Results 1 to 10 of about 72,036 (207)
Near-Field Electrospinning [PDF]
Nano Letters, 2006 A near-field electrospinning (NFES) process has been developed to deposit solid nanofibers in a direct, continuous, and controllable manner. A tungsten electrode with tip diameter of 25 microm is used to construct nanofibers of 50-500 nm line width on silicon-based collectors while the liquid polymer solution is supplied in a manner analogous to that ...
Daoheng Sun +3 more
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Effects of Orthogonal Rotating Electric Fields on Electrospinning Process [PDF]
Physics of Fluids, 29, 082003 (2017), 2016 Electrospinning is a nanotechnology process whereby an external electric field is used to accelerate and stretch a charged polymer jet, so as to produce fibers with nanoscale diameters. In quest of a further reduction in the cross section of electrified jets hence of a better control on the morphology of the resulting electrospun fibers, we explore the
Allen M. P. +12 more
arxiv +3 more sources
Effects of non-linear rheology on the electrospinning process: a model study [PDF]
Mechanics Research Communications, vol. 61, pp. 41-46, 2014, 2014 We develop an analytical bead-spring model to investigate the role of non-linear rheology on the dynamics of electrified jets in the early stage of the electrospinning process. Qualitative arguments, parameter studies as well as numerical simulations, show that the elongation of the charged jet filament is significantly reduced in the presence of a non-
Coluzza, Ivan +4 more
arxiv +3 more sources
Non-linear Langevin model for the early-stage dynamics of electrospinning jets [PDF]
, 2015 We present a non-linear Langevin model to investigate the early-stage dynamics of electrified polymer jets in electrospinning experiments. In particular, we study the effects of air drag force on the uniaxial elongation of the charged jet, right after ejection from the nozzle.
Lauricella, Marco +3 more
arxiv +3 more sources
Different regimes of the uniaxial elongation of electrically charged viscoelastic jets due to dissipative air drag [PDF]
Mechanics Research Communications, vol. 69, pp.97-102, 2015, 2015 We investigate the effects of dissipative air drag on the dynamics of electrified jets in the initial stage of the electrospinning process. The main idea is to use a Brownian noise to model air drag effects on the uniaxial elongation of the jets. The developed numerical model is used to probe the dynamics of electrified polymer jets at different ...
Coluzza, Ivan +4 more
arxiv +3 more sources
Ultrasound-enhanced electrospinning [PDF]
Scientific Reports, 2018 Electrospinning is commonly used to produce polymeric nanofibers. Potential applications for such fibers include novel drug delivery systems, tissue engineering scaffolds, and filters.
Heikki J. Nieminen +6 more
doaj +6 more sources
JETSPIN: a specific-purpose open-source software for simulations of nanofiber electrospinning [PDF]
, 2015 We present the open-source computer program JETSPIN, specifically designed to simulate the electrospinning process of nanofibers. Its capabilities are shown with proper reference to the underlying model, as well as a description of the relevant input variables and associated test-case simulations.
Coluzza, Ivan +4 more
arxiv +4 more sources
Chemistry – An Asian Journal, 2010 AbstractMelt electrospinning is relatively under‐investigated compared to solution electrospinning but provides opportunities in numerous areas, in which solvent accumulation or toxicity are a concern. These applications are diverse, and provide a broad set of challenges to researchers involved in electrospinning.
Dietmar W. Hutmacher, Paul D. Dalton
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Dynamic mesh refinement for discrete models of jet electro-hydrodynamics [PDF]
, 2015 Nowadays, several models of unidimensional fluid jets exploit discrete element methods. In some cases, as for models aiming at describing the electrospinning nanofabrication process of polymer fibers, discrete element methods suffer a non constant resolution of the jet representation.
Akima +32 more
arxiv +3 more sources
Electrospinning to Forcespinning™
Materials Today, 2010 A new process called Forcespinning™ has been developed to make nanofibers from a wide range of materials. This new method uses centrifugal force, rather than electrostatic force as in the electrospinning process. The Forcespinning™ method uses either solutions or solid materials that are solution or melt spun into nanofibers.
Kamal Sarkar +6 more
openalex +3 more sources