Patents by Inventor Stanislav V. Ermolaev

Stanislav V. Ermolaev has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods for chemical recovery of non-carrier-added radioactive tin from irradiated intermetallic Ti-Sb targets
    Patent number: 8097064
    Abstract: The invention provides a method of chemical recovery of no-carrier-added radioactive tin (NCA radiotin) from intermetallide TiSb irradiated with accelerated charged particles. An irradiated sample of TiSb can be dissolved in acidic solutions. Antimony can be removed from the solution by extraction with dibutyl ether. Titanium in the form of peroxide can be separated from tin using chromatography on strong anion-exchange resin. In another embodiment NCA radiotin can be separated from iodide solution containing titanium by extraction with benzene, toluene or chloroform. NCA radiotin can be finally purified from the remaining antimony and other impurities using chromatography on silica gel. NCA tin-117m can be obtained from this process. NCA tin-117m can be used for labeling organic compounds and biological objects to be applied in medicine for imaging and therapy of various diseases.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: January 17, 2012
    Assignee: Brookhaven Science Associates
    Inventors: Elena V. Lapshina, Boris L. Zhuikov, Suresh C. Srivastava, Stanislav V. Ermolaev, Natalia R. Togaeva
  • METHODS FOR CHEMICAL RECOVERY OF NON-CARRIER-ADDED RADIOACTIVE TIN FROM IRRADIATED INTERMETALLIC Ti-Sb TARGETS
    Publication number: 20100064853
    Abstract: The invention provides a method of chemical recovery of no-carrier-added radioactive tin (NCA radiotin) from intermetallide TiSb irradiated with accelerated charged particles. An irradiated sample of TiSb can be dissolved in acidic solutions. Antimony can be removed from the solution by extraction with dibutyl ether. Titanium in the form of peroxide can be separated from tin using chromatography on strong anion-exchange resin. In another embodiment NCA radiotin can be separated from iodide solution containing titanium by extraction with benzene, toluene or chloroform. NCA radiotin can be finally purified from the remaining antimony and other impurities using chromatography on silica gel. NCA tin-117m can be obtained from this process. NCA tin-117m can be used for labeling organic compounds and biological objects to be applied in medicine for imaging and therapy of various diseases.
    Type: Application
    Filed: April 16, 2009
    Publication date: March 18, 2010
    Inventors: Elena V. Lapshina, Boris L. Zhuikov, Suresh C. Srivastava, Stanislav V. Ermolaev, Natalia R. Togaeva