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Systems for the control and use of fluids and particles

  • US 8,501,919 B2
  • Filed: 11/13/2007
  • Issued: 08/06/2013
  • Est. Priority Date: 04/19/2005
  • Status: Active Grant
First Claim
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1. A method of forming a chitosan formable material comprising the steps of:

  • dissolving chitosan in an acidic liquid;

    displacing at least some of the acid from the acidic solution while maintaining the pH of the chitosan formable material low enough to avoid chitosan precipitation by bubbling carbon dioxide through the chitosan and acidic liquid solution; and

    adding sufficient organic solvent to lower the conductivity to a level that permits electrospinning.

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