نتایج جستجو برای: titanium substrates

تعداد نتایج: 114523  

2005
S. M. Lee J. Krim

The morphology of copper films grown on quartz, mica, and Ti/quartz has been investigated by means of scanning tunneling microscopy (STM). Films grown on quartz, both bare and pre-plated with titanium, are characterized by self-affine fractal scaling behavior over the length scale of 10 ̈500 nm, while films grown on mica are not. Annealing of the films to 340 -C reduces the root-mean-square (RMS...

Journal: :Applied and environmental microbiology 2006
Ming-Show Wong Wen-Chen Chu Der-Shan Sun Hsuan-Shun Huang Jiann-Hwa Chen Pei-Jane Tsai Nien-Tsung Lin Mei-Shiuan Yu Shang-Feng Hsu Shih-Lien Wang Hsin-Hou Chang

The antibacterial activity of photocatalytic titanium dioxide (TiO(2)) substrates is induced primarily by UV light irradiation. Recently, nitrogen- and carbon-doped TiO(2) substrates were shown to exhibit photocatalytic activities under visible-light illumination. Their antibacterial activity, however, remains to be quantified. In this study, we demonstrated that nitrogen-doped TiO(2) substrate...

Journal: :Acta biomaterialia 2007
J J J P van den Beucken X F Walboomers S C G Leeuwenburgh M R J Vos N A J M Sommerdijk R J M Nolte J A Jansen

This study describes the effect of multilayered DNA coatings on (i) the formation of mineralized depositions from simulated body fluids (SBF); and (ii) osteoblast-like cell behavior with and without pretreatment in SBF. DNA coatings were generated using electrostatic self-assembly, with poly-d-lysine or poly(allylamine hydrochloride) as cationic polyelectrolytes, on titanium substrates. Coated ...

2014
Marta S Laranjeira Ângela Carvalho Alejandro Pelaez-Vargas Derek Hansford Maria Pia Ferraz Susana Coimbra Elísio Costa Alice Santos-Silva Maria Helena Fernandes Fernando Jorge Monteiro

Dental ceramic implants have shown superior esthetic behavior and the absence of induced allergic disorders when compared to titanium implants. Zirconia may become a potential candidate to be used as an alternative to titanium dental implants if surface modifications are introduced. In this work, bioactive micropatterned silica coatings were produced on zirconia substrates, using a combined met...

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