Electrophoretic Deposition of Nanostructured Titania-Bioactive Glass/Alginate Coatings on Stainless Steel

An alginate (Alg) based coating containing nanoparticles of titania (nTiO2) and bioactive glass 45S5 (nBG) was deposited on stainless steel substrates by electrophoretic deposition (EPD). The composite nTiO2-nBG/Alg coating developed for potential biomedical applications, was produced from a stable...

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Veröffentlicht in:Key Engineering Materials 2015-07, Vol.654, p.159-164
Hauptverfasser: Cabanas-Polo, Sandra, Cordero-Arias, Luis, Boccaccini, Aldo Roberto, Virtanen, Sannakaisa
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container_end_page 164
container_issue
container_start_page 159
container_title Key Engineering Materials
container_volume 654
creator Cabanas-Polo, Sandra
Cordero-Arias, Luis
Boccaccini, Aldo Roberto
Virtanen, Sannakaisa
description An alginate (Alg) based coating containing nanoparticles of titania (nTiO2) and bioactive glass 45S5 (nBG) was deposited on stainless steel substrates by electrophoretic deposition (EPD). The composite nTiO2-nBG/Alg coating developed for potential biomedical applications, was produced from a stable ethanol/water suspension (ζ–potential of-53±13mV) using 7V of deposition potential and 1min of deposition time as optimal conditions. Morphology and composition of the coatings were studied by FTIR, EDX, SEM and XRD, showing that all components were successfully deposited on the final coating. According to TG analysis the coatings presents a 62.4wt% of ceramic phase and 37.6wt% polymer. The coating shows corrosion protection properties compared with the bare uncoated material when analyzed via polarization curves in Dulbecco ́s MEM.
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subjects Alginates
Coatings
Deposition
Electrophoretic deposition
Glass
Nanostructure
Stainless steels
Titanium dioxide
title Electrophoretic Deposition of Nanostructured Titania-Bioactive Glass/Alginate Coatings on Stainless Steel
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