One-Step Multicomponent Encapsulation by Compound-Fluidic Electrospray

Chen, Hongyan; Zhao, Yong; Song, Yanlin; Jiang, Lei

doi:10.1021/ja801803x

Cited by 119 publications

(92 citation statements)

References 32 publications

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“…It is extensively used for the synthesis of non-crosslinked particles via precipitation of polymers from their solutions [243][244][245][246][247], and a limited number of reports describe monomer polymerization [248][249][250], all of which being about nonporous particles. Loscertales et al [248] successfully electrified a coaxial jet composed of two immiscible liquids, the outer one being a commercial photo-polymerizable resin.…”

Section: Other Techniquesmentioning

confidence: 99%

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Gökmen

Prez

2012

Progress in Polymer Science

446

309

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Section: Other Techniquesmentioning

confidence: 99%

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Gökmen

Prez

2012

Progress in Polymer Science

446

309

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“…[61][62][63] In a typical electrospinning process, a high voltage is applied to a nozzle, through which the polymer solution is pumped. Because of the evaporation of the solvent, the solution jet solidifies and forms a nonwoven film on the collector.…”

Section: Electrospinningmentioning

confidence: 99%

Recent developments in polymeric superoleophobic surfaces

Zhang

Liu

Jiang

2012

J Polym Sci B Polym Phys

Self Cite

226

168

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The construction and application of superoleophobic surfaces have aroused worldwide interest during the past few years. These surfaces are of great significance not only for fundamental research but also for various practical applications in self-cleaning, oil-repellent coatings, and antibioadhesion. The unique properties of polymers have made them one of the most important materials for constructing superoleophobic materials. This article reviews recent developments in the design, fabrication, and application of polymeric superoleophobic surfaces.

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“…[6][7][8] Most recently, even complex structures such as tri-axial nanofibers have also been investigated using multi-fluid electrospinning processes. [9][10][11][12] In sharp contrast, there are still very limited studies about the generation of sideby-side structures using these EHDA processes. [13][14][15][16][17][18][19][20][21] To create structures with double compartments, two types of relationships between components are feasible, one is the exterior and interior (i.e.…”

mentioning

confidence: 99%

Structure-tunable Janus fibers fabricated using spinnerets with varying port angles

Chen

et al. 2015

Chem. Commun.

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aThe preparation of Janus fibers using a new side-by-side electrospinning process is reported. By manipulating the angle between the two ports of the spinneret emitting the working fluids, Janus nanofibers with tunable structures in terms of width, interfacial area and also volume of each side can be easily fabricated.Among the different ''top-down'' processes for nanofabrication, electrohydrodynamic atomization processes (EHDA, including electrospinning, electrospraying and e-jetting printing) have the unique capability of simultaneous modulation of sizes, shapes and compartmentalization of their nanoproducts.1,2 This ability has been broadly exploited for the generation of core-shell nanostructures, both in the form of electrospun fibers, nanotubes 3-5 and electrosprayed particles or bubbles. [6][7][8] Most recently, even complex structures such as tri-axial nanofibers have also been investigated using multi-fluid electrospinning processes. [9][10][11][12] In sharp contrast, there are still very limited studies about the generation of sideby-side structures using these EHDA processes. [13][14][15][16][17][18][19][20][21] To create structures with double compartments, two types of relationships between components are feasible, one is the exterior and interior (i.e. a core-shell structure), and the other is side-by-side. The latter, being a heterojunction structure, can have an advantage for designing novel functional nanomaterials over the core-shell structures because it provides an opportunity for both components to interact with their surroundings. 22,23Side-by-side electrospinning involves a complex interplay between fluid dynamics, electrodynamics and rheology, and presents a challenge in controlling the movement in unison of two fluids in a side-by-side manner under an electrical field from spinneret to collector. To our knowledge, Gupta and Wilkes were the first to report the preparation of side-by-side polymer nanofibers, made of poly(vinyl chloride)/segmented polyurethane and poly(vinyl chloride)-poly(vinylidiene fluoride) using a spinneret consisting of two parallel Teflon capillaries.13 Lin et al. reported the preparation of self-crimping side-by-side nanofibers that spontaneously formed curled helical fibers, composed of polyacrylonitrile and polyurethane, using a homemade silicone microfluidic spinneret, which consisted of three capillary channels with two of them combined in another channel in parallel to form the side-by-side outlet. 14 Later, several publications describe the preparation of side-by-side nanofibers using spinnerets made from two syringes whose needle tips were confined in a side-byside geometry. [15][16][17][18] In all these studies it was possible to control the outlet of the double fluids in a parallel manner for successful preparation of Janus nanofibers. Using a different approach, we report here side-by-side electrospinning in which a series of spinnerets with varying port angles were exploited to create structure-tunable Janus fibers. Our initial purpose was to prepare high...

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One-Step Multicomponent Encapsulation by Compound-Fluidic Electrospray

Cited by 119 publications

References 32 publications

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Recent developments in polymeric superoleophobic surfaces

Structure-tunable Janus fibers fabricated using spinnerets with varying port angles

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