Translational And RotationalTarget Effect On ElectrospunNanofibersJosé A. Cruz-ArzónEdwin J. AlvaradoDr. Wilfredo OtañoMr. Brian VélezMs. Claudia Colón
Introduction What is a nanofiber? Fiber with diameter less than 100 nm. Why use a nanofiber? high surface-to-volume ratio, high porosity, improvedphysicochemical properties Electrospinning Electrostatic production of fibers.Aligned Electrospinning (Katta et al. 2004)
Problem Does having a rotating and translating target affect thealignment of electrospun nanofibers?Objective To determine effect of aligned electrospinning onnanofibers.Hypothesis Having rotational and x-translational target will produceuniform fibers.
Procedure Overview Non-aligned electrospun nanofiber synthesis. Characterized for comparison with previouslysynthetized aligned electrospun nanofibers.
Electrospinning The solution will run from the anode (syringe to thecathode 1ml of the 3% PEO / 95% ethanol stock solutionelectrospun at 0.50ml/hour at 20.0 KV
Sputtering The atoms of the target deposit on the substrate bydiffusion and electrical conductivity. The metal will deposit on the fiber, forming a thin pellicleor film denominated “shell”.