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 29 for “"polydopamine"”.
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Engineered Polydopamine Nanocarriers for Biomedical Applications
… explored, organic nanostructures such as polydopamine (PDA) nanoparticles have emerged as promising candidates to tackle these challenges, owing to their excellent biocompatibility, ease of manufacturing, and versatile functionalisation. This thesis explores the potential of PDA …
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RAPID FABRICATION OF CUSTOMIZABLE MXENE/POLYDOPAMINE (MXPDA) ELECTRODES
… nanomaterial TI3C2Tx, in conjunction with polydopamine (PDA) to develop customizable microelectrode arrays (MEAs) that can be rapidly fabricated for use in surgical settings. MXenes are selected for their exceptional conductivity, flexibility, and biocompatibility-qualities essential for …
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Eumelanin and polydopamine : self-assembly, structure, and properties
… practical applications of synthetic eumelanin, polydopamine (PDA), a model that mimics the polymerization mechanism of eumelanin via controlled in silico covalent cross-linking is presented. The results show the possibility of tuning the molecular structures and mechanical properties of …
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Synthesis and Characterization of Graphene-Polymer Nanocomposites via Reversible Addition-Fragmentation Chain-Transfer Polymerization
… of growing polymers from graphene surfaces, polydopamine was coated on graphene oxide as a platform for subsequent “grafting from” RAFT polymerization. This was possible as polydopamine has available hydroxyl groups that can react with carboxylic groups of the RAFT agent via ester linkages. …
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Design and Application of Nanostructured Flavin Photocatalysts
… flavin photocatalysts through the combination of polydopamine (PDA). It is shown that PDA not only acts as a carrier of the flavin, but actively engages in the catalytic mechanism and improves flavin photostability. In the first instance, copolymer flavin-polydopamine (FLPDA) nanoparticles were …
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Synthesis, Modification, and Application of Colloidal Aluminum Nanoparticles
… in a thin coating of the bio-inspired polymer, polydopamine, for dramatic increases in aqueous stability. We examine the oxidation process of both bare and functionalized particles and characterize a high surface area oxide material obtained after oxidation. We then explore the multifunctional …
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TAILORING SURFACES FOR POTENTIAL INHIBITION OF BACTERIAL TRANSMISSION IN HEALTHCARE SETTINGS
… investigated. Finally, copper-incorporated polydopamine was investigated as a simple-to-fabricate antibacterial coating although it did not offer a high level of transparency.
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Development of Proton Exchange Membrane for Fuel Cell and Electrolyzer
… polyhedral (OSP) nanoparticles with polydopamine for enhancing the properties of OSP/Nafion composite membrane. The composite membranes were designed to overcome limitations of dimensional instability, fuel crossover, and poor performance under variable conditions like temperature and …
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3D printed-poly(lactic acid) scaffolds with improved bioactivity for bone tissue engineering
… engineering. A simple mussel inspired method, polydopamine (PDA) surface functionalization, has being proposed as an efficient way to enhance the bioactivity of biomaterials, such as PLA, and to promote covalent immobilization of a variety of proteins such as collagen (COL) type I. This study …
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Analytical and Experimental Investigation of Interphase and Dispersion Effects on the Mechanical Stiffness of Cellulose Nanocomposites
… (SPI) and cellulose nanocrystals (CNC) or polydopamine coated cellulose nanocrystals (PD-CNC) were prepared via solution casting method and tested for mechanical stiffness. These outcomes were compared to standard composite models as well as novel methods adapted from the literature that …
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Durability and Damage Analysis of Hybrid Multiscale Composites
… and functionalizing the fiber surface with polydopamine. Mechanical analysis showed a significant improvement in strength and stiffness in samples with patterning, when compared to samples with uniform nanofiller growth. Damping results show that polydopamine improved the adhesion between …
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Novel Photothermal Materials and Thermally Engineered Membranes for Solar Desalination
… high-performance photothermal materials (polydopamine (PDA), MXene and polypyrrole (PPy)) for efficient PMD. Their excellent photothermal property, abundant functional groups and facile processability make them highly appealing in achieving high-performance PMD membranes. Taken together, …
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Drug Delivery to Solid Tumors via Polymeric Nanoparticles
… dopamine polymerization, which formed a layer of polydopamine (pD) on NP surface allowing for conjugation of LMWC to the preformed NP cores. When compared to PLGA-LMWC NPs, PLGA-pD-LMWC NPs had superior control over drug release. Additionally, obtained PLGA-pD-LMWC NPs had similar cellular …
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Localizing Strain in a 2D in vitro Stretch System to Model Regional Injury Dynamics
… cell (hiPSC)-derived astrocytes were cultured on polydopamine and Matrigel® coated PDMS membranes and subjected to the high-friction indentation. Calcein AM staining before and after injury revealed decreased cell viability in the periphery, and maintained viability in the center, consistent with …
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Development of tandem catalytic systems utilizing mesoporous silica nanoparticles
… The tandem catalyst was then coated with a polydopamine polymer coating to prevent leaching of the metal nanoparticles while simultaneously increasing recyclability of the catalyst. A co-condensation method was used to functionalize MSN with evenly distributed functional groups while …
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Friction and Wear of Polytetrafluoroethylene/Graphene Oxide Composite Thin Films
… issues, the addition of an adhesive layer of polydopamine (PDA) between stainless steel substrates and thin PTFE films was also investigated.</p> <p>An automatic friction abrasion analyzer was used to perform friction and wear testing with a ball-on-flat configuration. Wear tracks of the thin …
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Standardized development of microarray technology via substrate-independent surface coatings
… multilayer and a self-polymerized polydopamine film. The results of this investigation determined that both multifunctional substrate-independent surface coatings were capable of depositing onto a broad range of materials and converting their surface properties into the properties …
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A Bifunctional Nanocomposites Based Electrochemical Biosensor for In-field Detection of Pathogenic Bacteria in Food
… O157:H7. This biosensor integrated magnetic GOx-polydopamine (PDA) based polymeric nanocomposites (PMNCs) which served dual functions as both the carrier and the label, and Prussian blue (PB) modified SP-IDMEs for measurement. The core-shell Abs/GOxext/gold nanoparticles (AuNPs)/magnetic beads …
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