A nonwoven article includes a plurality of electrospun polycrystalline, aluminosilicate ceramic filaments that form a cohesive nonwoven mat. Each of the aluminosilicate ceramic filaments in the mat have an average diameter of about 200 nm to about 1000 nm as determined with electron microscopy, and the aluminosilicate ceramic filaments have an average crystalline mullite content of about 15 wt % to about 80 wt %.

A metal deposition-based stretchable electrode using an electrospun mat and a manufacturing method therefor are disclosed. The stretchable electrode is a stretchable electrode comprising a conductive mat, wherein the conductive mat comprises: nanofibers including a polymer; and a conductive layer formed on the surface of the nanofibers and including a conductor. The stretchable electrode has air/fluid permeability and may have conductivity that exhibits a stable change even in a biaxial deformation environment.

The present invention relates to [1] a concavo-convex plate for an electrospinning method, in which a surface resistivity of the concavo-convex plate is not more than 1×10.sup.−2Ω/□, and the concavo-convex plate has an uneven structure on at least a part of a surface thereof, and [2] a process for producing a nonwoven fabric containing nanofibers by an electrospinning method using the concavo-convex plate for an electrospinning method according to the aforementioned [1] as a collector, which includes the step of depositing the nanofibers on a surface of the concavo-convex plate on which the uneven structure is formed.

A method and an apparatus for fabricating nanofibrous articles is disclosed. The method may include providing a double-walled nozzle with an inner tube coaxially disposed within an outer tube. In addition, the double-walled nozzle is secured in front of a collector and an electrical field is applied between a tip of the double-walled nozzle and the collector. The method further includes preparing a spinning solution by dissolving a polymer in a solvent, mixing a vapor stream of the solvent with a stream of a pressurized gas with a predetermined ratio to obtain a pressurized solvent/gas stream feeding the spinning solution through the inner tube of the double-walled nozzle, and concurrently feeding the pressurized solvent/gas stream through the outer tube of the double-walled nozzle. The spinning solution and the pressurized solvent/gas stream may concurrently be discharged from the double-walled nozzle and drawn toward the collector being collected as nanofibrous articles on the collector.

An intraluminal endoprosthesis has a biodegradable metallic supporting structure and a biodegradable sleeve surrounding the supporting structure. The sleeve includes fibres applied to the outer side of the supporting structure. The sleeve can be formed from fibres that each have a polymer core and a hydrogel casing. The sleeve can the sleeve be formed from a fibre mixture of polymer fibres and hydrogel fibres.

A nonwoven web obtained by electrospinning, suitable for the filtration of nano- and/or submicron aerosols, including a multiplicity of fibers of composition C1, the composition C1 including at least 50% by weight of at least one polymer P1 based on the repeat unit resulting from vinylidene fluoride (VDF), the fibers of composition C1 having a degree of crystallinity in polar phase(s), preferentially in solely beta phase, of at least 65% by weight, with respect to their total weight. Also, a process for the manufacture of the web, to a membrane including the web and also to a process for the washing/sterilization of the web or of the membrane.

An electrospinning device includes: a plurality of nozzles that discharge a spinning solution containing a resin; and a plurality of power sources for applying charge to the solution. The power sources are connected such that different charges are applied to the solutions discharged from the nozzles, respectively. The fiber sheet is a long fiber nonwoven fabric including first fibers and second fibers that are different from the first fibers. In a histogram based on fiber diameter distributions and frequencies of the numbers of fibers, the fiber sheet has a peak where a ratio P1 of a frequency of the number of fibers of the first fibers to a frequency of the number of fibers of the second fibers is 0.01 or more and 100 or less. Alternatively, the fiber sheet has two or more peaks in the histogram, in which a ratio P2 of a frequency of the number of fibers of the first fibers at a highest peak in a range of a fiber diameter of 3 μm or less to a frequency of the number of fibers of the second fibers at a highest peak in a range of a fiber diameter of more than 3 μm is 1 or more and 1 000 or less.

The present disclosure relates to a nozzle block applied to an electrospinning device, which includes a radiation nozzle having a hollow radiation needle for discharging a spinning solution to the outside; a means of piercing having a diameter smaller than that of the radiation needle, at least one of which is coaxially disposed inside the radiation needle; and a reciprocating mechanism for reciprocating the means of piercing and the radiation needle relative to each other, thereby preventing the solution from being solidified at the tip of the radiation nozzle or the radiation nozzle from being blocked by external contaminants even if the electrospinning process is temporarily interrupted in the middle.

A functionally gradient material for guided periodontal hard and soft tissue regeneration includes a 3D printed scaffold layer and an electrospun fibrous membrane layer. The content of hydroxyapatite in the 3D printed scaffold layer is higher than the content of hydroxyapatite in the electrospun fibrous membrane layer. The pore size of the 3D printed scaffold layer is larger than the pore size of the electrospun fibrous membrane layer. The pore size of the 3D printed scaffold layer is 100-1000 μm, and the fiber diameter of the electrospun fibrous membrane layer is 300-5000 nm. The electrospun fibrous membrane layer is in a random distribution or an oriented arrangement or has a mesh structure. The thickness of the electrospun fibrous membrane layer is 0.08-1 mm.

A composite implant device for use in a medical application, comprising a synthetically-derived mesh that mimics particular critical aspects of a biologically-derived mesh. The composite implant device can be used for the reinforcement and reconstruction of tissues within the body and can be comprised of a majority of synthetic components and minority of naturally-derived components which mimic the structure and function of a naturally-derived mesh.