Biofouling control of titanium by microroughness reduction

Abstract

The effects of repeated pickling and polishing on biofouling of titanium surfaces were investigated using a confocal laser scanning microscope (CLSM) and standard microbiological methods. Titanium surfaces (i) once pickled (control), (ii) repeatedly pickled (five pickling cycles of 5 min duration) and (iii) polished (surface finish of 1000 grit silicon carbide paper) were exposed to seawater. A decrease of one order of magnitude in bacterial and algal attachment was recorded on the repeatedly pickled and polished titanium surfaces compared to the control surfaces. Statistical analysis of the data was carried out using MYSTAT software involving Tukey-Kramer Multiple CLSM used as an effective tool to measure the microroughness of the test surfaces as well as to quantify the biofilm forming tendency on these surfaces. The results indicated that microroughness reduction leads to significant decrease in biofouling.

Effect of duty cycle on the crystallinity, pore size, surface roughness and corrosion resistance of the anodized surface on titanium

“…The pre-anodization dip of specimens in a nitric acid-hydrofluoric acid solution has been reported in previous studies and is used to clean the specimen of any remaining residues. [46,[49][50][51] …”

A silver nanoparticle loaded TiO2 nanoporous layer for visible light induced antimicrobial applications

“…The density of viable bacteria on the AgNP loaded TiO 2 layer was the lowest compared with anodized and polished Ti samples. The TiO 2 layer showed minimum antimicrobial property in visible light which may be related to surface topography and surface chemistry of the TiO 2 layer [33]. As can be seen from Table 2 and Fig.…”

Sonophysical cost effective rapid indigenous preparation of aluminium particles via exfoliation of aluminium foil

“…The %yield was calculated using the formula %yield = (actual yield (in grams) /source material (in grams)) x 100. indicating the number of bacteria that survived after the Al particle interaction, was enumerated my plate count method. The TVC was represented as cfu/mL (colony forming unit /mL) 15 .…”