Abstract: A fiber may comprise an electrospun polymer and a pharmaceutical. The pharmaceutical may be dispersed within the electrospun polymer, and may have the form of a crystal, an oil, or a combination thereof. A method of making an electrospun fiber may comprise configuring a receiving surface to receive a polymer fiber, applying a charge to one or more of the receiving surface, a polymer injection system, and a polymer solution ejected from the polymer injection system, and depositing a polymer solution ejected from the polymer injection system onto the receiving surface. The polymer solution may comprise a polymer and a pharmaceutical. A method of treating a disorder in a subject may comprise obtaining such a fiber having an effective amount of a pharmaceutical, applying the fiber to an oral region of the subject, and allowing the fiber to disintegrate, thereby delivering the effective amount of the pharmaceutical to the subject.

Abstract: A scaffold may comprise a first polymeric electrospun fiber comprising a first material having a first degradation rate, and a second polymeric electrospun fiber comprising a second material having a second degradation rate different from the first degradation rate. The first degradation rate may substantially correspond to a cell infiltration rate, and the second degradation rate may be slower than the first degradation rate. Such a scaffold may be manufactured by electrospinning a first polymer fiber having a first degradation rate by ejecting a first polymer solution from a first polymer injection system onto a mandrel, and electrospinning a second polymer fiber having a second degradation rate different from the first degradation rate by ejecting a second polymer solution from a second polymer injection system onto a mandrel. Wound healing may be improved by applying such a scaffold to a portion of a wound.

Abstract: A method of treating a chronic wound may comprise applying to the wound a first scaffold comprising an electrospun polymer fiber. The electrospun fiber may comprise a polymer selected from the group consisting of polyglycolic acid, poly(lactide-co-caprolactone), polylactic acid, polycaprolactone, copolymers thereof, and combinations thereof. The first scaffold may have a thickness from about 50 ?m to about 1 mm, a length from about 1 cm to about 20 cm, and a width from about 1 cm to about 15 cm. The method may further comprise keeping the first scaffold on the chronic wound for a time period of about 3 days to about 21 days. After the time period passes, the chronic wound may have a decreased planimetric area.

Abstract: A method of treating a chronic wound may comprise applying to the wound a first scaffold comprising an electrospun polymer fiber. The electrospun fiber may comprise a polymer selected from the group consisting of polyglycolic acid, poly(lactide-co-caprolactone), polylactic acid, polycaprolactone, copolymers thereof, and combinations thereof. The first scaffold may have a thickness from about 50 ?m to about 1 mm, a length from about 1 cm to about 20 cm, and a width from about 1 cm to about 15 cm. The method may further comprise keeping the first scaffold on the chronic wound for a time period of about 3 days to about 21 days. After the time period passes, the chronic wound may have a decreased planimetric area.

Abstract: Described herein are electrospun core-shell fibers that include (i) a central core that is electrically conductive having an exterior surface, wherein the core comprises a first polymer and an electroconductive material; (ii) a shell adjacent to the exterior surface of the core, the shell comprising a second polymer; and (iii) one or more bioactive agents in the shell. In one aspect, the fibers are electrospun fibers. Additionally, described herein are methods for making and using the core-shell fibers.

Abstract: An embolization device may include a fiber section having a plurality of polymeric electrospun fibers and, optionally, a contrast agent. An embolization device may further include a plurality of fiber sections, wherein each fiber section is separated by a linker. A method of deploying such an embolization device may include inserting the embolization device into a vessel. The method may further include applying an electrical current to one or more of the linkers, applying electrothermal heat to at least a portion of the device, or applying force to at least a portion of a delivery vehicle for the device. A method of manufacturing the device may include electrospinning a fiber section, and processing the fiber section by straining, twisting, heating, or shaping it.

Abstract: The invention provides devices for supporting regeneration of body tissue and of tubular structures, such as the esophagus or intestine, and methods for making and for using the devices.

Abstract: Described herein are electrospun nanofiber structures and compositions configured to serve as TNT-based platforms for the delivery of an agent or cargo, such as genetic material. The structures can include a conductive nanofiber comprising a shell electrospun from an insulating polymer, wherein the shell comprises a plurality of nanochannels therethrough, a conductive element, and an agent contained within the shell. The conductive nanofiber can be configured to deliver the agent when exposed to an electric field. The agent can include a therapeutic agent, a prophylactic agent, or a diagnostic agent.

Abstract: A fiber may comprise an electrospun polymer and a contrast agent. A method of making an electrospun fiber may comprise configuring a receiving surface to receive a polymer fiber, applying a charge to one or more of the receiving surface, a polymer injection system, and a polymer solution ejected from the polymer injection system, and depositing a polymer solution ejected from the polymer injection system onto the receiving surface. The polymer solution may comprise a polymer and a contrast agent.

Abstract: A substrate for culturing cells that includes at least one fiber scaffold adapted to be contained within a disposable or non-disposable bioreactor, wherein the fiber scaffold further includes polymer fibers that have been created by electrospinning, and wherein the orientation of the fibers in the scaffold relative to one another is generally parallel, random, or both.

Abstract: The invention provides for engineered intestinal construct and methods of making these constructs. The invention also provides for methods of treating short bowel syndrome or methods of repairing an intestine after resection comprising inserting an engineered intestinal construct into the intestine of a subject in need.

Abstract: The instant disclosure is directed to methods of improving bone-soft tissue healing using biocompatible electrospun polymer fibers. In one embodiment, a method may include locating a portion of a subject's bone, affixing a tendon or ligament to the bone using a hardware fixture, and placing a patch comprising at least one electrospun polymer fiber in physical communication with both the bone and the tendon or ligament. In some embodiments, the bone may be a humerus, and the tendon or ligament may be a supraspinatus tendon. In certain embodiments, the patch may comprise substantially parallel electrospun polymer fibers, and may be placed such that the fibers are also substantially parallel with the long axis of the tendon or ligament.

Abstract: A method for generating a electro spun fiber medical implant including determining dimensions of a portion of anatomy of a patient corresponding to the electro spun fiber medical implant via medical imaging, generating a model of the portion of the anatomy based on the dimensions, the model including one or more solid areas and one or more void areas encompassed within the one or more solid areas, inverting the model to generate a mandrel model, the mandrel model generated based on the one or more void areas, generating the mandrel based on the mandrel model, the mandrel including at least one electrically conductive material therein, and applying an electro-spinning process to the mandrel to generate the electro spun fiber medical implant which circumscribes the mandrel, wherein the mandrel is removable from within the electro spun fiber medical implant after a disassembly process.

Abstract: An angioplasty device may comprise a catheter, a balloon disposed on the catheter, and a scaffold disposed over the balloon. The scaffold may comprise an electrospun polymer fiber and an agent dispersed within the fiber. A method of making such an angioplasty device may comprise obtaining a catheter having a balloon disposed on it, contracting the balloon, and electrospinning a polymer solution onto the surface of the catheter having the balloon, thereby forming a scaffold disposed over the balloon. The polymer solution may comprise a polymer, a solvent, and an agent. A method of performing an angioplasty procedure may comprise inserting such an angioplasty device into a blood vessel, placing the angioplasty device near a lesion within the blood vessel, expanding the balloon, thereby contacting the lesion with the scaffold, contracting the balloon, and removing the angioplasty device from the blood vessel.

Abstract: A method of treating a chronic wound may comprise applying to the wound a first scaffold comprising an electrospun polymer fiber. The electrospun fiber may comprise a polymer selected from the group consisting of polyglycolic acid, poly(lactide-co-caprolactone), polylactic acid, polycaprolactone, copolymers thereof, and combinations thereof. The first scaffold may have a thickness from about 50 ?m to about 1 mm, a length from about 1 cm to about 20 cm, and a width from about 1 cm to about 15 cm. The method may further comprise keeping the first scaffold on the chronic wound for a time period of about 3 days to about 21 days. After the time period passes, the chronic wound may have a decreased planimetric area.

Abstract: A scaffold may comprise a first polymeric electrospun fiber comprising a first material having a first degradation rate, and a second polymeric electrospun fiber comprising a second material having a second degradation rate different from the first degradation rate. The first degradation rate may substantially correspond to a cell infiltration rate, and the second degradation rate may be slower than the first degradation rate. Such a scaffold may be manufactured by electrospinning a first polymer fiber having a first degradation rate by ejecting a first polymer solution from a first polymer injection system onto a mandrel, and electrospinning a second polymer fiber having a second degradation rate different from the first degradation rate by ejecting a second polymer solution from a second polymer injection system onto a mandrel. Wound healing may be improved by applying such a scaffold to a portion of a wound.

Abstract: The instant disclosure is directed to devices and methods for water filtration. A filter may comprise electrospun polymer fibers comprising an effective amount of an additive. The additive may be configured to react with chlorine. A method of manufacturing such a filter may comprise mixing a homogeneous solution comprising a polymer, a solvent, and an effective amount of an additive. The method may further comprise electrospinning the mixture onto a mandrel to form a scaffold comprising electrospun polymer fibers and the additive, and removing the scaffold from the mandrel to form a filter. A method of filtering a chlorine-containing liquid may comprise exposing the chlorine-containing liquid to such a filter, and exposing the chlorine-containing liquid to the filter may produce a purified liquid. The method may further include collecting the purified liquid. The purified liquid may contain about 85% less chlorine than the chlorine-containing liquid.

Abstract: The instant disclosure is directed to methods of promoting the healing of concave wounds. A method for promoting the healing of a concave wound may comprise placing a scaffold over the concave wound, the scaffold comprising an electrospun polymer fiber. The scaffold may be pressed into the concave wound, such that the scaffold simultaneously contacts at least a bottom portion of the concave wound and at least a side portion of the concave wound. The method may be suture free. The scaffold employed in such a method may have an asterisk shape comprising a center and at least two spokes, and pressing the scaffold into the concave wound may comprise pressing the center of the scaffold into the bottom portion of the concave wound, and allowing the at least two spokes of the scaffold to fold upward to contact the side portion of the concave wound.

Abstract: An embolization device may include a fiber section having a plurality of polymeric electrospun fibers and, optionally, a contrast agent. An embolization device may further include a plurality of fiber sections, wherein each fiber section is separated by a linker. A method of deploying such an embolization device may include inserting the embolization device into a vessel. The method may further include applying an electrical current to one or more of the linkers, applying electrothermal heat to at least a portion of the device, or applying force to at least a portion of a delivery vehicle for the device. A method of manufacturing the device may include electrospinning a fiber section, and processing the fiber section by straining, twisting, heating, or shaping it.

Abstract: The instant disclosure is directed to devices and methods for facilitating bone growth. In one embodiment, a device may include a porous flexible tube comprising an electrospun fiber. The porous flexible tube may also comprise a closed end. The device may further comprise a filler material at least partially encased by the porous flexible tube. A method of manufacturing such a device may comprise electrospinning a polymer solution onto an end of a cylindrical mandrel to form the porous flexible tube, and removing the porous flexible tube from the end of the cylindrical mandrel. A method of facilitating bone growth may comprise obtaining such a device, and implanting the porous flexible tube into a subject's bone defect.