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Long-term in situ observation of barnacle growth on soft substrates with different elasticity and wettability

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Title: Long-term in situ observation of barnacle growth on soft substrates with different elasticity and wettability
Authors: Ahmed, Nafees Browse this author
Murosaki, Takayuki Browse this author
Kakugo, Akira Browse this author
Kurokawa, Takayuki Browse this author
Gong, Jian Ping Browse this author
Nogata, Yasuyuki Browse this author
Keywords: Barnacle, hydrogel
elastic modulus
wettability
antifouling
growth kinetics
self-release
Issue Date: 21-Aug-2011
Publisher: Royal Society of Chemistry
Journal Title: Soft Matter
Volume: 7
Issue: 16
Start Page: 7281
End Page: 7290
Publisher DOI: 10.1039/c1sm05483j
Abstract: In this paper, settlement, metamorphosis, and long term growth of barnacles on soft substrates with a wide elasticity range (modulus 0.01-0.47 MPa) as well as with the variation of wettability were investigated for the first time in vitro, in the laboratory environment. Tough double-network (DN) hydrogels and polydimethylsiloxane (PDMS) were used as the soft hydrophilic substrates and hydrophobic substrates, respectively, and polystyrene (PS), a hard and hydrophobic substrate, was used as a control. It was observed that 1) the initial settlement and metamorphosis of cyprid larvae dramatically increase with the substrate elastic modulus while does not show an explicit dependence on the substrate wettability; 2) the growth rate of barnacles on both DN gels and PDMSs does not show an explicit dependence on the elasticity of the soft substrates, while it shows a slightly higher value on the hydrophobic PDMSs than on the hydrophilic DN gels; 3) the growth rate on these soft substrates is explicitly lower than that on the rigid PS substrate at the late stage of the growth; 4) the "self-release" phenomenon of barnacles was observed for the PDMS substrate with modulus higher than 0.01 MPa. Based on these observations, the antifouling effects of the soft substrates on barnacles were discussed.
Rights: Soft Matter, 2011, 7, 7281-7290 - Reproduced by permission of The Royal Society of Chemistry (RSC)
Type: article (author version)
URI: http://hdl.handle.net/2115/49233
Appears in Collections:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 龔 剣萍 (Gong Jian Ping)

 

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