Patents by Inventor Yeu-Kuang Hwu

Yeu-Kuang Hwu 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: 11714031
    Abstract: A method for visualizing neurons is provided. The method comprises a staining step and a visualizing step. The staining step comprises following steps: placing a neural tissue sample in an acrolein solution in the dark for fixation; placing the fixed neural tissue sample in a Golgi-Cox solution in the dark; replacing the Golgi-Cox solution; incubating the neural tissue sample placed in the replaced Golgi-Cox solution at a range of 36° C. to 38° C.; gradiently dehydrating the neural tissue sample; and embedding the dehydrated neural tissue sample with Petropoxy 154 resin. The visualizing step comprises: performing data acquisition and image reconstruction on the neural tissue sample using X-ray microscopy.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: August 1, 2023
    Inventor: Yeu-Kuang Hwu
  • Patent number: 11371924
    Abstract: The present disclosure provides a method for imaging a compound contained by a lipid vesicle in water. The method comprises the following steps of: (a) providing an aqueous sample comprising the lipid vesicle which contains the compound, wherein the aqueous sample further comprises ammonium sulphate ((NH4)2SO4); (b) illuminating the aqueous sample with an X-ray free-electron laser (X-FEL); (c) with an image sensor, collecting a plurality of coherent diffraction image patterns of the aqueous sample being illuminated; and (d) reconstructing the coherent diffraction image patterns with a computer such that an image of the lipid vesicle containing the compound is acquired. A method for examining a quality of a chemical drug contained by a liposome in water is also provided.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: June 28, 2022
    Inventor: Yeu-Kuang Hwu
  • Publication number: 20200284705
    Abstract: A method for visualizing neurons is provided. The method comprises a staining step and a visualizing step. The staining step comprises following steps: placing a neural tissue sample in an acrolein solution in the dark for fixation; placing the fixed neural tissue sample in a Golgi-Cox solution in the dark; replacing the Golgi-Cox solution; incubating the neural tissue sample placed in the replaced Golgi-Cox solution at a range of 36° C. to 38° C.; gradiently dehydrating the neural tissue sample; and embedding the dehydrated neural tissue sample with Petropoxy 154 resin. The visualizing step comprises: performing data acquisition and image reconstruction on the neural tissue sample using X-ray microscopy.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Inventor: YEU-KUANG HWU
  • Publication number: 20200209131
    Abstract: The present disclosure provides a method for imaging a compound contained by a lipid vesicle in water. The method comprises the following steps of: (a) providing an aqueous sample comprising the lipid vesicle which contains the compound, wherein the aqueous sample further comprises ammonium sulphate ((NH4)2SO4); (b) illuminating the aqueous sample with an X-ray free-electron laser (X-FEL); (c) with an image sensor, collecting a plurality of coherent diffraction image patterns of the aqueous sample being illuminated; and (d) reconstructing the coherent diffraction image patterns with a computer such that an image of the lipid vesicle containing the compound is acquired. A method for examining a quality of a chemical drug contained by a liposome in water is also provided.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Inventor: Yeu-Kuang HWU
  • Patent number: 10114016
    Abstract: Particles and manufacturing methods thereof are provided. The manufacturing method of the particle includes providing a precursor solution containing a precursor dissolved in a solution, and irradiating the precursor solution with a high energy and high flux radiation beam to convert the precursor to nano-particles. Particles with desired dispersion, shape, and size are manufactured without adding a stabilizer or surfactant to the precursor solution.
    Type: Grant
    Filed: August 22, 2009
    Date of Patent: October 30, 2018
    Inventors: Yeu-Kuang Hwu, Chang-Hai Wang, Chi-Jen Liu, Cheng-Liang Wang, Chi-Hsiung Chen, Chung-Shi Yang, Hong-Ming Lin, Jung-Ho Je, Giorgio Margartondo
  • Publication number: 20180306688
    Abstract: A method for staining a neural tissue sample is provided. The method comprises following steps: placing a neural tissue sample in an acrolein solution in the dark for fixation; placing the fixed neural tissue sample in a Golgi-Cox solution in the dark; replacing the Golgi-Cox solution; incubating the neural tissue sample placed in the replaced Golgi-Cox solution at a range of 36° C. to 38° C.; gradiently dehydrating the neural tissue sample; and embedding the dehydrated neural tissue sample with Petropoxy 154 resin. A method for visualizing neurons is also provided. The method comprises: staining a neural tissue sample using the above mentioned method to obtain the embedded neural tissue sample; and performing data acquisition and image reconstruction on the neural tissue sample using X-ray microscopy. A kit for staining a neural tissue sample is further provided.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 25, 2018
    Inventor: Yeu-Kuang Hwu
  • Patent number: 9884306
    Abstract: A convection-free flow-type reactor includes a reactor body. The reactor body includes a reaction chamber to house a fluid. An inlet is in communication with the reaction chamber to allow input of a reactant fluid. An outlet is in communication with the reaction chamber to allow output of a product fluid. An energy beam source device provides an energy beam to irradiate the reactant fluid in the reaction chamber. The disclosure further provides a convection-free flow-type synthesis method.
    Type: Grant
    Filed: July 5, 2014
    Date of Patent: February 6, 2018
    Assignee: ACADEMIA SINICA
    Inventors: Yeu-Kuang Hwu, Sheng-Feng Lai, Cheng-Liang Wang
  • Patent number: 9799479
    Abstract: The present invention relates to a method, a system, and a light source for penetrating radiation imaging, and more particularly, to a method, a system, and a light source for X-ray imaging. The system for X-ray phase contrast and high resolution imaging of the present invention comprises an X-ray source comprising a plurality of X-ray micro-light sources, an X-ray sensor configured to receive X-rays penetrating an object, and a computer configured to receive and compute raw image data from the X-ray sensor so as to obtain a clear image of the object.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: October 24, 2017
    Assignee: ACADEMIA SINICA
    Inventors: Yeu-Kuang Hwu, Tsung-Tse Li, Yu-Tai Ching
  • Patent number: 9662080
    Abstract: A method of tracking specific cells in vivo is disclosed. The method of the disclosure includes: providing fluorescent nanoparticles suitable for targeting of specific cells; administering the fluorescent nanoparticles to a subject; providing an X-ray source to irradiate the subject; and determining the distribution and growth of the specific cells by the fluorescent images from the fluorescent nanoparticles and X-ray images of the subject irradiated by the X-ray source.
    Type: Grant
    Filed: August 31, 2013
    Date of Patent: May 30, 2017
    Assignee: ACADEMIA SINICA
    Inventors: Yeu-Kuang Hwu, Chia-Chi Chien, Cheng-Liang Wang
  • Publication number: 20170087640
    Abstract: Photoluminescent gold nanoparticles and the manufacturing method thereof are disclosed. The method for manufacturing photoluminescent gold nanoparticles includes the steps of: preparing a solution containing chloroauric acid and alkanethiolate, wherein the alkanethiolate-to-Au molar ratio is at least 1; and irradiating the solution with ionizing radiation to form gold nanoparticles, wherein the surfaces of the gold nanoparticles are coated with the alkanethiolate to form thiolate-coated gold nanoparticles with gold cores.
    Type: Application
    Filed: March 30, 2016
    Publication date: March 30, 2017
    Inventor: Yeu-Kuang HWU
  • Patent number: 9474769
    Abstract: A method of treating cancer. The method includes introducing an effective amount of an oxidative catalyzing agent including titanium oxide, zinc oxide, zirconium oxide, tungsten oxide or tin oxide into a biological entity, and irradiating the biological entity with a ray. The oxidative catalyzing agent produces hydroxyl or hydrogen peroxide radicals after irradiation with the ray thereon.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: October 25, 2016
    Inventors: Yeu-Kuang Hwu, Tsung-Yeh Yang, Chi-Jen Liu, Chang-Hai Wang
  • Patent number: 9402593
    Abstract: Images of blood vessels of a body are obtained by injecting a refraction enhancement contrast agent into the blood vessels to increase a difference in refractive indices of the blood vessels and surrounding material. The blood vessels are irradiated with a penetrating radiation, and an image of the blood vessels is generated based on detected radiation. The image has visible edge enhancement features indicating boundaries of the blood vessels.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: August 2, 2016
    Assignee: Academia Sinica
    Inventors: Yeu-Kuang Hwu, Giorgio Margaritondo, Jung Ho Je
  • Patent number: 9150688
    Abstract: A method for releasing viruses includes the steps of: preparing a first negatively charged complex, comprising a plurality of viruses, a plurality of polyethyleneimine particles, and a copolymer; transferring the complex to an acidic region, thereby transforming the complex into a positively charged complex to release a portion of the viruses in the acidic region; and transferring the complex to a non-acidic region, thereby transforming the positively charged complex into a negatively charged complex. One embodiment of the copolymer has the following chemical formula: wherein R1 represents aliphatic compounds or aromatic compounds, and R2 includes at least one negatively charged group.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: October 6, 2015
    Assignee: INSTITUTE OF PHYSICS, ACADEMIA SINICA
    Inventors: Yeu Kuang Hwu, S Ja Tseng
  • Publication number: 20150228440
    Abstract: The present invention relates to a method, a system, and a light source for penetrating radiation imaging, and more particularly, to a method, a system, and a light source for X-ray imaging. The system for X-ray phase contrast and high resolution imaging of the present invention comprises an X-ray source comprising a plurality of X-ray micro-light sources, an X-ray sensor configured to receive X-rays penetrating an object, and a computer configured to receive and compute raw image data from the X-ray sensor so as to obtain a clear image of the object.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 13, 2015
    Inventors: YEU-KUANG HWU, TSUNG-TSE LI, YU-TAI CHING
  • Publication number: 20150011818
    Abstract: The present disclosure provides a tumor vessel embolizing agent, including: unmodified gold nanoparticles; and a pharmaceutically acceptable medium. The present disclosure also provides a method of embolizing tumor vessel, including administrating gold nanoparticles as a tumor vessel embolizing agent into a subject to accumulate the gold nanoparticles at a tumor in the subject and to embolize a vessel of the tumor.
    Type: Application
    Filed: July 5, 2014
    Publication date: January 8, 2015
    Inventors: Yeu-Kuang Hwu, Chia-Chi Chien
  • Publication number: 20150008117
    Abstract: A convection-free flow-type reactor includes a reactor body. The reactor body includes a reaction chamber to house a fluid. An inlet is in communication with the reaction chamber to allow input of a reactant fluid. An outlet is in communication with the reaction chamber to allow output of a product fluid. An energy beam source device provides an energy beam to irradiate the reactant fluid in the reaction chamber. The disclosure further provides a convection-free flow-type synthesis method.
    Type: Application
    Filed: July 5, 2014
    Publication date: January 8, 2015
    Inventors: Yeu-Kuang Hwu, Sheng-Feng Lai, Cheng-Liang Wang
  • Patent number: 8734844
    Abstract: A method of synthesizing ligand-conjugated gold nanoparticles (AuNPs) is disclosed. The method comprises: a) providing an amine-modified silica particle; b) providing a solution comprising Au+3 ions; c) suspending the amine-modified silica particle in the solution comprising Au+3 ions; d) allowing the Au3+ ions to be adsorbed and/or immobilized onto the surface of the amine-modified silica particle; e) exposing the Au3+ ions immobilized onto the surface of the amine-modified silica particle to radiation to obtain bare gold nanoparticles (AuNPs) adsorbed and/or immobilized onto the surface of the amine-modified silica particle, wherein the bare AuNPs are without organic surface modifications; and f) reacting a ligand with the bare AuNPs adsorbed and/or immobilized onto the surface of the amine-modified SiNP and thereby obtain ligand-conjugated gold nanoparticles (AuNPs).
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: May 27, 2014
    Assignee: National Health Research Institutes
    Inventors: Chia-Hung Lee, Wei-Neng Liao, Shih-Hsun Cheng, Jen-Kun Chen, Chung-Shi Yang, Leu-Wei Lo, Yeu-Kuang Hwu, Fong-Sian Lin
  • Publication number: 20140066762
    Abstract: A method of tracking specific cells in vivo is disclosed. The method of the disclosure includes: providing fluorescent nanoparticles suitable for targeting of specific cells; administering the fluorescent nanoparticles to a subject; providing an X-ray source to irradiate the subject; and determining the distribution and growth of the specific cells by the fluorescent images from the fluorescent nanoparticles and X-ray images of the subject irradiated by the X-ray source.
    Type: Application
    Filed: August 31, 2013
    Publication date: March 6, 2014
    Applicant: ACADEMIA SINICA
    Inventors: Yeu-Kuang Hwu, Chia-Chi Chien, Cheng-Liang Wang
  • Publication number: 20140065074
    Abstract: A method of tracking growth and metastasis of specific cells in vivo is disclosed. The method of the disclosure includes culturing the specific cells in a medium containing 0.1 ?M to 10 mM nanoparticles as a biomarker for X-rays, such that the specific cells carry the nanoparticles, administering the specific cells carrying the nanoparticles to a subject, irradiating the subject by an X-ray source, and determining the growth and metastasis of the specific cells by X-ray images of the nanoparticles in the subject.
    Type: Application
    Filed: August 31, 2013
    Publication date: March 6, 2014
    Applicant: ACADEMIA SINICA
    Inventors: Yeu-Kuang Hwu, Chia-Chi Chien
  • Publication number: 20130288337
    Abstract: A method for releasing viruses includes the steps of: preparing a first negatively charged complex, comprising a plurality of viruses, a plurality of polyethyleneimine particles, and a copolymer; transferring the complex to an acidic region, thereby transforming the complex into a positively charged complex to release a portion of the viruses in the acidic region; and transferring the complex to a non-acidic region, thereby transforming the positively charged complex into a negatively charged complex. One embodiment of the copolymer has the following chemical formula: wherein R1 represents aliphatic compounds or aromatic compounds, and R2 includes at least one negatively charged group.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 31, 2013
    Inventors: Yeu Kuang HWU, SJA TSENG