FABRICATION OF FUNCTIONAL NANOFIBERS BY NEW ELECTROSPINNING TECHNIQUES AND THEIR APPLICATIONS IN NANOELECTRONICS AND MEDICAL SCIENCE

摘要

Some new electrospinning (e-spinning) techniques and devices have been developed in the past several years. For example, centrifugal e-spinning (or double spinning), portable hand-hold e-spinning device, reciprocating-type e-spinning, and airflow-directed in situ e-spinning, etc. Here, we report the fabrication of curled conducting polymer (PEDOT:PSS-PVP) micro-/nanofibrous arrays via a novel reciprocating-type e-spinning method for stretchable strain sensors, as well as the fabrication of p-type ZnO nanofibers by e-spinning for field-effect and rectifying devices. In addition, we also report the first use of the airflow-directed in situ electrospinning method to precisely and homogeneously deposit n-octyl-2-cyanoacrylate (OCA, a medical glue) ultrathin fibers onto wound surface to realize rapid hemostasis in several to dozens of seconds, as shown in Figure 1.