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- W2402049649 abstract "In this investigation, we combined the good mechanical properties of the titanium (Ti) alloy Ti6Al4V with the biological properties, namely bioactivity, of the polymer poly(sodium styrene sulfonate) (poly(NaSS)). By chemically grafting the poly(NaSS) on the surface of the Ti alloy we generated biofunctionalized biomaterials. On these substrates, the MC3T3-E1 osteoblast-like cells response was followed in the presence and absence of individual proteins and important information about the competitive behavior of proteins and their effect on the cell development was uncovered. In serum free medium conditions, poly(NaSS) influenced positively the cells response, by enhancing their attachment strength and by extending their viability and inherent morphology. Fn together with poly(NaSS) was found to play a major role in the cell early attachment, even when in double depleted medium. It was also seen, that poly(NaSS) alters the proteins conformation by increasing the exposure of active binding sites, such as the RGD peptide in the Fn molecule, and this way promoting integrin-mediated cell attachment. Between all proteins, Col I was found to stimulate more significantly the osteoblast-like cells matrix mineralization, by increasing the alkaline phosphatase activity and the calcium and phosphate productions. Grafted surfaces pre-adsorbed with Fn & Col I mixtures promoted the cell cytoplasmatic expansion, attachment strength, differentiation and mineralization. The competitive behavior of Fn and Col I was seen to prevail over BSA. In summary, the poly(NaSS) together with the Ti6Al4V material offers a promising solution for fast biomaterial osteointegration to be used in the orthopedic and dental fields." @default.
- W2402049649 created "2016-06-24" @default.
- W2402049649 creator A5076705434 @default.
- W2402049649 date "2014-10-02" @default.
- W2402049649 modified "2023-09-27" @default.
- W2402049649 title "Synthesis and grafting of bioactive polymers to create biomimetic surfaces which can control the host response : Study of the biological mechanisms from the origin of the observed activity" @default.
- W2402049649 hasPublicationYear "2014" @default.
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