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Title

Micro- and nano-fluidics around HAB cells

AuthorsJenkinson, Ian R.; Berdalet, Elisa ; Wyatt, T. ; Zhuo, Li
KeywordsMicro-algae
Glycocalyx
Fluidics
Copepods
Issue Date2015
PublisherInternational Society for the Study of Harmful Algae
CitationMarine and Freshwater Harmful Algae. Proceedings of the 16 International Conference on Harmful Algae, Wellington, New Zealand 27th-31st October 2014: 171-174 (2015)
AbstractHave you ever wondered how algae stay so clean? Most flowering-plant leaves also stay clean. Under air, films of water and ―dirt‖ are repelled. Repulsion forces the water into droplets that easily roll off because these leaves are covered in hydrophobic nanometre (nm) to micrometre (µm) sized grooves and pillars, producing superhydrophobicity (SH) at the surface. Similarly, most algal cells bear a glycocalyx of organic fibrils that give surface structure, and are often hydrophobic. Glycocalyxes serve many functions, but whether they produce SH is poorly known. SH coatings are being developed to prevent fouling of ships and aquaculture structures without using toxins, so this technology could help understand how algae defeat fouling. Glycocalyxes are composed of exopolymeric secretions (EPS), and algae sometimes make the water more viscous using this tightly and more loosely bound EPS. EPS is also sometimes sticky. SH cuticles on copepods may change ambient fluid microdynamics by allowing slip at their surfaces, and facilitate filter feeding. By managing ambient viscosity and surface properties including slipping and sticking, algae may have the tools to engineer ambient fluidics and stay clean and unfouled
DescriptionJenkinson, Ian R. ... et. al.-- 16 International Conference on Harmful Algae (ICHA), Marine and Freshwater Harmful Algae, 27-31 October 2014, Wellington, New Zealand.-- This is publication No. 1 of the RheFFO Group.-- 4 pages, 7 figures
Publisher version (URL)http://www.issha.org/Welcome-to-ISSHA/Conferences/ICHA-conference-proceedings/ICHA16-Proceedings
URIhttp://hdl.handle.net/10261/124040
Identifiersisbn: 978-87-990827-5-9
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