PVP microfibers via electrospinning technique
Polyvinylpyrrolidone (PVP) electrospun micro fibers on glass observed by optical microscopy. To obtain microfibers of PVP, a solution of PVP/ethanol (24% w / w) was inserted into a single needle syringe with inner needle diameter of 0.43 mm. The solution was electrospun in a electrospinning apparatus. The distance between the needle and the collector was set to be 10 cm and the applied voltage was 15 kV. The fibers were collected on a glass slide over the aluminum plate. When the voltage difference is applied, the liquids inside the needle stretch and thus, micro and nano fibers are created.
Image taken by Maider Rekondo Salsamendi.