Patents by Inventor W. Russ Algar

W. Russ Algar 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).

  • Publication number: 20200017905
    Abstract: Time-resolved nucleic acids include a long-lifetime FRET donor with an emission lifetime of at least one millisecond (such as a terbium complex), configured as a donor in a first FRET process, and at least one fluorescent dye with an emission lifetime of less than 100 nanoseconds configured as an acceptor in the FRET process. They can be configured as photonic wires, hybridization probes or beacons, and/or systems for computing logical operations.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Inventors: Igor L. Medintz, Mario Ancona, W. Russ Algar, Melissa M. Massey
  • Publication number: 20200010877
    Abstract: Time-resolved nucleic acids include a long-lifetime FRET donor with an emission lifetime of at least one millisecond (such as a terbium complex), configured as a donor in a first FRET process, and at least one fluorescent dye with an emission lifetime of less than 100 nanoseconds configured as an acceptor in the FRET process. They can be configured as photonic wires, hybridization probes or beacons, and/or systems for computing logical operations.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 9, 2020
    Inventors: Igor L. Medintz, Mario Ancona, W. Russ Algar, Melissa M. Massey
  • Patent number: 10465233
    Abstract: Time-resolved nucleic acids include a long-lifetime FRET donor with an emission lifetime of at least one millisecond (such as a terbium complex), configured as a donor in a first FRET process, and at least one fluorescent dye with an emission lifetime of less than 100 nanoseconds configured as an acceptor in the FRET process. They can be configured as photonic wires, hybridization probes or beacons, and/or systems for computing logical operations.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: November 5, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Igor L. Medintz, Mario Ancona, W. Russ Algar, Melissa M. Massey
  • Publication number: 20170275677
    Abstract: Time-resolved nucleic acids include a long-lifetime FRET donor with an emission lifetime of at least one millisecond (such as a terbium complex), configured as a donor in a first FRET process, and at least one fluorescent dye with an emission lifetime of less than 100 nanoseconds configured as an acceptor in the FRET process. They can be configured as photonic wires, hybridization probes or beacons, and/or systems for computing logical operations.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 28, 2017
    Inventors: Igor L. Medintz, Mario Ancona, W. Russ Algar, Melissa M. Massey
  • Patent number: 9752986
    Abstract: Described herein is a time-gated, two-step FRET relay effective to provide temporal transference of a prompt FRET pathway, or provide spectro-temporal encoding analytical signals and other information. A FRET relay assembly includes a long lifetime FRET donor (for example, a lanthanide complex), a semiconductor quantum dot (QD) configured as an intermediate acceptor/donor in FRET, and a fluorescent dye configured as a terminal FRET acceptor, wherein the long lifetime FRET donor has an excited state lifetime of at least one microsecond and the QD and fluorescent dye each have excited state lifetimes of less than 100 nanoseconds.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: September 5, 2017
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: W. Russ Algar, Niko Hildebrandt, Alan L. Huston, Igor L. Medintz
  • Patent number: 9120967
    Abstract: Described herein is a Förster (or fluorescence) resonance energy transfer (FRET) configuration with three energy transfer pathways between three luminescent components, where two of the energy transfer steps occur in sequence as a relay, and the first step of the relay is in competition with a third energy transfer process (energy transfer from the donor to the intermediary is in competition with energy transfer from the donor directly to the terminal acceptor).
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: September 1, 2015
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Igor L. Medintz, W. Russ Algar
  • Patent number: 8921140
    Abstract: Quantum dots are modified with varying amounts of (a) a redox-active moiety effective to perform charge transfer quenching, and (b) a fluorescent dye effective to perform fluorescence resonance energy transfer (FRET), so that the modified quantum dots have a plurality of photophysical properties. The FRET and charge transfer pathways operate independently, providing for two channels of control for varying luminescence of quantum dots having the same innate properties.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: December 30, 2014
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Igor L. Medintz, W. Russ Algar, Michael H. Stewart, Kimihiro Susumu
  • Publication number: 20140264262
    Abstract: Described herein is a Förster (or fluorescence) resonance energy transfer (FRET) configuration with three energy transfer pathways between three luminescent components, where two of the energy transfer steps occur in sequence as a relay, and the first step of the relay is in competition with a third energy transfer process (energy transfer from the donor to the intermediary is in competition with energy transfer from the donor directly to the terminal acceptor).
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Igor L. Medintz, W. Russ Algar
  • Publication number: 20140256073
    Abstract: Quantum dots are modified with varying amounts of (a) a redox-active moiety effective to perform charge transfer quenching, and (b) a fluorescent dye effective to perform fluorescence resonance energy transfer (FRET), so that the modified quantum dots have a plurality of photophysical properties. The FRET and charge transfer pathways operate independently, providing for two channels of control for varying luminescence of quantum dots having the same innate properties.
    Type: Application
    Filed: February 6, 2014
    Publication date: September 11, 2014
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Igor L. Medintz, W. Russ Algar, Michael H. Stewart, Kimihiro Susumu
  • Patent number: 8680506
    Abstract: Quantum dots are modified with varying amounts of (a) a redox-active moiety effective to perform charge transfer quenching, and (b) a fluorescent dye effective to perform fluorescence resonance energy transfer (FRET), so that the modified quantum dots have a plurality of photophysical properties. The FRET and charge transfer pathways operate independently, providing for two channels of control for varying luminescence of quantum dots having the same innate properties.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: March 25, 2014
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Igor L. Medintz, W. Russ Algar, Michael H. Stewart, Kimihiro Susumu
  • Publication number: 20130309671
    Abstract: Described herein is a time-gated, two-step FRET relay effective to provide temporal transference of a prompt FRET pathway, or provide spectro-temporal encoding analytical signals and other information. A FRET relay assembly includes a long lifetime FRET donor (for example, a lanthanide complex), a semiconductor quantum dot (QD) configured as an intermediate acceptor/donor in FRET, and a fluorescent dye configured as a terminal FRET acceptor, wherein the long lifetime FRET donor has an excited state lifetime of at least one microsecond and the QD and fluorescent dye each have excited state lifetimes of less than 100 nanoseconds.
    Type: Application
    Filed: June 6, 2013
    Publication date: November 21, 2013
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: W. Russ Algar, Niko Hildebrandt, Alan L. Huston, Igor L. Medintz
  • Patent number: 8476083
    Abstract: Described herein is a time-gated, two-step FRET relay effective to provide temporal transference of a prompt FRET pathway, or provide spectro-temporal encoding analytical signals and other information. A FRET relay assembly includes a long lifetime FRET donor (for example, a lanthanide complex), a semiconductor quantum dot (QD) configured as an intermediate acceptor/donor in FRET, and a fluorescent dye configured as a terminal FRET acceptor, wherein the long lifetime FRET donor has an excited state lifetime of at least one microsecond and the QD and fluorescent dye each have excited state lifetimes of less than 100 nanoseconds.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: July 2, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: W. Russ Algar, Niko Hildebrandt, Alan L Huston, Igor L. Medintz
  • Publication number: 20120248409
    Abstract: Quantum dots are modified with varying amounts of (a) a redox-active moiety effective to perform charge transfer quenching, and (b) a fluorescent dye effective to perform fluorescence resonance energy transfer (FRET), so that the modified quantum dots have a plurality of photophysical properties. The FRET and charge transfer pathways operate independently, providing for two channels of control for varying luminescence of quantum dots having the same innate properties.
    Type: Application
    Filed: April 4, 2012
    Publication date: October 4, 2012
    Applicant: The Government of the United of America, as represented by the Secretary of the Navy
    Inventors: Igor L. Medintz, W. Russ Algar, Michael H. Stewart, Kimihiro Susumu