Provided are a nanofiber-nanowire composite and a method for producing the same. The method includes preparing a nanoparticle using a dipolar solvent, producing a nanofiber-nanoparticle composite in an electrospinning synthesis solution including the nanoparticle through electrospinning, and growing a nanowire from the nanoparticle by hydrothermally synthesizing a dried nanofiber-nanoparticle composite.

We describe a nozzle for a three-dimensional, 3D, ink printer, wherein the nozzle comprises: a channel configured to guide ink through the nozzle, and an output portion coupled to the channel, wherein the output portion is configured to output the ink, wherein the output portion comprises an elongated output channel configured to output the ink at different locations along a length of the elongated output channel simultaneously.

A device (1a . . . 1i) for processing thermoplastic plastic is described, comprising a storage container (2) for receiving pieces of plastic particles or a conveying line (14) for conveying the pieces of plastic particles, and a conveying screw (3) following the storage container (2)/the conveying line (14) at a transfer opening (A). The device (1a . . . 1i) also comprises an extruder (4) following the conveying screw (3) and an air outlet (7) arranged opposite the transfer opening (A) and directed at this opening. A method for operating the device (1a . . . 1i) is also described, in which an air stream is aligned with the transfer opening (A). The strength and/or the direction of the air stream is adjusted or controlled as a function of a load on the extruder (4).

A system for electrospinning a fiber matrix on a tubular member includes at least one nozzle, a tubular member in a spaced relationship to the at least one nozzle, and a fluid source for pressurizing a lumen of the tubular member. An electrical potential is applied between the at least one nozzle and either the tubular member or fluid from the fluid source. The electrical potential draws at least one fiber from the at least one nozzle to the tubular member.

A method of producing a piezoelectric nanofiber web, includes: dissolving polylactic acid in a solvent, thus preparing a spinning solution; and electrospinning the spinning solution, yielding a nanofiber web, wherein at least 80% of a monomer for the polylactic acid comprises an L-isomer or a D-isomer, and wherein the solvent is a mixture comprising chloroform and one of N,N-dimethylacetamide(DMAc), N,N-dimethylformamide(DMF) and dimethylsulfoxide(DMSO).

A method is for producing an x-ray scattered radiation grid. In an embodiment of the method, a first material which absorbs x-ray radiation, is extruded through a matrix such that the x-ray scattered radiation grid with through-channels permeable to x-ray radiation is formed as an extrudate. An embodiment of the invention is advantageous in that x-ray scattered radiation grids can be produced with high precision and cost-effectively.

A production line is, suitable for the production of medicinal products that include at least one active ingredient. The production line includes an extruder for producing an extrudate from the active ingredient and at least one excipient intended to form an encapsulating matrix of the active ingredient, and a cooling member for cooling the extrudate at the outlet of the extruder. The extruder includes a barrel and at least two parallel screws housed in the barrel and interpenetrating with one another to mix the or each active ingredient with the or each excipient. The barrel is oriented vertically and the footprint occupied by the production line is less than 0.5 m.sup.2.

The present invention includes a robotic system for the enhanced automation, manipulation, and control of electroprocessing in two or three dimensions. In one embodiment, the system includes a sealed chamber devoid of any electrical or conductive components which would interfere with the electrical field and eventual material fabrication, while still allowing for two-dimensional and three-dimensional robot motion. In certain embodiments, the system of the invention produces materials or scaffolds with complex shapes, including materials with ridges, valleys, curves, and the like, which are difficult or impossible to construct using traditional systems.

A structure of aligned (e.g., radially and/or polygonally aligned) fibers, and systems and methods for producing and using the same. One or more structures provided may be created using an apparatus that includes one or more first electrodes that define an area and/or partially circumscribe an area. For example, a single first electrode may enclose the area, or a plurality of first electrode(s) may be positioned on at least a portion of the perimeter of the area. A second electrode is positioned within the area. Electrodes with rounded (e.g., convex) surfaces may be arranged in an array, and a fibrous structure created using such electrodes may include an array of wells at positions corresponding to the positions of the electrodes.

The present invention discloses an electrospinning composition comprising a catalyst and a functionalized polymer or copolymer bearing one or more epoxy ring. The mixture further comprises an anhydride, preferably phthalic anhydride as a cross-linking agent. Wherein a molar ratio of epoxy to anhydride in the electrospinning composition is within the range of 1:1 to 50:1. The present invention further discloses a preparation method of the electrospinning composition and an electrospun nano-/submicrostructures prepared using the method and composite material comprising the electrospun nano-/submicrostructures.