Multijet Electrospinning of Conducting Nanofibers from Microfluidic Manifolds
نویسندگان
چکیده
We present a method for the electrospinning of conducting polymeric composite nanofibers using a poly(dimethyl siloxane) (PDMS)-based microfluidic device. To scale-up the process and spin multicomponent systems, we designed a unique multi-spinnerette electrospinning device using microchannels cast in PDMS. Nanofibers of poly (vinylpyrrolidone) and its composite with polypyrrole were successfully prepared using one-step and two-step microfluidic electrospinning. The effect of processing variables on the morphology of the nanofibers formed using this device was also studied. SEM images showed that fiber diameter and morphology strongly depend on processing parameters such as concentration, applied electric field, feed rate, solvent, and ionic salt addition. FTIR spectroscopy and conductivity measurements reveal the polymerization of pyrrole in the matrix of poly(vinyl pyrrolidone). 2007 Wiley Periodicals, Inc. J Appl Polym Sci 106: 3171–3178, 2007
منابع مشابه
Electrospinning of hollow and core/sheath nanofibers using a microfluidic manifold
In this article, we describe a microfluidic approach to fabricate hollow and core/sheath nanofibers by electrospinning. Key benefits in using microfluidic devices for nanofiber synthesis include rapid prototyping, ease of fabrication, and the ability to spin multiple fibers in parallel through arrays of individual microchannels. Hollow poly (vinylpyrrolidone) (PVP) + titania (TiO2) composite an...
متن کاملWater-Soluble Electrospun Nanofibers as a Method for On-Chip Reagent Storage
This work demonstrates the ability to electrospin reagents into water-soluble nanofibers resulting in a stable on-chip enzyme storage format. Polyvinylpyrrolidone (PVP) nanofibers were spun with incorporation of the enzyme horseradish peroxidase (HRP). Scanning electron microscopy (SEM) of the spun nanofibers was used to confirm the non-woven structure which had an average diameter of 155 ± 34 ...
متن کاملOptimization of electrospinning conditions for magnetic poly (acrylonitrile- co- acrylic acid) nanofibers
Magnetic poly (acrylonitrile-co-acrylic acid) (PAN-co-AA) composite nanofibers with different proportions of magnetic nanoparticles (MNPs) were fabricated using electrospinning technique. Electrospinning conditions like polymeric concentration, applied voltage, feeding rate, working distance, and collector type were explored and optimized to produce ultrafine- uniform size and bead free nanofib...
متن کاملFabrication of Biodegradable PCL Particles as well as PA66 Nanofibers via Air-Sealed Centrifuge Electrospinning (ASCES)
This study presents a method for fabrication of ultrafine polymeric nanofibers as well as nano/micro particles utilizing centrifugal and electrostatic forces simultaneously. To reduce the diameter and variety of nanofibers produced from solid state polymerized PA66, a unique electrocentrifuge spinning device was utilized with a rotating nozzle and collector, while the fabrication process (spinn...
متن کاملElectrospinning of Polyacrylonitrile Nanofibers and Simulation of Electric Field via Finite Element method
Objective(s): Since the electric field is the main driving force in electrospinning systems, the modeling and analysis of electric field distribution are critical to the nanofibers production. The aim of this study was modeling of the electric field and investigating the various parameters on polyacrylonitrile (PAN) nanofibers morphology and diameter. Methods:</st...
متن کامل