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Engineered antifouling microtopographies – effect of feature size, geometry, and roughness on settlement of zoospores of the green alga Ulva
Abstract
The effect of feature size, geometry, and roughness on the settlement of zoospores of the ship fouling alga Ulva was evaluated using engineered microtopographies in polydimethylsiloxane elastomer. The topographies studied were designed at a feature spacing of 2 microm and all significantly reduced spore settlement compared to a smooth surface. An indirect correlation between spore settlement and a newly described engineered roughness index (ERI) was identified. ERI is a dimensionless ratio based on Wenzel's roughness factor, depressed surface fraction, and the degree of freedom of spore movement. Uniform surfaces of either 2 mum diameter circular pillars (ERI=5.0) or 2 microm wide ridges (ERI=6.1) reduced settlement by 36% and 31%, respectively. A novel multi-feature topography consisting of 2 mum diameter circular pillars and 10 microm equilateral triangles (ERI=8.7) reduced spore settlement by 58%. The largest reduction in spore settlement, 77%, was obtained with the Sharklet AF topography (ERI=9.5).
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Citations
Cites
Wettability of porous surfaces
Cassie, A. B. D., & Baxter, S. (1944) · Transactions of the Faraday Society · doi:10.1039/tf9444000546 · Cited by 13,807
RESISTANCE OF SOLID SURFACES TO WETTING BY WATER
Wenzel, R. N. (1936) · Industrial & Engineering Chemistry · doi:10.1021/ie50320a024 · Cited by 13,316
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Banerjee, I., Pangule, R. C., & Kane, R. S. (2011) · Advanced Materials · doi:10.1002/adma.201001215 · Cited by 2,749
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Callow, J. A., & Callow, M. E. (2011) · Nature Communications · doi:10.1038/ncomms1251 · Cited by 1,288
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Ivanova, E. P., Hasan, J., Webb, H. K., Truong, V. K., Watson, G. S., Watson, J. A., Baulin, V. A., Pogodin, S., Wang, J. Y., Tobin, M. J., et al. (2012) · Small · doi:10.1002/smll.201200528 · Cited by 1,019
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Bioinspired marine antifouling coatings: Status, prospects, and future
Jin, H., Tian, L., Bing, W., Zhao, J., & Ren, L. (2022) · Progress in Materials Science · doi:10.1016/j.pmatsci.2021.100889 · Cited by 585
Metadata
- Authors
- Schumacher, J. F., Carman, M. L., Estes, T. G., Feinberg, A. W., Wilson, L. H., Callow, M. E., Callow, J. A., Finlay, J. A., & Brennan, A. B.
- Venue
- Biofouling
- Publisher
- Informa UK Limited
- Published
- 2007-01
- Volume
- 23
- Issue
- 1
- Pages
- 55-62
- ISSN
- 0892-7014 (ISSN-L)
- 1029-2454
- OpenAlex
- W2068298719
- Cited by
- 453
- References
- 2
- FWCI
- 56.49
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Engineered antifouling microtopographies – effect of feature size, geometry, and roughness on settlement of zoospores of the green alga Ulva. https://app.cochat.ai/papers/10.1080/08927010601136957
- The paper
- Schumacher, J. F., Carman, M. L., Estes, T. G., Feinberg, A. W., Wilson, L. H., Callow, M. E., Callow, J. A., Finlay, J. A., & Brennan, A. B. (2007). Engineered antifouling microtopographies – effect of feature size, geometry, and roughness on settlement of zoospores of the green alga Ulva. Biofouling. https://doi.org/10.1080/08927010601136957
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