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Gold-based nanocrystals for medical treatments and electrochemical manufacturing processes therefor

  • US 10,449,217 B2
  • Filed: 03/21/2017
  • Issued: 10/22/2019
  • Est. Priority Date: 07/08/2009
  • Status: Active Grant
First Claim
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1. A suspension comprising:

  • a.) water;

    b.) at least one processing enhancer comprising at least one material selected from the group consisting of sodium bicarbonate, sodium carbonate, potassium bicarbonate, potassium carbonate, trisodium phosphate, disodium phosphate, monosodium phosphate, and potassium phosphates;

    c.) gold nanocrystals suspended in said water forming a suspension, wherein said gold nanocrystals;

    i.) having surfaces that do not have organic chemical constituents adhered or attached to said surfaces;

    ii.) having a mode particle size of less than about 50 nm;

    iii.) are present in said suspension at a concentration of at least 2 ppm by weight per volume; and

    d.) said suspension having a pH of between about 5 to about 9.5, said gold nanocrystals having a zeta potential of about −

    20 mV or lower at a temperature of about 25°

    C., said zeta potential being determined by measuring the electrophoretic mobility of the gold nanocrystals in the suspension, and the suspension does not contain chloride ions.

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