Patents by Inventor Guillermo C. Bazan

Guillermo C. Bazan 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: 20220235067
    Abstract: A composition of matter including a donor including a dithiophene unit combined with a non-fullerene acceptor. Further disclosed is a device comprising an active region including the composition of matter. Example devices include a solar cell or a photodetector.
    Type: Application
    Filed: June 26, 2020
    Publication date: July 28, 2022
    Applicant: The Regents of the University of California
    Inventors: Guillermo C. Bazan, Jaewon Lee, Seyeong Song, Ziyue Zhu, Thuc-Quyen Nguyen, Seo-Jin Ko
  • Publication number: 20220223797
    Abstract: Small organic molecule chromophores containing a benzo[c][1,2,5]thiadiazole with an electron-withdrawing substituent W in the 5-position (5BTH), benzo[c][1,2,5]oxadiazole with an electron-withdrawing substituent W in the 5-position (5BO), 2H-benzo[d][1,2,3]triazole (5BTR) with an electron-withdrawing substituent W in the 5-position (5BTR), 5-fluorobenzo[c][1,2,5]thiadiazole (FBTH), 5-fluorobenzo[c][1,2,5]oxadiazole (FBO), or 5-fluoro-2H-benzo[d][1,2,3]triazole (FBTR) core structure are disclosed. Such compounds can be used in organic heterojunction devices, such as organic small molecule solar cells and transistors.
    Type: Application
    Filed: August 25, 2021
    Publication date: July 14, 2022
    Inventors: Guillermo C. BAZAN, Thomas S. VAN DER POLL, Thuc-Quyen NGUYEN, John LOVE
  • Publication number: 20220204531
    Abstract: Disclosed are diboronic acid compounds and diboronic acid compound-based sensors for glucose detection, as well as methods for glucose testing in a sample. The diboronic acid compounds allow for selective detection of glucose in the presence of interference sugars, long-term stability, and ease of preparation. Sensors containing the disclosed diboronic acid compounds allow for selective detection of glucose with improved stability at a low cost.
    Type: Application
    Filed: June 4, 2020
    Publication date: June 30, 2022
    Inventors: Bing Wang, Kuang-Hua Chou, Guillermo C. Bazan, Sumita Pennathur
  • Patent number: 11233207
    Abstract: Organic devices comprising an organic semiconducting acceptor motif coupled to a donor motif. Examples include IOTIC-2F, ITOTIC-2F, COTIC-4F, and SiOTIC-4F as acceptor materials. The acceptor materials have narrow bandgap (1.1 eV-1.3 eV), strong near-IR absorption and high solar cell EQE in near infrared (IR) region. The acceptor materials may also be used as the absorbing/light sensitive region in an IR photodetector.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: January 25, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Martin Seifrid, Guillermo C. Bazan, Jaewon Lee, Thuc-Quyen Nguyen, Benjamin R. Luginbuhl
  • Patent number: 11215612
    Abstract: Light harvesting luminescent multichromophores that are configured upon excitation to transfer energy to, and amplify the emission from, an acceptor signaling chromophore in energy-receiving proximity therewith are provided. Also provided are compositions for labelling a target. The labelling composition may include a donor light harvesting multichromophore and an acceptor signaling chromophore in energy-receiving proximity to the donor light harvesting multichromophore. Also provided is an aqueous composition for labelling a target, including: a donor light harvesting multichromophore; an acceptor signaling chromophore in energy-receiving proximity therewith; and a sensor biomolecule. Methods for using the subject compositions are also provided.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: January 4, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Guillermo C. Bazan, Brent S. Gaylord, Shu Wang, Bin Liu
  • Publication number: 20210147340
    Abstract: Disclosed herein are compounds of formula I, where said compounds displays antibacterial properties. Also disclosed herein is the use of said compounds to treat microbial infection. The compounds of formula I have the following structure: where n, m, p, q, X, R1 to R11 are as defined herein.
    Type: Application
    Filed: April 25, 2019
    Publication date: May 20, 2021
    Inventors: Jamie HINKS, Cheng ZHOU, Guillermo C. BAZAN
  • Patent number: 10948485
    Abstract: Light harvesting luminescent multichromophores that are configured upon excitation to transfer energy to, and amplify the emission from, an acceptor signaling chromophore in energy-receiving proximity therewith are provided. Also provided are compositions for labelling a target. The labelling composition may include a donor light harvesting multichromophore and an acceptor signaling chromophore in energy-receiving proximity to the donor light harvesting multichromophore. Also provided is an aqueous composition for labelling a target, including: a donor light harvesting multichromophore; an acceptor signaling chromophore in energy-receiving proximity therewith; and a sensor biomolecule. Methods for using the subject compositions are also provided.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 16, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Guillermo C. Bazan, Brent S. Gaylord, Shu Wang, Bin Liu
  • Publication number: 20210043845
    Abstract: Small organic molecule chromophores containing a benzo[c][1,2,5]thiadiazole with an electron-withdrawing substituent W in the 5-position (5BTH), benzo[c][1,2,5]oxadiazole with an electron-withdrawing substituent W in the 5-position (5BO), 2H-benzo[d][1,2,3]triazole (5BTR) with an electron-withdrawing substituent W in the 5-position (5BTR), 5-fluorobenzo[c][1,2,5]thiadiazole (FBTH), 5-fluorobenzo[c][1,2,5]oxadiazole (FBO), or 5-fluoro-2H-benzo[d][1,2,3]triazole (FBTR) core structure are disclosed. Such compounds can be used in organic heterojunction devices, such as organic small molecule solar cells and transistors.
    Type: Application
    Filed: March 18, 2020
    Publication date: February 11, 2021
    Inventors: Guillermo C. BAZAN, Thomas S. VAN DER POLL, Thuc-Quyen NGUYEN, John LOVE
  • Patent number: 10892421
    Abstract: Small organic molecule semi-conducting chromophores containing a pyridalthiadiazole, pyridaloxadiazole, or pyridaltriazole core structure are disclosed. Such compounds can be used in organic heterojunction devices, such as organic small molecule solar cells and transistors.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: January 12, 2021
    Assignee: The Regents of the University of California
    Inventors: Gregory C. Welch, Corey V. Hoven, Thuc-Quyen Nguyen, Guillermo C. Bazan
  • Patent number: 10875957
    Abstract: Four conjugated copolymers with a donor/acceptor architecture including 4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4-b?]dithiophene as the donor structural unit and benzo[2,1,3]thiodiazole fragments with varying degrees of fluorination have been synthesized and characterized. It has been shown that the HOMO levels were decreased after the fluorine substitution. The field-effect charge carrier mobility was similar for all polymers with less than an order of magnitude difference between different acceptor units.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: December 29, 2020
    Assignee: The Regents of the University of California
    Inventors: Ming Wang, Guillermo C. Bazan
  • Publication number: 20200328357
    Abstract: Narrow bandgap n-type small molecules are attracting attention in the near-infrared organic optoelectronics field, due to their easy tunable energy band with a molecular design flexibility. However, only a few reports demonstrate narrow bandgap non-fullerene acceptors (NFAs) that perform well in organic solar cells (OSCs), and the corresponding benefits of NFA photodiodes have not been well investigated in organic photodetectors (OPDs). Here, the ultra-narrow bandgap NFAs CO1-4F, CO1-4Cl and o-IO1 were designed and synthesized for the achieved efficient near-infrared organic photodiodes such as solar cells and photodetectors. Designing an asymmetrical CO1-4F by introducing two different ?-bridges including alkylthienyl and alkoxythienyl units ultimately provides an asymmetric A-D?-D-D?-A molecular configuration. This enables a delicate modulation in energy band structure as well as maintains an intense intramolecular charge transfer characteristic of the excited state.
    Type: Application
    Filed: February 14, 2020
    Publication date: October 15, 2020
    Applicant: The Regents of the University of California
    Inventors: Jaewon Lee, Soe-Jin Ko, Jianfei Huang, Martin Seifrid, Hengbin Wang, Thuc-Quyen Nguyen, Guillermo C. Bazan
  • Publication number: 20200284785
    Abstract: Light harvesting luminescent multichromophores that are configured upon excitation to transfer energy to, and amplify the emission from, an acceptor signaling chromophore in energy-receiving proximity therewith are provided. Also provided are compositions for labelling a target. The labelling composition may include a donor light harvesting multichromophore and an acceptor signaling chromophore in energy-receiving proximity to the donor light harvesting multichromophore. Also provided is an aqueous composition for labelling a target, including: a donor light harvesting multichromophore; an acceptor signaling chromophore in energy-receiving proximity therewith; and a sensor biomolecule. Methods for using the subject compositions are also provided.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 10, 2020
    Inventors: Guillermo C. Bazan, Brent S. Gaylord, Shu Wang, Bin Liu
  • Patent number: 10559754
    Abstract: The present disclosure describes additives that attenuate a specific transport channel in ambipolar semiconductors to achieve unipolar characteristics. Carrier selective traps are included in the ambipolar semiconductors and are chosen on the basis of energetic preferences for holes or electrons and the relative positions of the molecular orbital energies of host polymer and the dopants. In one embodiment, a composition of matter useful as a current transport region in an organic semiconductor device comprises a semiconducting polymer; and means for accepting holes (e.g., a hole trapping compound) injected into the current transport region so as to impede conduction of the holes in the semiconducting polymer. This simple solution-processable method can improve the on and off current ratios (ION/IOFF) of OFETs by up to three orders of magnitude. Moreover, the treatment yields tailored blends that can be used to fabricate complementary inverters with excellent gain and low-power characteristics.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: February 11, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Michael J. Ford, Hengbin Wang, Guillermo C. Bazan
  • Publication number: 20190376959
    Abstract: Light harvesting luminescent multichromophores that are configured upon excitation to transfer energy to, and amplify the emission from, an acceptor signaling chromophore in energy-receiving proximity therewith are provided. Also provided are compositions for labelling a target. The labelling composition may include a donor light harvesting multichromophore and an acceptor signaling chromophore in energy-receiving proximity to the donor light harvesting multichromophore. Also provided is an aqueous composition for labelling a target, including: a donor light harvesting multichromophore; an acceptor signaling chromophore in energy-receiving proximity therewith; and a sensor biomolecule. Methods for using the subject compositions are also provided.
    Type: Application
    Filed: July 31, 2019
    Publication date: December 12, 2019
    Inventors: Guillermo C. Bazan, Brent S. Gaylord, Shu Wang, Bin Liu
  • Patent number: 10487173
    Abstract: Four conjugated copolymers with a donor/acceptor architecture including 4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4-b?]dithiophene as the donor structural unit and benzo[2,1,3]thiodiazole fragments with varying degrees of fluorination have been synthesized and characterized. It has been shown that the HOMO levels were decreased after the fluorine substitution. The field-effect charge carrier mobility was similar for all polymers with less than an order of magnitude difference between different acceptor units.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: November 26, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Ming Wang, Guillermo C. Bazan
  • Publication number: 20190348608
    Abstract: Conjugated donor-acceptor copolymers comprising a donor and an acceptor, wherein the acceptor comprises a fluorophenylene. Organic Field Effect Transistors (OFETs) comprising the conjugated donor-acceptor copolymers are also disclosed.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Applicant: The Regents of the University of California
    Inventors: Guillermo C. Bazan, Ming Wang
  • Publication number: 20190338070
    Abstract: Four conjugated copolymers with a donor/acceptor architecture comprising 4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4-b?]dithiophene as the donor structural unit and benzo[2,1,3]thiodiazole fragments with varying degrees of fluorination have been synthesized and characterized. It has been shown that the HOMO levels were decreased after the fluorine substitution. The field-effect charge carrier mobility was similar for all polymers with less than an order of magnitude difference between different acceptor units.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 7, 2019
    Applicant: The Regents of the University of California
    Inventors: Ming Wang, Guillermo C. Bazan
  • Publication number: 20190334094
    Abstract: Small organic molecule chromophores containing a benzo[c][1,2,5]thiadiazole with an electron-withdrawing substituent W in the 5-position (5BTH), benzo[c][1,2,5]oxadiazole with an electron-withdrawing substituent W in the 5-position (5BO), 2H-benzo[d][1,2,3]triazole (5BTR) with an electron-withdrawing substituent W in the 5-position (5BTR), 5-fluorobenzo[c][1,2,5]thiadiazole (FBTH), 5-fluorobenzo[c][1,2,5]oxadiazole (FBO), or 5-fluoro-2H-benzo[d][1,2,3]triazole (FBTR) core structure are disclosed. Such compounds can be used in organic heterojunction devices, such as organic small molecule solar cells and transistors.
    Type: Application
    Filed: November 28, 2018
    Publication date: October 31, 2019
    Inventors: Guillermo C. BAZAN, Thomas S. VAN DER POLL, Thuc-Quyen NGUYEN, John LOVE
  • Patent number: RE47874
    Abstract: Methods, compositions and articles of manufacture for assaying a sample for a target polynucleotide are provided. A sample suspected of containing the target polynucleotide is contacted with a polycationic multichromophore and a sensor polynucleotide complementary to the target polynucleotide. The sensor polynucleotide comprises a signaling chromophore to receive energy from the excited multichromophore and increase emission in the presence of the target polynucleotide. The methods can be used in multiplex form. Kits comprising reagents for performing such methods are also provided.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: February 25, 2020
    Assignee: The Regents of the University of California
    Inventors: Guillermo C. Bazan, Brent S. Gaylord, Shu Wang
  • Patent number: RE48811
    Abstract: Methods compositions and articles of manufacture for assaying a sample for a target polynucleotide are provided. A sample suspected of containing the target polynucleotide is contacted with a polycationic multichromophore and a sensor polynucleotide complementary to the target polynucleotide. The sensor polynucleotide comprises a signaling chromophore to receive energy from the excited multichromophore and increase emission in the presence of the target polynucleotide. The methods can be used in multiplex form. Kits comprising reagents for performing such methods are also provided.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: November 9, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Guillermo C. Bazan, Brent S. Gaylord, Shu Wang