Details
| Original language | English |
|---|---|
| Pages (from-to) | 539-550 |
| Number of pages | 12 |
| Journal | BIOFOULING |
| Volume | 28 |
| Issue number | 6 |
| Publication status | Published - 11 Jun 2012 |
| Externally published | Yes |
Abstract
Superhydrophobic titanium surfaces fabricated by femtosecond laser ablation to mimic the structure of lotus leaves were assessed for their ability to retain coccoid bacteria. Staphylococcus aureus CIP 65.8T, S. aureus ATCC 25923, S. epidermidis ATCC 14990T and Planococcus maritimus KMM 3738 were retained by the surface, to varying degrees. However, each strain was found to preferentially attach to the crevices located between the microscale surface features. The upper regions of the microscale features remained essentially cell-free. It was hypothesised that air entrapped by the topographical features inhibited contact between the cells and the titanium substratum. Synchrotron SAXS revealed that even after immersion for 50 min, nano-sized air bubbles covered 45% of the titanium surface. After 1 h the number of cells of S. aureus CIP 65.8T attached to the lotus-like titanium increased to 1.27 × 105mm-2, coinciding with the replacement of trapped air by the incubation medium.
Keywords
- coccoid bacteria, femtosecond laser ablation, microtopography and nanotopography, superhydrophobic titanium surfaces
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Aquatic Science
- Immunology and Microbiology(all)
- Applied Microbiology and Biotechnology
- Environmental Science(all)
- Water Science and Technology
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In: BIOFOULING, Vol. 28, No. 6, 11.06.2012, p. 539-550.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Air-directed attachment of coccoid bacteria to the surface of superhydrophobic lotus-like titanium
AU - Truong, V. K.
AU - Webb, H. K.
AU - Fadeeva, E.
AU - Chichkov, B. N.
AU - Wu, A. H.F.
AU - Lamb, R.
AU - Wang, J. Y.
AU - Crawford, R. J.
AU - Ivanova, E. P.
N1 - Funding information: This study was supported in part by Australian Research Council (ARC) and the Advanced Manufacturing Co-operative Research Centre (AMCRC). HKW and VKT are recipients of Swinburne University Postgraduate Research Awards (SUPRA).
PY - 2012/6/11
Y1 - 2012/6/11
N2 - Superhydrophobic titanium surfaces fabricated by femtosecond laser ablation to mimic the structure of lotus leaves were assessed for their ability to retain coccoid bacteria. Staphylococcus aureus CIP 65.8T, S. aureus ATCC 25923, S. epidermidis ATCC 14990T and Planococcus maritimus KMM 3738 were retained by the surface, to varying degrees. However, each strain was found to preferentially attach to the crevices located between the microscale surface features. The upper regions of the microscale features remained essentially cell-free. It was hypothesised that air entrapped by the topographical features inhibited contact between the cells and the titanium substratum. Synchrotron SAXS revealed that even after immersion for 50 min, nano-sized air bubbles covered 45% of the titanium surface. After 1 h the number of cells of S. aureus CIP 65.8T attached to the lotus-like titanium increased to 1.27 × 105mm-2, coinciding with the replacement of trapped air by the incubation medium.
AB - Superhydrophobic titanium surfaces fabricated by femtosecond laser ablation to mimic the structure of lotus leaves were assessed for their ability to retain coccoid bacteria. Staphylococcus aureus CIP 65.8T, S. aureus ATCC 25923, S. epidermidis ATCC 14990T and Planococcus maritimus KMM 3738 were retained by the surface, to varying degrees. However, each strain was found to preferentially attach to the crevices located between the microscale surface features. The upper regions of the microscale features remained essentially cell-free. It was hypothesised that air entrapped by the topographical features inhibited contact between the cells and the titanium substratum. Synchrotron SAXS revealed that even after immersion for 50 min, nano-sized air bubbles covered 45% of the titanium surface. After 1 h the number of cells of S. aureus CIP 65.8T attached to the lotus-like titanium increased to 1.27 × 105mm-2, coinciding with the replacement of trapped air by the incubation medium.
KW - coccoid bacteria
KW - femtosecond laser ablation
KW - microtopography and nanotopography
KW - superhydrophobic titanium surfaces
UR - http://www.scopus.com/inward/record.url?scp=84863543100&partnerID=8YFLogxK
U2 - 10.1080/08927014.2012.694426
DO - 10.1080/08927014.2012.694426
M3 - Article
C2 - 22686938
AN - SCOPUS:84863543100
VL - 28
SP - 539
EP - 550
JO - BIOFOULING
JF - BIOFOULING
SN - 0892-7014
IS - 6
ER -