Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 65 for “"antifouling"”.
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Deformation-assisted antifouling of surfaces
… The current state of the art chemical-free antifouling technique employed includes passive methods such as surface treatment or modification, the application of new surface materials, surface vibration, large deformation or heating (for deicing only) The problem of fouling is especially …
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A study of triorganotin biocides in antifouling coatings.
… of triorganotin biocides when dispersed in an antifouling paint and a polyurethane system. In the antifouling paint, based on the Hypalon polymer, tri-n-butyltin chloride, tri-n-butyltin acetate and to-(triphenyltin) oxide are essentially unmodified. Bis-(tri-n-butyltin) oxide, in contrast, was …
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The fate of organotin biocides in marine antifouling elastomers.
… biocides when dispersed in neoprene-based marine antifouling elastomers. Chemical speciation using tin-119 nuclear magnetic resonance spectroscopy and gas chromatography, indicate that the majority of the tri-n-butyltin (TBT) biocides are converted to TBT-chloride, TBT-stearate and di-n-butyltin …
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Antifouling and Antithrombogenic Ultrathin Surface Chemistry for Bioanalytical and Biomedical Applications
… in passivating substrate materials with an antifouling (respectively a biocompatible) organic coating. Yet, despite tremendous research activity and progress in recent times, efficient adlayers are scarce, and endowing artificial surfaces with such properties remains, in essence, a difficult …
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Settlement of marine fouling organisms in response to novel antifouling coatings
… combating marine biofouling are toxin containing antifouling coatings which often have detrimental non-target environmental effects. These effects and proposed bans on harmful substances in antifouling coatings, mandates development of more environmentally friendly antifouling technologies. Of …
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Polyelectrolyte multilayer thin films with antimicrobial, antifouling and drug releasing properties
… impart a surface with long term antimicrobial / antifouling functionality via a permanent microbicidal base, and controlled delivery of a therapeutic agent via a hydrolytically degradable top film as needed. Efforts were focused on maximizing and understanding the factors that influence the …
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Laser Surface Texturing To Create Biomimetic Surface Topographies For Marine Antifouling Efficacy Testing
… evolution has led to the development of antifouling textures on many marine species. This thesis provides novel investigation into creating biomimetic antifouling surface directly onto marine grade stainless steel using laser micro machining. The investigation was split into three main …
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The development of a marine antifouling system using environmentally acceptable and naturally occurring products
… alternative environmentally acceptable ship hull antifouling systems are required. This thesis uses a multidisciplinary approach to combine two disparate areas of research namely marine biology and surface engineering, to develop a novel natural product (NP) based antifouling system. The overall …
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Enhancement of antifouling properties using rice husk silica particles in polysulfone membrane and optimization of its operating condition
… additive in the polysulfone membrane to enhance antifouling properties in membrane separation process. The flat sheet PSf/RHS membrane was prepared via phase inversion technique. The characterization and performance test were conducted on PSf ultrafiltration membrane prepared from a different …
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Part 1. Biologically Active Compounds From Agelas Sponges. Part 2. Barnacle Settlement Inhibitors From Octocorallia (Antifouling, Antibacterial, Renillafoulins, Antiviral, Caribbean)
Biologically active extracts of the Caribbean sponges Agelas coniferin and Agelas cf. mauritiana have been found to contain seven new bromopyrroles (1a, 3a-8a), as well as the known debromooroidin-dimer sceptrin (2a). These compounds, isolated as the diacetate salts, were found to be antibacterial …
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Surface Plasmon Resonance Imaging Biosensors for Cancer Diagnosis: Detection of Circulating Tumor DNA
… of PLL-coated surfaces, and thus the antifouling property. The PLL backbone has been functionalized with different percentages (y%) of maleimide-OEG-NHS ester chains (PLL-mal(y%), from 13% to 26%), and the anionic oligopeptide CEEEEE, composed of one cysteine (C) and five glutamic …
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The effect of flower-like tatania towards characteristics and performance of polysulfone mixed matrix membrane
… were evaluated in terms of HA rejection, PWF, antifouling, antibacterial activity and photocatalytic properties based on self-cleaning antifouling efficiency. From the result, the addition of FLT was strongly influenced overall structure and characteristics of the membrane compared to ST. With …
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The development of time-dependent biofouling model for ships
… ship results (Schultz et al.,2011).;In addition, antifouling precautions cost 5% of the total fuel-oil cost of world fleet for a year, and to the best of the author's knowledge, there is no scientifically settled approach for selecting the best antifouling coating for the ship in question. This …
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Development of Forward Osmosis Based Separations: A Novel Approach in Membrane Technology
… demonstrated several approaches to enhance the antifouling and FO performance by improving the constituent material as well as developed a novel thermo-responsive process with economic regeneration of the draw solution. The surface charge and fouling adsorption mechanism have been tuned by …
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A Multifunctional Patch for Minimally Invasive Tissue Sealing: Design Strategies and Applications
… the microtextured bioadhesive layer, and (3) an antifouling zwitterionic polymer-interpenetrated elastomer backing. Strategies guiding the design and characterization of each layer are discussed, and tailored form factors for specific minimally invasive clinical applications are further …
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