Influence of Different Nanometals Implemented in PMMA Bone Cement on Biological and Mechanical Properties - Publikacja - MOST Wiedzy

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Influence of Different Nanometals Implemented in PMMA Bone Cement on Biological and Mechanical Properties

Abstrakt

Cemented arthroplasty is a common process to fix prostheses when a patient becomes older and his/her bone quality deteriorates. The applied cements are biocompatible, can transfer loads, and dampen vibrations, but do not provide antibacterial protection. The present work is aimed at the development of cement with antibacterial effectivity achieved with the implementation of nanoparticles of different metals. The powders of Ag, Cu with particles size in a range of 10–30 nm (Cu10) and 70–100 nm (Cu70), AgCu, and Ni were added to PMMA cement. Their influence on compression strength, wettability, and antibacterial properties of cement was assessed. The surface topography of samples was examined with biological and scanning electron microscopy. The mechanical properties were determined by compression tests. A contact angle was observed with a goniometer. The biological tests included an assessment of cytotoxicity (XTT test on human cells Saos-2 line) and bacteria viability exposure (6 months). The cements with Ag and Cu nanopowders were free of bacteria. For AgCu and Ni nanoparticles, the bacterial solution became denser over time and, after 6 months, the bacteria clustered into conglomerates, creating a biofilm. All metal powders in their native form in direct contact reduce the number of eukaryotic cells. Cell viability is the least limited by Ag and Cu particles of smaller size. All samples demonstrated hydrophobic nature in the wettability test. The mechanical strength was not significantly affected by the additions of metal powders. The nanometal particles incorporated in PMMA-based bone cement can introduce long-term resistance against bacteria, not resulting in any serious deterioration of compression strength.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Nanomaterials nr 12,
ISSN: 2079-4991
Język:
angielski
Rok wydania:
2022
Opis bibliograficzny:
Świeczko-Żurek B., Zieliński A., Bociąga D., Rosińska K., Gajowiec G.: Influence of Different Nanometals Implemented in PMMA Bone Cement on Biological and Mechanical Properties// Nanomaterials -Vol. 12,iss. 5 (2022), s.732-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/nano12050732
Weryfikacja:
Politechnika Gdańska

wyświetlono 60 razy

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