Prolonged morphometric study of barnacles grown on soft substrata of hydrogels and elastomers

Ahmed, Nafees; Murosaki, Takayuki; Kurokawa, Takayuki; Kakugo, Akira; Yashima, Shintaro; Nogata, Yasuyuki; Gong, Jian Ping

doi:10.1080/08927014.2013.863280

Cited by 12 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On stiff substrates that barnacles can easily attach to, such as natural objects, metals, and some polymers, barnacle cement forms a flat, thin, and transparent layer which can duplicate the texture of external substrates and allow for a high adhesion strength (Dougherty, 1990;Raman et al, 2013). Conversely, on soft and elastic substrates like hydrogels and silicones, barnacles deposit thick, opaque, and rubber-like cement which exhibits much lower adhesion strength (Berglin and Gratenholm, 2003;Wiegemann and Watermann, 2003;Holm et al, 2005;Ahmed et al, 2014). This form of barnacle cement occurs probably owing to its high water uptake, as seawater may penetrate into the loosely sealed adhesive joint.…”

Section: Fibrillar Morphology Of Barnacle Cementmentioning

confidence: 99%

Biochemistry of Barnacle Adhesion: An Updated Review

Liang

Strickland

et al. 2019

Front. Mar. Sci.

View full text Add to dashboard Cite

Barnacles are notorious marine fouling organisms, whose life cycle initiates with the planktonic larva, followed by the free-swimming cyprid that voluntarily explores, and searches for an appropriate site to settle and metamorphoses into a sessile adult. Within this life cycle, both the cyprid and the adult barnacle deposit multi-protein adhesives for temporary or permanent underwater adhesion. Here, we present a comprehensive review of the biochemistries behind these different adhesion events in the life cycle of a barnacle. First, we introduce the multiple adhesion events and their corresponding adhesives from two complementary aspects: the in vivo synthesis, storage, and secretion as well as the in vitro morphology and biochemistry. The amino acid compositions, sequences, and structures of adult barnacle adhesive proteins are specifically highlighted. Second, we discuss the molecular mechanisms of adult barnacle underwater attachment in detail by analyzing the possible adhesive and cohesive roles of different adhesive proteins, and based on these analyses, we propose an update to the original barnacle underwater adhesion molecular model. We believe that this review can greatly promote the general understanding of the molecular mechanisms underlying the reversible and irreversible underwater adhesion of barnacles and their larvae. Such an understanding is the basis for the prevention of barnacle fouling on target surfaces as well as designing conceptually new barnacle-inspired artificial underwater adhesives.

show abstract

Section: Fibrillar Morphology Of Barnacle Cementmentioning

confidence: 99%

Biochemistry of Barnacle Adhesion: An Updated Review

Liang

Strickland

et al. 2019

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

“…It could be possible that barnacles are not able to completely embed the longer microstructures, so that the still uncured glue was in permanent contact with water. Under this circumstance, the resulting adhesive strength might be weakened, due to the water uptake by the glue [1,39]. Furthermore, the barnacle could not effectively seal the outer edge of the basal plate from the marine environment.…”

Section: Attachment Strength In Dependence Of Height and Diametermentioning

confidence: 99%

A systematic investigation into the effect of fibrillar microstructures on the settlement and attachment strength of the bay barnacle Balanus improvisus under natural conditions

et al. 2020

View full text Add to dashboard Cite

Barnacles are one of the most prominent hardfouling organisms in the marine environment. They are able to adhere efficiently to nearly every surface underwater including artificial ones like ship hulls and maritime installations. This overgrowing can lead to huge economical costs. Previous studies have shown that specific microstructure types including micropillars can reduce the initial settlement of barnacles. However, it is not clear how adult barnacles are influenced by microstructured surfaces and whether microstructures can even decrease the resulting adhesion strength of them under natural conditions. Therefore, the aim of this study was to systematically investigate the influence of height, diameter, aspect ratio and flexibility of fibrillar microstructures made from polydimethylsiloxane (PDMS) on initial settlement of barnacles as well as the permanent attachment of adult ones. Micropillars with three different heights (50 µm, 100 µm, 200 µm) and two different diameters (25 µm, 50 µm) were exposed to the Baltic Sea for 12 weeks. On a weekly basis, all barnacles (Balanus [= Amphibalanus] improvisus) were tracked individually to calculate the release-to-settlement ratio and to capture the average attachment duration prior to detachment. The results have shown that with increasing height, both initial settlement and fouling density development were reduced. An increase of diameter showed a similar relationship but at a much smaller scale. All tested microstructures decreased the detachment rates of barnacles from the surface compared to a flat PDMS control. However, they appear to complicate the development of a strong adhesive joint in the young adult phase. Some grade of flexibility in the microstructures appeared to increase the fouling retention. The results shed light in the interaction between adult barnacle adhesion and microstructures and may help in the development of new antifouling technologies.

show abstract

“…Several categories of hydrophilic surfaces are being explored for the design of successful AF coatings in marine environments. Hydrogels, polymeric materials that absorb a large amount of water, have been synthesized for antifouling purpose [14]. Due to their poor stability though, recent research is focused on charged networks, which offer a promising alternative for AF coatings.…”

Section: Introductionmentioning

confidence: 99%

Polymeric Coatings Based on Water-Soluble Trimethylammonium Copolymers for Antifouling Applications

et al. 2020

View full text Add to dashboard Cite

Crosslinked polymeric materials based on a quaternary trimethylammonium compound were developed and evaluated as potential antifouling coatings. For this purpose, two water-soluble random copolymers, poly(4-vinylbenzyltrimethylammonium chloride-co-acrylic acid) P(VBCTMAM-co-AAx) and poly(N,N-dimethylacrylamide-co-glycidylmethacrylate) P(DMAm-co-GMAx), were synthesized via free radical polymerization. A water based approach for the synthesis of P(VBCTMAM-co-AAx) copolymer was used. Coatings of the complementary reactive copolymers in different compositions were obtained by curing at 120 °C for one day and were used to coat aquaculture nets. These nets were evaluated in respect to their release rate using Total Organic Carbon (TOC) and Total Nitrogen (TN) measurements. Finally, the antifouling efficacy of these newly-composed durable coatings was investigated for 14 days in accelerated conditions. The results showed that this novel polymeric material provides contact-killing antifouling activity for a short time period, whereas it functions efficiently in biofouling removal after high-pressure cleaning.

show abstract

Prolonged morphometric study of barnacles grown on soft substrata of hydrogels and elastomers

Cited by 12 publications

References 27 publications

Biochemistry of Barnacle Adhesion: An Updated Review

Biochemistry of Barnacle Adhesion: An Updated Review

A systematic investigation into the effect of fibrillar microstructures on the settlement and attachment strength of the bay barnacle Balanus improvisus under natural conditions

Polymeric Coatings Based on Water-Soluble Trimethylammonium Copolymers for Antifouling Applications

Contact Info

Product

Resources

About