Engineered antifouling microtopographies – correlating wettability with cell attachment
- 1 January 2006
- journal article
- research article
- Published by Taylor & Francis Ltd in Biofouling
- Vol. 22 (1), 11-21
- https://doi.org/10.1080/08927010500484854
Abstract
Bioadhesion and surface wettability are influenced by microscale topography. In the present study, engineered pillars, ridges and biomimetic topography inspired by the skin of fast moving sharks (Sharklet AF™) were replicated in polydimethylsiloxane elastomer. Sessile drop contact angle changes on the surfaces correlated well (R2 = 0.89) with Wenzel and Cassie and Baxter's relationships for wettability. Two separate biological responses, i.e. settlement of Ulva linza zoospores and alignment of porcine cardiovascular endothelial cells, were inversely proportional to the width (between 5 and 20 μm) of the engineered channels. Zoospore settlement was reduced by ∼85% on the finer (ca 2 μm) and more complex Sharklet AF™ topographies. The response of both cell types suggests their responses are governed by the same underlying thermodynamic principles as wettability.Keywords
This publication has 47 references indexed in Scilit:
- The influence of surface energy on the wetting behaviour of the spore adhesive of the marine alga Ulva linza (synonym Enteromorpha linza )Journal of The Royal Society Interface, 2005
- The Influence of Natural Surface Microtopographies on FoulingBiofouling, 2004
- Wetting of textured surfacesColloids and Surfaces A: Physicochemical and Engineering Aspects, 2002
- Microtopographic Cues for Settlement of Zoospores of the Green Fouling Alga EnteromorphaBiofouling, 2002
- Rough wettingEurophysics Letters, 2001
- Pearl dropsEurophysics Letters, 1999
- PRIMARY ADHESION OF ENTEROMORPHA (CHLOROPHYTA, ULVALES) PROPAGULES: QUANTITATIVE SETTLEMENT STUDIES AND VIDEO MICROSCOPY1Journal of Phycology, 1997
- Fouling Algae from 'In-service' ShipsBotanica Marina, 1986
- Surface properties determine bioadhesive outcomes: Methods and resultsJournal of Biomedical Materials Research, 1984
- On adhesion of biological substances to low energy solid surfacesJournal of Colloid and Interface Science, 1982