Patents by Inventor Atanu SENGUPTA

Atanu SENGUPTA 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).

  • Method and apparatus for two-step surface-enhanced raman spectroscopy
    Patent number: 9134247
    Abstract: A SERS method and apparatus employ a sample device having support structure including a first material containing a SER-active metal functionalized with a binding agent having specific capability for binding a designated target analyte. An analyte sample is introduced upon the functionalized SER-active metal; conditions to effect binding of the target analyte to the binding agent are maintained; unbound chemicals, biochemicals, or biologicals are removed; a second SER-active material is introduced to cause it to attach to the bound target analyte; the support structure is irradiated to generate a SER spectrum, with the first and second SER-active materials acting in concert; and the SER spectrum is detected and analyzed to determine the presence and quantity of the target analyte. Alternatively, the second SER-active material may be functionalized with a binding agent, with the procedure being modified accordingly.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: September 15, 2015
    Assignee: REAL-TIME ANALYZERS, INC.
    Inventors: Atanu Sengupta, Frank E. Inscore, Chetan Shende, Michael J. Donahue, Stuart Farquharson
  • Method and apparatus for two-step surface-enhanced raman spectroscopy
    Publication number: 20130157254
    Abstract: A SERS method and apparatus employ a sample device having support structure including a first material containing a SER-active metal functionalized with a binding agent having specific capability for binding a designated target analyte. An analyte sample is introduced upon the functionalized SER-active metal; conditions to effect binding of the target analyte to the binding agent are maintained; unbound chemicals, biochemicals, or biologicals are removed; a second SER-active material is introduced to cause it to attach to the bound target analyte; the support structure is irradiated to generate a SER spectrum, with the first and second SER-active materials acting in concert; and the SER spectrum is detected and analyzed to determine the presence and quantity of the target analyte. Alternatively, the second SER-active material may be functionalized with a binding agent, with the procedure being modified accordingly.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 20, 2013
    Inventors: Atanu SENGUPTA, Frank E. INSCORE, Chetan SHENDE, Michael J. DONAHUE, Stuart FARQUHARSON