Preparation and characterization of chitosan-silver/hydroxyapatite composite coatings onTiO2 nanotube for biomedical applications

2015 ◽  
Vol 332 ◽  
pp. 62-69 ◽  
Author(s):  
Yajing Yan ◽  
Xuejiao Zhang ◽  
Caixia Li ◽  
Yong Huang ◽  
Qiongqiong Ding ◽  
...  
2018 ◽  
Vol 169 ◽  
pp. 176-182 ◽  
Author(s):  
Fatih E. Baştan ◽  
Muhammad Atiq Ur Rehman ◽  
Yasemin Yıldıran Avcu ◽  
Egemen Avcu ◽  
Fatih Üstel ◽  
...  

2019 ◽  
Vol 307 ◽  
pp. 465-473 ◽  
Author(s):  
Anna Pawlik ◽  
Muhammad Atiq Ur Rehman ◽  
Qaisar Nawaz ◽  
Fatih E. Bastan ◽  
Grzegorz D. Sulka ◽  
...  

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 473
Author(s):  
Dilyana Gospodonova ◽  
Iliana Ivanova ◽  
Todorka Vladkova

The aim of this study was to prepare TiO2/Ag/Cu magnetron co-sputtered coatings with controlled characteristics and to correlate them with the antimicrobial activity of the coated glass samples. The elemental composition and distribution, surface morphology, wettability, surface energy and its component were estimated as the surface characteristics influencing the bioadhesion. Well expressed, specific, Ag/Cu concentration-dependent antimicrobial activity in vitro was demonstrated toward Gram-negative and Gram-positive standard test bacterial strains both by diffusion 21 assay and by Most Probable Number of surviving cells. Direct contact and eluted silver/coper nanoparticles killing were experimentally demonstrated as a mode of the antimicrobial action of the studied TiO2/Ag/Cu thin composite coatings. It is expected that they would ensure a broad spectrum bactericidal activity during the indwelling of the coated medical devices and for at least 12 h after that, with the supposition that the benefits will be over a longer time.


2006 ◽  
Vol 514-516 ◽  
pp. 1005-1009 ◽  
Author(s):  
José V. Araújo ◽  
J.A. Lopes da Silva ◽  
Margarida M. Almeida ◽  
Maria Elisabete V. Costa

Porous chitosan/brushite composite scaffolds were prepared by a freeze-drying technique, starting from brushite suspensions in chitosan solutions. The obtained scaffolds showed a regular macroporous and interconnected structure with brushite particles uniformly distributed in the chitosan matrix. The variation of the brushite concentration affected the microstructure of the final freeze-dried scaffold, in particular, its porosity and its average pore size. The yield strengths of the composite scaffolds could also be improved by the increase of the brushite content.


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