Microfabricated Biomimetic placoid Scale-Inspired surfaces for antifouling applications

Munther, Michael; Palma, Tyler; Angeron, Isaac A.; Salari, Sepehr; Ghassemi, Hessam; Vasefi, Maryam; Beheshti, Ali; Davami, Keivan

doi:10.1016/j.apsusc.2018.05.030

Cited by 47 publications

(18 citation statements)

References 30 publications

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“…Incorporating La 2 O 3 into the dental restoratives increases the hardness of nanocomposites (Figure 1) and improves the resistance of the surface against wear and pin penetration due to: Increasing LNFs fill up empty spaces between the QMFs. The filled spaces slow down microcracks initiation produced by wear and decrease resin phase between fillers. Increasing mechanical properties of nanocomposite such as fatigue, toughness and strengths which may influence the wear properties, and can be further investigated by using nanoindentation and extracting mechanical properties of the surface in the nanoscale (Munther et al., 2018; Palma et al., 2019). Converting two‐body to three‐body wear mechanisms by LNFs having a better attachment to the substrate and building coherent particles in comparison with microparticles. Increasing polymerization degree of resin base materials by introducing LNFs into the dental restoratives. …”

Section: Discussionmentioning

confidence: 99%

“…tigue, toughness and strengths which may influence the wear properties, and can be further investigated by using nanoindentation and extracting mechanical properties of the surface in the nanoscale (Munther et al, 2018;Palma et al, 2019 (Tamura et al, 2013). Faria et al investigated the relation-ship between the surface hardness and wear resistance of composites and reported that material wear decreases as its hardness increases (Faria et al, 2007).…”

Section: Increasing Mechanical Properties Of Nanocomposite Such As Fa-mentioning

confidence: 99%

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Effect of nanoparticles on surface characteristics of dental nanocomposite

et al. 2020

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Light-curable dental composites are, nowadays, the most frequently used restoratives as a replacement of lost hard dental tissues (Asmussen & Peutzfeldt, 1998). This is due to noticeable advantages of polymeric composites over amalgams, such as biocompatibility, handling, inexpensive and teeth colour, that are making them more appealing and widely used dental materials. A dental resin-composite is made of an organic matrix and filler system, in which the resin part consists of multifunctional methacrylate, a dimethacrylate diluent and a photo-initiating system, and dispersed fillers that can be modified to get improved and designed mechanical properties and wear resistance (Amirouche-Korichi, Mouzali, & Watts, 2009; Fugolin & Pfeifer, 2017). Based on dental composition, shrinkage of the restorative, residual stress and gap formation mainly relate to the organic matrix; however, mechanical and tribological properties are considerably depend on filler composition, content and shape (Feng, Suh, & Shortall, 2010; Lawson & Burgess, 2015). Lohbauer et al. investigated the strength and fatigue performance of three types of dental restoratives as flowable, aesthetic hybrid and nanofilled hybrid composites validating highly dependence of elastic modulus and fatigue life on filler content, specifically for flowable resins as compared with others (Lohbauer, Frankenberger, Krämer, & Petschelt, 2006). Filler shape influence on elastic modulus, fracture toughness and bending strength was investigated by Kim et al. showing all properties increased with elastic modulus having a higher rate based on the content of the spherical filler (Kim, Park, Imai, & Kishi, 1994). Similar results showed that increasing fillers improve mechanical properties like wear resistance, fatigue resistance and flexural strength that are essential for the long durability of restorative materials (Htang, Ohsawa, & Matsumoto, 1995). Increasing the wear resistance of restorative resins is an important parameter, which increases their lifespan. Occlusal interactions are the main cause of wear, and material loss in dental restoratives, which if not controlled, could impair masticatory function, and impose possible decline of systemic health (Miura et al., 2000; Watts,

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Section: Discussionmentioning

confidence: 99%

Section: Increasing Mechanical Properties Of Nanocomposite Such As Fa-mentioning

confidence: 99%

Effect of nanoparticles on surface characteristics of dental nanocomposite

et al. 2020

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“…The formulas for the product of the immersed surface of the vessel and the emission coefficient were applied, with the highest emission coefficient for the annual period estimated at 1.2 µg/cm 2 per year. The total annual quantity (excluding fishing vessels) was estimated at 10 tons [41]. The accuracy of determining the wetted area is extremely important for the proper assessment of the biofouling effect on a vessel.…”

Section: Discussionmentioning

confidence: 99%

“…Estimates vary depending on the type of vessel and operating conditions, with considerations that 1 mm of biofouling layer thickness leads to a 17% increase in fuel consumption and a 15% decrease in vessel speed [10]. Other estimates state that for vessels with lower operating speeds (bulk carriers and tankers), the resistance to movement through the water increases by 70-90%, while in faster vessels (passenger, cruise liners and warships), the increase in resistance is about 40-50% [15,30,[41][42][43]. Given the surface roughness, some researchers note the possibility that the initial stages of microfouling can, to some extent reduce the resistance to movement through water if the affected surface is originally exposed roughness [44].…”

Section: Copper Emissions In Commercial Vesselsmentioning

confidence: 99%

Advanced Numerical Method for Determining the Wetted Area of Container Ships for Increased Estimation Accuracy of Copper Biocide Emissions

Ivče

Bakota

Kos

et al. 2020

JMSE

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Research into the consequences of the accumulation of copper biocides in the marine environment has intensified since the ban on the use of organotin tributyltin (TBT) and the introduction of copper-based compounds in antifouling (AF) coatings. The specific emission of copper biocides and the surface of the wetted area of a vessel are the key parameters for the estimation of biocide emission. The estimated values of specific emissions of copper biocides should be taken with caution and their limitations and suitability for various surfaces and types of vessel should be known. Baseline limitations are also present in determining vessels’ wetted area. The available models do not provide realistic values, allowing multiple deviations. The proposed method of determining the wetted area considering container vessels and the specifics of their forms results in a set of hydrostatic diagrams that enable much more accurate estimation. The use of Automatic Identification System (AIS) is also proposed in terms of independent collection of required calculation parameters, enabling a full assessment of the total emission of copper biocides from container ships in the observed area.

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“…Surfaces from marine organisms capable of reducing or preventing biofilm formation are of interest in engineering and materials sciences [ 80 , 81 , 82 ]. Biomimetic surface modification has been considered in antifouling material development and a number of studies have examined antifouling potential of topographic patterns, textures and roughness scales found on organisms [ 4 , 81 , 83 ].…”

Section: Surface Modificationmentioning

confidence: 99%

Bio-inspired Surface Texture Modification as a Viable Feature of Future Aquatic Antifouling Strategies: A Review

Richards

Slaimi

O’Connor

et al. 2020

IJMS

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The imitation of natural systems to produce effective antifouling materials is often referred to as “biomimetics”. The world of biomimetics is a multidisciplinary one, needing careful understanding of “biological structures”, processes and principles of various organisms found in nature and based on this, designing nanodevices and nanomaterials that are of commercial interest to industry. Looking to the marine environment for bioinspired surfaces offers researchers a wealth of topographies to explore. Particular attention has been given to the evaluation of textures based on marine organisms tested in either the laboratory or the field. The findings of the review relate to the numbers of studies on textured surfaces demonstrating antifouling potential which are significant. However, many of these are only tested in the laboratory, where it is acknowledged a very different response to fouling is observed.

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Microfabricated Biomimetic placoid Scale-Inspired surfaces for antifouling applications

Cited by 47 publications

References 30 publications

Effect of nanoparticles on surface characteristics of dental nanocomposite

Effect of nanoparticles on surface characteristics of dental nanocomposite

Advanced Numerical Method for Determining the Wetted Area of Container Ships for Increased Estimation Accuracy of Copper Biocide Emissions

Bio-inspired Surface Texture Modification as a Viable Feature of Future Aquatic Antifouling Strategies: A Review

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