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Electrospinning process for manufacture of multi-layered structures

  • US 8,968,626 B2
  • Filed: 01/31/2012
  • Issued: 03/03/2015
  • Est. Priority Date: 01/31/2011
  • Status: Active Grant
First Claim
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1. A method of forming a structure, the structure comprising a core including a first material and a sheath including a second material around said core, the method comprising the steps of:

  • providing an apparatus, comprising;

    a first wedge-shaped vessel having a first slit at an apex thereof, and including an electrically conductive material;

    a second wedge-shaped vessel including a second slit at an apex thereof, wherein the first wedge-shaped vessel is disposed inside of the second vessel such that each of the first and second slits are aligned;

    first and second fluid reservoirs containing the first and second materials, respectively, wherein the first and second fluid reservoirs are in fluid communication with the first and second wedge-shaped vessels, respectively; and

    a voltage source configured to apply a voltage to at least one of the first and second materials;

    activating the voltage source to apply a voltage of between 1 and 100 kV;

    pumping the first fluid from the first fluid reservoir to the first wedge-shaped vessel; and

    pumping the second fluid from the second fluid reservoir to the second wedge-shaped vessel.

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