Patents by Inventor Rongchao Jin

Rongchao Jin 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).

  • Silver stain removal by chemical etching and sonication
    Patent number: 6726847
    Abstract: This invention relates to methods for regenerating spent DNA detection chips for further use. Specifically, this invention relates to a method for removal of silver from used DNA detection chips that employ gold nanoparticle-oligonucleotide conjugate probes and that use silver staining for signal amplification.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: April 27, 2004
    Assignee: Northwestern University
    Inventors: Chad A. Mirkin, So-Jung Park, Rongchao Jin
  • Non-alloying core shell nanoparticles
    Publication number: 20040038255
    Abstract: The present invention relates composite core/shell nanoparticles and a two-step method for their preparation. The present invention further relates to biomolecule-core/shell nanoparticle conjugates and methods for their preparation. The invention also relates to methods of detection of biomolecules comprising the biomolecule or specific binding substance-core/shell nanoparticle conjugates.
    Type: Application
    Filed: March 26, 2003
    Publication date: February 26, 2004
    Applicant: Northwestern University
    Inventors: Chad A. Mirkin, Yun-Wei Cao, Rongchao Jin
  • Nanoparticle probs with Raman spectrocopic fingerprints for analyte detection
    Publication number: 20030211488
    Abstract: The invention encompasses reagents comprising particles with at least one Raman dye and a specific binding members bound thereto and methods of using such reagents. The invention also encompases reagents of a specific binding member and two or more different Raman dyes and methods for using such reagents.
    Type: Application
    Filed: June 14, 2002
    Publication date: November 13, 2003
    Applicant: Northwestern University
    Inventors: Chad A. Mirkin, Yunwei Cao, Rongchao Jin
  • Nanoprisms and method of making them
    Publication number: 20030136223
    Abstract: The invention is a novel photo-induced method for converting large quantities of silver nanospheres into nanoprisms, the nanoprisms formed by this method and applications in which the nanoprisms are useful. Significantly, this light driven process results in a colloid with a unique set of optical properties that directly relate to the nanoprism shape of the particles. Theoretical calculations coupled with experimental observations allow for the assignment of the nanoprism plasmon bands and the first identification of two distinct quadrupole plasmon resonances for a nanoparticle. Finally, unlike the spherical particles from which they derive and which Rayleigh light scatter in the blue, these nanoprisms exhibit scattering in the red, permitting multicolor diagnostic labels based not only on nanoparticle composition and size but also on shape.
    Type: Application
    Filed: September 26, 2002
    Publication date: July 24, 2003
    Inventors: Rongchao Jin, Yunwei Cao, Chad A. Mirkin
  • Non-alloying core shell nanoparticles
    Publication number: 20030129608
    Abstract: The present invention relates composite core/shell nanoparticles and a two-step method for their preparation. The present invention further relates to biomolecule-core/shell nanoparticle conjugates and methods for their preparation. The invention also relates to methods of detection of biomolecules comprising the biomolecule-core/shell nanoparticle conjugates.
    Type: Application
    Filed: May 22, 2002
    Publication date: July 10, 2003
    Inventors: Chad A. Mirkin, Yun-Wei Cao, Rongchao Jin
  • Non-alloying core shell nanoparticles
    Publication number: 20020177143
    Abstract: The present invention relates composite core/shell nanoparticles and a two-step method for their preparation. The present invention further relates to biomolecule-core/shell nanoparticle conjugates and methods for their preparation. The invention also relates to methods of detection of biomolecules comprising the biomolecule or specific binding substance-core/shell nanoparticle conjugates.
    Type: Application
    Filed: December 28, 2001
    Publication date: November 28, 2002
    Inventors: Chad A. Mirkin, Yun-Wei Cao, Rongchao Jin
  • Silver stain removal by chemical etching and sonication
    Publication number: 20020125214
    Abstract: This invention relates to methods for regenerating spent DNA detection chips for further use. Specifically, this invention relates to a method for removal of silver from used DNA detection chips that employ gold nanoparticle-oligonucleotide conjugate probes and that use silver staining for signal amplification.
    Type: Application
    Filed: November 30, 2001
    Publication date: September 12, 2002
    Inventors: Chad A. Mirkin, So-Jung Park, Rongchao Jin