Necklace-like Fiber Fabrication Via Melt Electrospinning Writing
Yingchun Su,
phd student,
Harbin Institute of Technology; Aarhus University
The necklace-like fibers were fabricated using electrospinning technique. Poly-N,N'-[(4,5-dihydroxy-1,2-phenylene)bis(methylene)]bisacrylamide (POHABA) nanospheres with broad-spectrum bacteria inhibitory effect as “pearls” were embedded in poly(ethylene oxide) (PEO) substrates to form necklace-like fibers. Using PEO/POHABA as filter membrane, excellent removal efficiency of PM2.5 was achieved. The necklace-like fiber membrane has a great potential in the fields of aero filter. Additionally, the necklace-like poly (vinylidene fluoride) (PVDF) fibers were also prepared with Al particles through electrospinning. PVDF is a common piezoelectric polymer, which can output transient charges on surface by mechanical stimulation. While Al can be used to promote the mechanical and conductive properties. Melt electrospinning writing (MEW) is a new technology combining 3D printing and electrospinning to produce microscale miniaturized 3D structures. We want to yield boxed necklace-like fiber scaffold for tissue engineering via this novel technology. The PEO/POHABA scaffold possesses excellent efficacies in inactivating a wide range of microorganisms which can be used for wound healing. Moreover, the PVDF/Al scaffold is possible to be regarded as a ultrasounds-stimulation nanogenerator for neuron stimulation.
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