Patents by Inventor Abigail M. Aiken

Abigail M. Aiken 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).

  • Biosensor for metal analysis and speciation
    Patent number: 7169290
    Abstract: A biosensor for metal analysis and speciation is disclosed. The biosensor comprises an electron carrier immobilized to a surface of an electrode and a layer of an immobilized enzyme adjacent to the electrode. The immobilized enzyme comprises an enzyme having biological activity inhibited by a metal to be detected by the biosensor.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: January 30, 2007
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Abigail M. Aiken, Brent M. Peyton, William A. Apel, James N. Petersen
  • Method for chromium analysis and speciation
    Patent number: 6811997
    Abstract: A method of detecting a metal in a sample comprising a plurality of metal is disclosed. The method comprises providing the sample comprising a metal to be detected. The sample is added to a reagent solution comprising an enzyme and a substrate, where the enzyme is inhibited by the metal to be detected. An array of chelating agents is used to eliminate the inhibitory effects of additional metals in the sample. An enzymatic activity in the sample is determined and compared to an enzymatic activity in a control solution to detect the metal to be detected. A method of determining a concentration of the metal in the sample is also disclosed. A method of detecting a valence state of a metal is also disclosed.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: November 2, 2004
    Assignee: Bechtel BWXT Idaho, LLC
    Inventors: Abigail M. Aiken, Brent M. Peyton, William A. Apel, James N. Petersen
  • Method for metal analysis and speciation and biosensor for effecting the method
    Publication number: 20040005651
    Abstract: A method of detecting a metal in a sample comprising a plurality of metal is disclosed. The method comprises providing the sample comprising a metal to be detected. The sample is added to a reagent solution comprising an enzyme and a substrate, where the enzyme is inhibited by the metal to be detected. An array of chelating agents is used to eliminate the inhibitory effects of additional metals in the sample. An enzymatic activity in the sample is determined and compared to an enzymatic activity in a control solution to detect the metal to be detected. A method of determining a concentration of the metal in the sample is also disclosed. A method of detecting a valence state of a metal is also disclosed.
    Type: Application
    Filed: July 2, 2002
    Publication date: January 8, 2004
    Inventors: Abigail M. Aiken, Brent M. Peyton, William A. Apel, James N. Petersen