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 54 for “"composite films"”.
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NANOSTRUCTURED COMPOSITE FILMS FOR BRAIN-MACHINE INTERFACE APPLICATIONS
… brain activity. Nanostructured Cluster Assembled Films (NCAFs) are of particular interest for the development of artificial systems showing neuromorphic behaviors and as the basis for BMIs. Au NCAFs show nonlinear electrical properties and resistive switching behavior [5], [6]. ZrOx NCAFs are …
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Multiscale Mechanics of Graphene Oxide and Graphene Based Composite Films
… also to mechanical study of graphene based composites. GO is a layered nanomaterial comprised of hierarchical units whose characteristic dimension lies between monolayer GO (0.7 nm â 1.2 nm) and bulk GO papers (1 um). Mechanical behaviors of monolayer GO and GO nanosheets (10 nm- 100 nm) …
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Composite Films for Modifying Evanescent Wave Characteristics in Long-Period Grating Biosensors
… index of ordinary aqueous solutions (~1.33). A composite film was designed to raise the local refractive index of the sensor, thus increasing sensitivity. Titanium dioxide deposition raised the refractive index of the sensor to ~1.42. Bovine serum albumin was immobilized onto a dextran hydrogel …
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Investigation of the application of polylactic acid-calcium phosphate composite materials as novel periodontal barrier membranes
… of polylactic acid-calcium phosphate (PLA-Ca P) composite materials to be developed into a GTR membrane with increased potential for producing periodontal regeneration. Ca P materials included nano-hydroxyapatite (n-HA) and ß tri-calcium phosphate (ß-TCP). PLA-Ca P composite films were produced …
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Chitosan/Ellagic Acid Composite Materials for Local Cancer Therapy
… a therapeutic agent. The chitosan/ellagic acid composite films were developed by combining 1% (w/v) chitosan solution with different concentrations (0.05, 0.1, 0.5, 1, or 20% (w/v)) of ellagic acid for a local chemotherapy. Characterization of composite films was performed on chemical structure, …
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Antibacterial activities of silver-nanoparticles-titania composite thin films fabricated by the molecular precursor method (MPM)
… the major limitation of this Ag-NPs/TiO2 composite material is its poor miscibility, which subsequently reduces the antibacterial activities of the material. To overcome this limitation, the Molecular Precursor Method (MPM) was adopted in this study as a synthetic method for the …
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Flexible Electronics: Materials and Device Fabrication
… processable semiconductor materials and their composite films were also studied in this research. Electrically conductive, ductile, thermally and mechanically stable composite films of polyaniline and sulfonated poly (arylene ether sulfone) were introduced. A simple chemical route was followed …
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Manipulation of Carbon Nanostructures for Multifunctional Composite Materials
Composite fibers comprised of 5:95 wt ratio of ultra-short single walled carbon nanotubes (US-SWCNT):polyacrylonitrile (PAN) were spun using a dry-jet wet-spinning method followed by oxidative stabilization at 285 °C. The as-spun and stabilized composite fibers exhibited a 50 and 40 % increase, …
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Electrochemical synthesis and characterisation of polypyrrole/chitosan films doped with molecular anions
… on the synthesis of polypyrrole-chitosan composite films. These films were investigated for the incorporation and release of methyl orange (a model anionic dopant), dexamethasone (an anti-inflammatory drug) and oxacillin (an antibiotic). All drug-doped films were grown at a constant …
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Development of a biodegradable biopolymer from renewable natural resources suitable for additive manufacturing and bone tissue engineering
… and 1% poly(vinyl acetate) was selected (PVAc composite 2% CS, PVAc composite 3% CS and PVAc composite 4% CS). Surface morphology showed that PVAc composite 2% CS was non-porous, while the 3% and 4% chitosan counterparts were porous. All three PVAc composite films were biodegradable and showed …
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Metal/polymer interactions
… Toward this goal, multilayered polyimide composite films have been produced through the homogeneous incorporation of copper salts and complexes into poly(amide acid) followed by thermal processing. In this way, highly anisotropic copper containing composite films have been obtained which …
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Biosynthesis of polyhydroxyalkanoates and its medical applications
… The polymer was fabricated into neat P(3HO) films to be used a biomaterial for pericardial patch application. Bioactive nanobioglass particles (n-BG) of the type 45S5 Bioglass® were incorporated as a filler in the polymer matrix to form P(3HO)/n-BG composite films. The P(3HO)/n-BG composite …
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Custom engineered nanomaterials for energetics and energy applications
… method for modifying or creating nanostructured composite materials. Additionally, nano-composite films used for on-chip energetics are prepared using electrochemical etching via solutions containing hydrofluoric acid, ethanol and hydrogen peroxide. Lastly, a less sensitive bimetal nano-powder …
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Biosynthesis of polyhydroxyalkanoates, their novel blends and composites for biomedical applications
… novel 2D P(3HO)/bacterial cellulose composite films were developed for their potential use in tissue engineering applications. Chemically modified bacterial cellulose microcrystals were used as the reinforcing agent to improve the properties of P(3HO). Mechanical properties such as …
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Engineering the electrochromism and ion conduction of layer-by-layer assembled films
… composition and morphology of the resultant films. For the first time, this control was used to: 1) intelligently design electrochromic LBL assembled composite films that facilitated ion motion for faster switching and exhibited enhanced or shifted coloration, 2) combine multiple …
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Fabrication of novel sensors from nanomaterials
… they are incorporated into bulk materials or composites due to aggregation or poor interactions with their host matrix. This obstacle will also be addressed in the thesis, as we fabricate and characterise composites incorporating nanomaterials, and develop methods to process these materials …
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Processing and Characterization of Multifunctional Thermoplastic Nanocomposite Films
Nanoparticles reinforced polymer composite films have been widely studied for their enhanced mechanical, electrical and thermal properties compared with host polymer matrix. However, most research was conducted on incorporation of nanoparticles in polymer films to improve single property and there …
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Photo-Thermal Application of a Polydimethylsiloxane Foam Embedded with Carbon Nanoparticles for Interfacial Solar Water Evaporation
… and needs to be addressed urgently. The composites of polydimethylsiloxane (PDMS) and carbon-based materials have attracted intensive research interests over the past several decades owing to its stretchable, non-toxic features which can be applied in various fields such as flexible …
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