presence of hFOB-1.19-line human osteoblasts and HS-5-line human fibroblasts. The level of type I collagen produced from both types of cells was determined by ELISA test. The tests showed differen-ces between the samples with regard to the viability of the cells.
    Źródło:
    Engineering of Biomaterials; 2019, 22, 151; 2-8
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cartilage tissue examination using atomic force microscopy
    Autorzy:
    Paluch, Jarosław
    Markowski, Jarosław
    Pilch, Jan
    Smółka, Wojciech
    Jasik, Krzysztof Piotr
    Kilian, Filip
    Likus, Wirginia
    Bajor, Grzegorz
    Chrobak, Dariusz
    Glowka, Karsten
    Starczewska, Oliwia
    Powiązania:
    https://bibliotekanauki.pl/articles/27324036.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    atomic force microscopy
    cartilage
    biopolymers
    chondrocytes
    intercellular matrix
    mikroskop
    biopolimery
    tkanka
    Opis:
    Life sciences, a field closely intertwined with human biology and physiology, employ various research methods, including morphology studies and quantitative analysis through non-destructive techniques. Biological specimens often consist of three-phase structures, characterized by the presence of gas, liquid, and solid components. This becomes crucial when the chosen research methodology requires the removal of water from samples or their transfer to a cryostat. In the current research, mechanical and topographical examination of cartilage was performed. The materials were generously provided by the Department of Anatomy at the Medical University of Silesia, thereby eliminating any concerns regarding their origin or ethical use for scientific purposes. Our research methodology involved the application of atomic force microscopy (AFM), which minimally disrupts the internal equilibrium among the aforementioned phases. Cartilage, recognized as a ‘universal support material’ in animals, proves to be highly amenable to AFM research, enabling the surface scanning of the examined material. The quantitative results obtained facilitate an assessment of the internal structure and differentiation of cartilage based on its anatomical location (e.g., joints or ears). Direct images acquired during the examination offer insights into the internal structure of cartilage tissue, revealing morphological disparities and variations in intercellular spaces. The scans obtained during the measurements have unveiled substantial distinctions, particularly in the intercellular ‘essence’, characterized by granularities with a diameter of approximately 0.5 μm in ear cartilage and structural elements in articular cartilage measuring about 0.05 μm. Thus, AFM can be a valuable cognitive tool for observing biological samples in the biological sciences, particularly in medicine (e.g. clinical science).
    Źródło:
    Engineering of Biomaterials; 2022, 25, 167; 17--23
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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