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Coated nanoparticles

  • US 6,548,264 B1
  • Filed: 05/17/2000
  • Issued: 04/15/2003
  • Est. Priority Date: 05/17/2000
  • Status: Expired due to Fees
First Claim
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1. A plurality of nanoparticles having a mean size of less than 1 micron, each of said nanoparticles comprising (a) a core comprising a pigment and (b) a silica shell enveloping the core, wherein the pigment is an inorganic salt selected from potassium permanganate, potassium dichromate, nickel sulfate, cobalt-chloride, iron(III) chloride, and copper nitrate.

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  • 4 Assignments
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