Patents Assigned to Kalyx Biosciences, Inc.
  • Polynucleotide probe and kit for amplifying signal detection in hybridization assays
    Patent number: 6306657
    Abstract: The present invention provides a method for simplifying and significantly enhancing the sensitivity of nucleic acid hybridization assays. A method is described whereby a single-stranded primary nucleic acid sequence that includes a region of sequences complementary to a single-stranded target nucleic acid sequence is hybridized to the target molecule. Stability of the double-stranded complex thereby formed can be enhanced by using RNA as the probe if DNA is the target or DNA as the probe if RNA is the target. The probe-target complex is subsequently immunocaptured for detection. After washing away extraneous material, a secondary nucleic acid sequence containing many repeating sequence units is hybridized to the probe component of the immobilized probe-target complex. Detection occurs following hybridization of many labelled nucleic acid sequence probes to each of the repeating sequence units of a nucleic acid amplification probe.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: October 23, 2001
    Assignee: Kalyx Biosciences, Inc.
    Inventors: Sithian Pandian, Eng Jom Aw, David I. Smith
  • Device and method of use for detection of bacterial lipopolysaccharides
    Patent number: 5888754
    Abstract: This invention relates to a device comprising a hydrophobic solid support coated with a chemical that can capture bacterial lipopolysaccharides (LPS). This invention also relates to the use of such a device in an immunoassay for the detection of microorganisms. This invention also relates to the incorporation of such a device into a diagnostic kit.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: March 30, 1999
    Assignee: Kalyx Biosciences Inc.
    Inventors: Sithian Pandian, Eng Jom Aw, David I. Smith
  • Method of amplification for increasing the sensitivity of detecting nucleic acid-probe target hybrids
    Patent number: 5627030
    Abstract: The present invention provides a method for simplifying and significantly enhancing the sensitivity of nucleic acid hybridization assays. A method is described whereby a single-stranded primary nucleic acid sequence that includes a region of sequences complementary to a single-stranded target nucleic acid sequence is hybridized to the target molecule. Stability of the double-stranded complex thereby formed can be enhanced by using RNA as the probe if DNA is the target or DNA as the probe if RNA is the target. The probe-target complex is subsequently immunocaptured for detection. After washing away extraneous material, a secondary nucleic acid sequence containing many repeating sequence units is hybridized to the probe component of the immobilized probe-target complex. Detection occurs following hybridization of many labelled nucleic acid sequence probes to each of the repeating sequence units of a nucleic acid amplification probe.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: May 6, 1997
    Assignee: Kalyx Biosciences Inc.
    Inventors: Sithian Pandian, Eng J. Aw, David I. Smith