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Full-Text Articles in Nanotechnology Fabrication

Fabrication And Characterization Of Polycarbonate Polyurethane (Pcpu) Nanofibers Impregnated With Nanofillers, Hruday Chand Katakam Mar 2015

Fabrication And Characterization Of Polycarbonate Polyurethane (Pcpu) Nanofibers Impregnated With Nanofillers, Hruday Chand Katakam

USF Tampa Graduate Theses and Dissertations

Polycarbonate polyurethane (PCPU) has been studied as a novel polymer impregnated with nanoparticles for improved mechanical, thermal and adhesion properties [4]. This study investigates the synthesis of polycarbonate polyurethane (PCPU) polymeric nanofiber membranes by the process of electrospinning. This study further examines all the parameters associated with electrospinning a novel PCPU polymeric solution impregnated with nanofillers, such as nanoparticles, to produce fiber membranes. Tetrahydrofuran (THF) and N, N dimethylformamide (DMF) are used as solvents to dissolve PCPU polymer. One percent (1%) of nanofillers like silver and silica nanoparticles are added to PCPU polymer solution to investigate the impact on polymer …


Fabrication And Comparison Of Electrospun Cobalt Oxide-Antimony Doped Tin Oxide (Coo-Ato) Nanofibers Made With Ps: D-Limonene And Ps: Toluene, Manopriya Devisetty Subramanyam Nov 2014

Fabrication And Comparison Of Electrospun Cobalt Oxide-Antimony Doped Tin Oxide (Coo-Ato) Nanofibers Made With Ps: D-Limonene And Ps: Toluene, Manopriya Devisetty Subramanyam

USF Tampa Graduate Theses and Dissertations

This work investigates the fabrication, process optimization, and characterization of cobalt oxide-antimony doped tin oxide (CoO-ATO) nanofibersusing polystyrene (PS) solutions with toluene orD-limonene as solvents. These nanofibers are produced by anelectrospinning process. Nanofibers are fabricated using polymeric solutions of CoO doped ATO and mixtures of PS: D-limonene and PS:toluene. PSis a base aromatic organic polymer, a non-toxic material, and a versatile catalyst for fiber formation. PSsolutions are made by mixing polystyrene beads and D-limonene or toluene at specific weight percentages. These polymeric solutions of PS: D-limonene and PS:toluene are then mixed with CoO-ATO at various weight percentages. The two solutions …


Fabrication And Characterization Of Magnetic Nanostructures, Kevin Scott Oct 2014

Fabrication And Characterization Of Magnetic Nanostructures, Kevin Scott

USF Tampa Graduate Theses and Dissertations

Magnetic permalloy nanostructures were fabricated onto a silicon wafer using electron beam lithography and a liftoff process. The lithography was performed with a Hitachi SU-70 SEM retrofitted with a Nabity NPGS lithography conversion kit. PMMA of 950kDa molecular weight was used as the photoresist. Features were either nanowires, nanodots, or elliptical or rectangular nanostructures. The nanowires had dimensions of 15µm x 200nm x 40nm, the nanodots had diameters of 145nm and thickness of 12nm, and the ellipses and rectangles had dimensions of 110nm x 50nm x 13nm. Characterization of the nanostructures was performed using the same Hitachi SEM as well …