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Systems and methods of forming particles

  • US 20070054119A1
  • Filed: 03/03/2006
  • Published: 03/08/2007
  • Est. Priority Date: 03/04/2005
  • Status: Abandoned Application
First Claim
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1. A collection of articles comprising a plurality of particles, at least some of which are non-spherical;

  • and/or comprise a metal and/or a magnetizable material and/or a nylon and/or a ferrofluid; and

    /or at least some of which particles have a ratio of a largest dimension to a smallest dimension that is less than about 5; and

    /or at least some of which particles have a porosity of at least about 0.1; and

    /or at least some of which particles are microparticles having a core and a shell, the shell comprising a semi-permeable portion and/or a polymer made by a process comprising urging a fluid comprising a polymer precursor into a microfluidic channel, and hardening the polymer precursor in the channel to form the polymer;

    wherein the particles have an average dimension of less than about 500 micrometers and a distribution of dimensions such that no more than about 5% of the particles have a dimension greater than about 10% of the average dimension.

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