Patents Assigned to SRU Biosystems, LLC
  • Publication number: 20100231907
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Application
    Filed: May 18, 2010
    Publication date: September 16, 2010
    Applicant: SRU BIOSYSTEMS, LLC
    Inventors: Homer Pien, William C. Karl, Derek Puff, Peter Li, Brian Cunningham
  • Publication number: 20080052006
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Application
    Filed: May 15, 2007
    Publication date: February 28, 2008
    Applicant: SRU BIOSYSTEMS, LLC
    Inventors: Homer Pien, William Karl, Derek Puff, Peter Li, Brian Cunningham
  • Publication number: 20050214803
    Abstract: A method for providing amine functional groups on a surface for binding proteins, peptides, DNAs, cells, small molecules, and other chemical or biological molecules that are of interests in the areas of proteomic, genomic, pharmaceutical, drug discovery, and diagnostic studies.
    Type: Application
    Filed: November 8, 2004
    Publication date: September 29, 2005
    Applicant: SRU BIOSYSTEMS, LLC
    Inventor: Guo Wang
  • Publication number: 20040132214
    Abstract: The instant invention provides compositions and methods for determining cell interactions that are faster than conventional methods and that require the use of fewer reagents than conventional methods.
    Type: Application
    Filed: September 22, 2003
    Publication date: July 8, 2004
    Applicant: SRU Biosystems, LLC
    Inventors: Bo Lin, Brian Cunningham, Peter Li
  • Publication number: 20030113766
    Abstract: Amine functionalized colorimetric resonant biosensor for binding proteins, peptides, DNAs, cells, small molecules, and other chemical or biological molecules that are of interests in the areas of proteomic, genomic, pharmaceutical, drug discovery, and diagnostic studies. The invention relates to a coating process that provides a high density of active amine binding sites on the grating surface of the colorimetric resonant biosensor. The method uses chemical reagents that do not alter or degrade a plastic biosensor structure. The invention further provides for test methods that verify the presence of amine moieties on the activated surface on the colorimetric resonant biosensor.
    Type: Application
    Filed: August 26, 2002
    Publication date: June 19, 2003
    Applicant: SRU BIOSYSTEMS, LLC
    Inventors: Jane W. Pepper, Jean Qiu
  • Publication number: 20030092075
    Abstract: Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters. Specifically, the invention herein provides a robust and reproducible method for coating sensor surfaces with aldehyde functional groups as well as methods for testing the efficiency and completeness of the coating process.
    Type: Application
    Filed: September 3, 2002
    Publication date: May 15, 2003
    Applicant: SRU Biosystems, LLC
    Inventor: Jane Pepper
  • Publication number: 20030077660
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Application
    Filed: September 25, 2002
    Publication date: April 24, 2003
    Applicant: SRU BIOSYSTEMS, LLC
    Inventors: Homer Pien, William C. Karl, Derek Puff, Peter Li, Brian Cunningham
  • Publication number: 20030068657
    Abstract: Methods are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also relates to optical devices.
    Type: Application
    Filed: September 9, 2002
    Publication date: April 10, 2003
    Applicant: SRU Biosystems LLC
    Inventors: Bo Lin, Jane Pepper, Brian T. Cunningham, John Gerstenmaier, Peter Li, Jean Qiu, Homer Pien
  • Publication number: 20030059855
    Abstract: Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An instrument system for detecting a biochemical interaction on a biosensor. The system includes an array of detection locations comprises a light source for generating collimated white light. A beam splitter directs the collimated white light towards a surface of a sensor corresponding to the detector locations. A detection system includes an imaging spectrometer receiving the reflected light and generating an image of the reflected light.
    Type: Application
    Filed: June 26, 2002
    Publication date: March 27, 2003
    Applicant: SRU Biosystems, LLC
    Inventors: Brian T. Cunningham, Peter Y. Li
  • Publication number: 20030032039
    Abstract: Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An apparatus for detecting biochemical interactions occurring on the surface of a biosensor includes a light source. A first optical fiber is coupled to the light source and illuminates the biosensor. A second optical fiber detects a wavelength reflected from the biosensor. A spectrometer determines spectra of a reflected signal from the biosensor.
    Type: Application
    Filed: June 26, 2002
    Publication date: February 13, 2003
    Applicant: SRU Biosystems, LLC
    Inventors: Brian T. Cunningham, Peter Y. Li, Frank DeFilippi
  • Publication number: 20030027328
    Abstract: Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters.
    Type: Application
    Filed: January 28, 2002
    Publication date: February 6, 2003
    Applicant: SRU Biosystems, LLC
    Inventors: Brian T. Cunningham, Jane Pepper, Bo Lin, Peter Li, Jean Qiu, Homer Pien
  • Publication number: 20030026891
    Abstract: Methods of producing liquid handling biosensor devices are provided. The liquid handling biosensor devices allow detection of biomolecular interactions in liquid. The use of labels is not required and the methods can be performed in a high-throughput manner.
    Type: Application
    Filed: July 23, 2002
    Publication date: February 6, 2003
    Applicant: SRU Biosystems, LLC
    Inventors: Jean Qiu, Peter Li, Brian Cunningham
  • Publication number: 20030027327
    Abstract: Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters.
    Type: Application
    Filed: January 28, 2002
    Publication date: February 6, 2003
    Applicant: SRU Biosystems, LLC
    Inventors: Brian T. Cunningham, Jane Pepper, Bo Lin, Peter Li, Homer Pien, Jean Qiu
  • Publication number: 20030017581
    Abstract: A machine and process for a pattern, such as a submicron grating pattern onto a substrate.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 23, 2003
    Applicant: SRU Biosystems, LLC
    Inventors: Peter Li, Jean Qiu, Alex Borsody
  • Publication number: 20030017580
    Abstract: The invention provides a methods for fabricating colorimetric resonant reflection biosensors.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 23, 2003
    Applicant: SRU Biosystems, LLC
    Inventors: Brian T. Cunningham, Jean Qiu
  • Publication number: 20020127565
    Abstract: Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters.
    Type: Application
    Filed: August 15, 2001
    Publication date: September 12, 2002
    Applicant: SRU Biosystems, LLC
    Inventors: Brian Cunningham, Jane Pepper, Bo Lin, Peter Li, Homer Pien