A fiber collection tool for collecting a fiber spun by electrospinning is described. The fiber collection tool has a size holdable by the hand of a user, and includes, in at least a portion of the surface thereof, an electroconductive section having a surface electrical resistivity of 10.sup.11 Ω/cm.sup.2 or less, or a hydrophilic section having a water contact angle of preferably from 15° to 90° at 25° C. A user collects, with the fiber collection tool, a fiber spun by the user by electrospinning using an electrospinning device having a size holdable by the hand of the user, and thereby produces a film including a deposit of the fiber on a surface of the fiber collection tool. The fiber collection tool, having the deposit formed thereon, is pressed against a surface of an object, and the deposit is transferred onto the surface of the object, to form a film including the fiber deposit on the surface of the object.

A method for forming an ultra-high temperature (UHT) composite structure includes dispensing a first polymeric precursor with a spinneret; forming a first plurality of nanofibers from the first polymeric precursor; depositing the first plurality of nanofibers with a collector; and applying a fluid, with a nozzle, onto the first plurality of nanofibers disposed on the collector. The fluid includes a second polymeric precursor.

The present invention provides a method for fabricating patterned cellulose nanocrystal (CNC) composite nanofibers and thin films for optical and electromagnetic sensor and actuator application, comprising the following steps of: selecting materials for fabricating patterned cellulose nanocrystal (CNC) composite nanofibers; and fabricating patterned CNCs composite nanofibers by incorporating secondary phases either during electrospinning or post-processing, wherein the secondary phases may include dielectrics, electrically or magnetically activated nanoparticles or polymers and biological cells in mechanically reinforced by CNCs.

The system for nano-coating a substrate (10) includes a housing (12) having an upper, dispensing chamber (18) in which electrospraying or electrospinning can occur, a lower storage chamber, and a wall (16) that separates the dispensing chamber (18) from the storage chamber. The dispensing chamber (18) includes first and second panels (24a), (24b) and a moveable collector (20) between the first and second panels (24a), (24b). Solution dispensing nozzles (26) are disposed in apertures (45) in the panels (24a), (24b), and extend from a front surface of each panel (24a), (24b). A plurality of solution supply tubes (54) extend from a rear surface of each panel (24a), (24b) to a pump (34) in the lower housing. Inner panel channels (52) are defined within each panel (24a), (24b) between the tubes (54) and the nozzles (26).

A device having: an article having a flat surface and a lower surface opposed to the flat surface; a cavity formed in the lower surface forming a complete loop surrounding a central portion of the article; a heating element having the same shape as the complete loop in the cavity and positioned to warm a portion of the flat surface adjacent to the heating element when the heating element is activated; a cooling device positioned to cool a portion of the flat surface in the central portion; and a release layer on the flat surface. A device having: an article having an upper surface; a heating element on the upper surface forming a complete loop surrounding a central portion of the article; and an electrically insulating material on the upper surface within the central portion.

Provided herein are electrospirming apparatuses and methods for efficient production of nanofiber structures.

An electrostatic spinning device including a nozzle that sprays spinning liquid that has been charged; a switch that controls spray operation of the spinning liquid; and a housing that includes a bulging portion and a grip portion for grip of the user, the bulging portion bulging outward from a virtual line connecting a tip of the nozzle and an end of the switch on a side of the nozzle, an angle formed by an axis of the nozzle and an axis of the grip portion being 45 degrees or more.

A three-dimensional electrospun nanofiber scaffold for use in repairing a defect in a tissue substrate is provided. The three-dimensional electrospun nanofiber scaffold includes a first layer formed by a first plurality of electrospun polymeric fibers and a second layer formed by a second plurality of electrospun polymeric fibers. The second layer is coupled to the first layer using a coupling process and includes a plurality of varying densities formed by the second plurality of electrospun polymeric fibers. The first and second layers are configured to degrade via hydrolysis after at least one of a predetermined time or an environmental condition. The three-dimensional electrospun nanofiber scaffold is configured to be applied to the tissue substrate containing the defect.

An electrospinning system, method, and apparatus comprises a dual polarity high voltage power supply with much less power out for safe operation, a solution dispensing assembly held at high positive potential by the dual polarity power supply, a Corona discharge assembly held at high negative potential by the dual polarity power supply, and a drum collector held at ground potential wherein a solution is drawn from the solution dispensing assembly to the drum collector thereby forming a fiber mat.

The present invention provides a preparation method of a material for a puncture-resistant artificial blood vessel. The artificial blood vessel prepared by the method comprises two layers: the dense outer layer and the electrospun inner layer, the structures of these two layers are combined tightly and are inseparable, so that the properties of blood oozing resistance and repeated puncture resistance required by the artificial blood vessel can be provided. The puncture-resistant artificial blood vessel provided by the present invention has excellent biocompatibility, blood compatibility and flexibility and has the functions of blood oozing resistance and repeated puncture resistance. The method provided by the present invention has the characteristics such as convenience in operation, simplicity in production process and liability to the realization of large scale.