Patents by Inventor Charles Cao

Charles Cao 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).

  • Patent number: 11939086
    Abstract: A fuel tank comprises an interior wall, a sump, and a baffle that comprises a center fitting, a full-length containment petal, a partial-length containment petal, a dump tube. The full-length containment petal comprises a full-length side edge, extending radially outward from the center fitting. The partial-length containment petal comprises a partial-length side edge, extending radially outward from the center fitting. The dump tube is connected to the sump. The full-length side edge of the full-length containment petal is longer than the partial-length side edge of the partial-length containment petal. All of the partial-length side edge of the partial-length containment petal is attached to a linear portion of the full-length side edge of the full-length containment petal.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: March 26, 2024
    Assignee: The Boeing Company
    Inventors: Jonathan David Embler, Tin Anh Luu, Morgan Ashley Lewis, John Matthew Nichols, Keith Charles Kreutztrager, Chinh Manh Cao, Jonathan Edward Toomey, Martin Edward Lozano, Alfredo Lopez
  • Patent number: 11273433
    Abstract: The disclosure relates to a single-atom-based catalyst system with total-length control of single-atom catalytic sites. The single-atom-based catalyst system comprises at least one catalyst structure comprising a first assembly of a plurality of single-atom-catalyst superparticles. The single-atom-catalyst superparticles comprise a second assembly of a plurality of single-atom-catalyst nanoparticles. The single-atom-based catalyst system has controlled porosity and spatial distribution of active single-atom catalysts from the atomic scale to the macroscopic scale. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: March 15, 2022
    Assignee: University of Florida Research Foundation, Inc.
    Inventor: Yunwei Charles Cao
  • Publication number: 20210187489
    Abstract: The disclosure relates to a single-atom-based catalyst system with total-length control of single-atom catalytic sites. The single-atom-based catalyst system comprises at least one catalyst structure comprising a first assembly of a plurality of single-atom-catalyst superparticles. The single-atom-catalyst superparticles comprise a second assembly of a plurality of single-atom-catalyst nanoparticles. The single-atom-based catalyst system has controlled porosity and spatial distribution of active single-atom catalysts from the atomic scale to the macroscopic scale. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 24, 2021
    Inventor: Yunwei Charles CAO
  • Publication number: 20210139873
    Abstract: Disclosed herein are improved nanozymes for targeting RNA. The disclosed nanozymes are synthesized using recombinant RNase A with site-specific cysteine-substituted mutations that can be covalently functionalized with a length-tunable multi-thiol tether and then loaded onto gold particles through multiple gold-sulfur bonds. This new RNase A loading mechanism is site specific, and it allows high-density loading of alkylthiol modified DNA oligonucleotides. The disclosed nanozymes can also include additional capturer strands and/or involve DNA-recombinant-RNase-A unibodies to further increase the nanozyme's enzymatic activity and target selectivity. Also disclosed are functional on-off switchable nanozymes to control nanozyme activity. In some embodiments, the disclosed nanozyme are core-free hollow forms.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Inventors: Yunwei Charles Cao, Tian Jiang
  • Patent number: 10968474
    Abstract: Described herein are fluid-manipulation-based devices and methods of use. Fluid manipulations according to devices and methods as described herein can be configured to perform assays on biological samples. Devices and methods as described herein can manipulate and analyze nanoliter volumes of fluid, microliter volumes of fluid, milliliter volumes of fluid, or greater. Embodiments of the present disclosure can enable random biological assays and rapid, simultaneous analysis of multiple biological samples.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: April 6, 2021
    Assignee: University of Florida Research Foundation Inc.
    Inventor: Yunwei Charles Cao
  • Patent number: 10538757
    Abstract: Embodiments of the present disclosure provide for nanozymes that can include a therapeutic agent, methods of making nanozymes, methods of using nanozymes, and the like. In some embodiments, the nanozymes can include a shell that can surround a hollow core that can be configured to receive a compound and the shell can include a recognition moiety and an enzyme.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: January 21, 2020
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Yunwei Charles Cao, Chen Liu
  • Publication number: 20190323069
    Abstract: Described herein are fluid-manipulation-based devices. Fluid manipulations as described herein can be configured to perform assays on biological samples. In an embodiment, the device includes a reaction chamber, which can include an integrated sample isolation module, a cell lysis module, a biological target purification module, and an assay mixing module, which can include a microbead with a capture molecule coupled thereto and a nanoparticle having a probe molecule coupled thereto via a label, which can be a spectroscopic label. In an embodiment, the capture and probe molecules can be configured to be coupled together via a biological target to form a biological molecule bead complex. Devices and methods as described herein can manipulate and analyze nanoliter volumes of fluid, microliter volumes of fluid, milliliter volumes of fluid, or greater. Embodiments of the present disclosure can enable random biological assays and rapid, simultaneous analysis of multiple biological samples.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 24, 2019
    Inventor: Yunwei Charles Cao
  • Patent number: 10301667
    Abstract: Described herein are fluid-manipulation-based devices. Fluid manipulations as described herein can be configured to perform assays on biological samples. In an embodiment, the device includes a reaction chamber, which can includes an integrated sample isolation module, a cell lysis module, a biological target purification module, and an assay mixing module, which can include a microbead with a capture molecule coupled thereto and a nanoparticle having a probe molecule coupled thereto via a label, which can be a spectroscopic label. In an embodiment, the capture and probe molecules can be configured to be coupled together via a biological target to form a biological molecule bead complex. Devices and methods as described herein can manipulate and analyze nanoliter volumes of fluid, microliter volumes of fluid, milliliter volumes of fluid, or greater. Embodiments of the present disclosure can enable random biological assays and rapid, simultaneous analysis of multiple biological samples.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 28, 2019
    Assignee: University of Florida Research Foundation, Inc.
    Inventor: Yunwei Charles Cao
  • Patent number: 10081542
    Abstract: Embodiments of the present disclosure provides for nanozymes, methods of making nanozymes, methods of using nanozymes, and the like.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: September 25, 2018
    Assignee: University of Florida Research Foundation, lnc.
    Inventors: Yunwei Charles Cao, Chen Liu, Hongyan Liu, Zhongliang Wang, Soon Hye Yang
  • Publication number: 20170138941
    Abstract: Described herein are fluid-manipulation-based devices. Fluid manipulations as described herein can be configured to perform assays on biological samples. In an embodiment, the device includes a reaction chamber, which can includes an integrated sample isolation module, a cell lysis module, a biological target purification module, and an assay mixing module, which can include a microbead with a capture molecule coupled thereto and a nanoparticle having a probe molecule coupled thereto via a label, which can be a spectroscopic label. In an embodiment, the capture and probe molecules can be configured to be coupled together via a biological target to form a biological molecule bead complex. Devices and methods as described herein can manipulate and analyze nanoliter volumes of fluid, microliter volumes of fluid, milliliter volumes of fluid, or greater. Embodiments of the present disclosure can enable random biological assays and rapid, simultaneous analysis of multiple biological samples.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 18, 2017
    Inventor: Yunwei Charles Cao
  • Publication number: 20160351387
    Abstract: A doping method using a three-step synthesis to make high-quality doped nanocrystals is provided. The first step includes synthesizing starting host particles. The second step includes dopant growth on the starting host particles. The third step includes final shell growth. In one embodiment, this method can be used to form Mn-doped CdS/ZnS core/shell nanocrystals. The Mn dopant can be formed inside the CdS core, at the core/shell interface, and/or in the ZnS shell. The subject method allows precisely controlling the impurity radial position and doping level in the nanocrystals.
    Type: Application
    Filed: July 1, 2016
    Publication date: December 1, 2016
    Inventor: Y. Charles Cao
  • Patent number: 9406759
    Abstract: A doping method using a three-step synthesis to make high-quality doped nanocrystals is provided. The first step includes synthesizing starting host particles. The second step includes dopant growth on the starting host particles. The third step includes final shell growth. In one embodiment, this method can be used to form Mn-doped CdS/ZnS core/shell nanocrystals. The Mn dopant can be formed inside the CdS core, at the core/shell interface, and/or in the ZnS shell. The subject method allows precisely controlling the impurity radial position and doping level in the nanocrystals.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: August 2, 2016
    Assignee: University of Florida Research Foundation, Inc.
    Inventor: Y. Charles Cao
  • Publication number: 20160215279
    Abstract: Embodiments of the present disclosure provide for nanozymes that can include a therapeutic agent, methods of making nanozymes, methods of using nanozymes, and the like.
    Type: Application
    Filed: February 12, 2016
    Publication date: July 28, 2016
    Inventors: Yunwei Charles Cao, Chen Liu
  • Patent number: 9291758
    Abstract: Nanorods assemblies that have lengths in excess of 50 microns to meters are formed from contacting rice-shaped colloidal superparticles that are aligned along the long axis of the colloidal superparticles. The rice-shaped colloidal superparticles are formed from a multiplicity of nanorods with a high degree of association that is end to end to form colloidal superparticles that are in excess of three microns in length and have a length to diameter ratio of about three or more. Methods of preparing the rice-shaped colloidal superparticles employ mixing with an additional ligand to the nanorods to bias the self assembly of the nanorods by solvophobic interactions. Methods of preparing the nanorods assemblies include the infusion of the rice-shaped colloidal superparticles into microchannels patterned on a substrate, wherein the rice-shaped colloidal superparticles' long axes align in the microchannels.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: March 22, 2016
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Yunwei Charles Cao, Tie Wang, Xirui Wang
  • Patent number: 9174186
    Abstract: The present invention concerns size- and shape-controlled, colloidal superparticles (SPs) and methods for synthesizing the same. Ligand-functionalized nanoparticles such as nonpolar-solvent-dispersible nanoparticles, are used, and the solvophobic interactions can be controlled. Advantageously, supercrystalline SPs having a superlattice structure, such as a face-centered cubic structure, can be produced. Further, the methods of the invention can provide SPs that self-assemble and are monodisperse. The SPs can be doped with organic dyes and further assembled into more complex structures.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: November 3, 2015
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Y. Charles Cao, Jiaqi Zhuang, Huimeng Wu, Yongan Yang
  • Patent number: 8889429
    Abstract: A dual-interaction ligand for rendering otherwise hydrophobic nanoparticles water soluble or suspendable has a hydrophilic base with a plurality of hydrophilic segments extending from a core of the base, where at least one segment or the core contains a hydrophobic groups capable of forming van der Waal interaction between hydrophobic groups of the dual-interaction ligand and other hydrophobic ligands, and at least one complexing functionality to complex a metal atom or ion of a nanoparticle. The dual-interaction ligands can be combined with hydrophobic nanoparticles, where the dual-interaction ligands can displace some or all of the hydrophobic ligands of the hydrophobic nanoparticles, to form a nanoparticle-dual interaction ligand complex that can be dissolved or dispersed readily in an aqueous solution. The dual interaction ligand can be functionalized to attach an antibody or other biomolecules such that the nanoparticle dual-interaction ligands complexes can contain biomolecules.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: November 18, 2014
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Y. Charles Cao, Huimeng Wu
  • Publication number: 20140319563
    Abstract: Nanorods assemblies that have lengths in excess of 50 microns to meters are formed from contacting rice-shaped colloidal superparticles that are aligned along the long axis of the colloidal superparticles. The rice-shaped colloidal superparticles are formed from a multiplicity of nanorods with a high degree of association that is end to end to form colloidal superparticles that are in excess of three microns in length and have a length to diameter ratio of about three or more. Methods of preparing the rice-shaped colloidal superparticles employ mixing with an additional ligand to the nanorods to bias the self assembly of the nanorods by solvophobic interactions. Methods of preparing the nanorods assemblies include the infusion of the rice-shaped colloidal superparticles into microchannels patterned on a substrate, wherein the rice-shaped colloidal superparticles' long axes align in the microchannels.
    Type: Application
    Filed: December 16, 2013
    Publication date: October 30, 2014
    Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Yunwei Charles Cao, Tie Wang, Xirui Wang
  • Patent number: 8410455
    Abstract: An embodiment of the invention is a device for photo-stimulated color emission having at least one plurally doped semiconducting nanoparticle comprising at least one semiconducting material and a plurality of at least one dopant coupled with an irradiation source such that the plurally doped semiconducting nanoparticle emit electromagnetic radiation at two or more wavelengths where the intensities of the emissions depend on the intensity of the irradiation. In an embodiment of the invention, the plurally doped semiconducting nanoparticle can be a doped core/shell nanoparticle where the plurality of dopants can reside in exclusively the core, exclusively the shell, or in both the core and shell.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: April 2, 2013
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Y. Charles Cao, Ou Chen, Daniel Edward Shelby, Yongan Yang, Jiaqi Zhuang, Nicolo Omenetto
  • Publication number: 20130034532
    Abstract: Embodiments of the present disclosure provides for nanozymes, methods of making nanozymes, methods of using nanozymes, and the like.
    Type: Application
    Filed: April 19, 2011
    Publication date: February 7, 2013
    Inventors: Yunwei Charles Cao, Chen Liu, Hongyan Liu, Zhongliang Wang, Soon Hye Yang
  • Patent number: 8137457
    Abstract: A method of forming monodisperse metal chalcogenide nanocrystals without precursor injection, comprising the steps of: combining a metal source, a chalcogen oxide or a chalcogen oxide equivalent, and a fluid comprising a reducing agent in a reaction pot at a first temperature to form a liquid comprising assembly; increasing the temperature of the assembly to a sufficient-temperature to initiate nucleation to form a plurality of metal chalcogenide nanocrystals; and growing the plurality of metal chalcogenide nanocrystals without injection of either the metal source or the chalcogen oxide at a temperature equal to or greater than the sufficient-temperature, wherein crystal growth proceeds substantially without nucleation to form a plurality of monodisperse metal chalcogenide nanocrystals. Well controlled monodispersed CdSe nanocrystals of various sizes can be prepared by choice of the metal source and solvent system.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 20, 2012
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Yunwei Charles Cao, Ou Chen