Patents by Inventor Chenjie Xu

Chenjie Xu 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: 11951272
    Abstract: A cryo formulation-based microneedle device for ocular delivery of bioactive therapeutic agents. The microneedle device includes: one or more microneedle patches each including an array of miniaturized needles, wherein each miniaturized needle defining a base end and a tip; and a substrate to which the base end of the array of miniaturized needles is attached or integrated thereto; wherein the microneedle patch is in a cryo status; wherein each of the one or more microneedle patch is adapted to be applied on cornea of an eye, in which the miniaturized needles penetrates into the eye; and wherein the miniaturized needles is further arranged to melt so as to release one or more bioactive therapeutic agents into the eye to achieve a targeted therapeutic effect.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: April 9, 2024
    Assignee: City University of Hong Kong
    Inventors: Chenjie Xu, Hao Chang
  • Patent number: 11904126
    Abstract: A cryo formulation-based microneedle device for transdermal delivery of bioactive therapeutic agents. The microneedle device includes: one or more microneedle patches each including an array of miniaturized needles, wherein each miniaturized needle defining a base end and a tip; and a substrate to which the base end of the array of miniaturized needles is attached or integrated thereto; wherein the microneedle patch is in a cryo status; wherein each of the one or more microneedle patch is adapted to be applied on a skin surface, in which the miniaturized needles penetrates into skin; wherein the miniaturized needles is further arranged to melt so as to release one or more bioactive therapeutic agents into the skin to achieve a targeted therapeutic effect; and wherein the bioactive therapeutic agents includes protein and/or antigens.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: February 20, 2024
    Assignee: City University of Hong Kong
    Inventors: Chenjie Xu, Hao Chang
  • Publication number: 20240024646
    Abstract: The present invention provides an implantable electrostimulation-based drug delivery system incorporating microneedle-based drug delivery module connecting with a wirelessly-controlled electrostimulation module such that under a small input power generated by magnetic coupling between a transmission antenna and a harvester of the wirelessly-controlled electrostimulation module, one or more substances stored in the microneedles can be released to tissues of a target site while no subsequent removal of the system from the target site is required as the system is entirely biodegradable and bioresorbable in vivo after a sufficient period of time.
    Type: Application
    Filed: July 25, 2022
    Publication date: January 25, 2024
    Inventors: Xinge YU, Chenjie XU, Ya HUANG
  • Publication number: 20230301584
    Abstract: The present disclosure relates to a nanosensor for real-time monitoring of wound healing, a manufacturing method thereof, and a real-time monitoring system for wound healing using the same. A nanosensor according to example embodiments includes a biomarker for detecting mRNA and a reference gene on gold nanoparticles, thereby providing an objective indicator through monitoring of wound healing, enabling monitoring of wound healing through direct monitoring using real-time fluorescence by including a fluorescent marker in a nanoflare, and enabling evaluation of a whole wound healing process in normal and patient groups (diabetes) through real-time monitoring. In addition, the nanosensor according to the example embodiments has advantages of shortening synthesis time and improving efficiency by 30% through integration of a novel synthesis method (freezing method) rather than an existing synthesis method (salt aging).
    Type: Application
    Filed: November 21, 2022
    Publication date: September 28, 2023
    Applicants: Korea University Research and Business Foundation, City University of Hong Kong
    Inventors: Woo young JANG, Jangsun HWANG, Chenjie XU
  • Publication number: 20230293872
    Abstract: A method for fabricating a cryomicroneedle, includes the steps of: providing a microneedle scaffold including a plurality of pores; providing a suspension including a biological agent; loading the biological agent into the microneedle scaffold by immersing the microneedle scaffold in the suspension to form a loaded microneedle scaffold; and freezing the loaded microneedle scaffold to provide the cryomicroneedle. A cryomicroneedle prepared according to the method above and methods for using such a cryomicroneedle are described as well.
    Type: Application
    Filed: January 6, 2023
    Publication date: September 21, 2023
    Inventors: Chenjie Xu, Mengjia Zheng
  • Publication number: 20230285730
    Abstract: A cryo formulation-based microneedle device for transdermal delivery of bioactive therapeutic agents. The microneedle device includes: one or more microneedle patches each including an array of miniaturized needles, wherein each miniaturized needle defining a base end and a tip; and a substrate to which the base end of the array of miniaturized needles is attached or integrated thereto; wherein the microneedle patch is in a cryo status; wherein each of the one or more microneedle patch is adapted to be applied on a skin surface, in which the miniaturized needles penetrates into skin; wherein the miniaturized needles is further arranged to melt so as to release one or more bioactive therapeutic agents into the skin to achieve a targeted therapeutic effect; and wherein the bioactive therapeutic agents includes protein and/or antigens.
    Type: Application
    Filed: July 27, 2021
    Publication date: September 14, 2023
    Inventors: Chenjie Xu, Hao Chang
  • Publication number: 20230270984
    Abstract: A cryo formulation-based microneedle device for ocular delivery of bioactive therapeutic agents. The microneedle device includes: one or more microneedle patches each including an array of miniaturized needles, wherein each miniaturized needle defining a base end and a tip; and a substrate to which the base end of the array of miniaturized needles is attached or integrated thereto; wherein the microneedle patch is in a cryo status; wherein each of the one or more microneedle patch is adapted to be applied on cornea of an eye, in which the miniaturized needles penetrates into the eye; and wherein the miniaturized needles is further arranged to melt so as to release one or more bioactive therapeutic agents into the eye to achieve a targeted therapeutic effect.
    Type: Application
    Filed: July 27, 2021
    Publication date: August 31, 2023
    Inventors: Chenjie Xu, Hao Chang
  • Publication number: 20230038697
    Abstract: A cryo formulation-based microneedle device for ocular delivery of bioactive therapeutic agents. The microneedle device includes: one or more microneedle patches each including an array of miniaturized needles, wherein each miniaturized needle defining a base end and a tip; and a substrate to which the base end of the array of miniaturized needles is attached or integrated thereto; wherein the microneedle patch is in a cryo status; wherein each of the one or more microneedle patch is adapted to be applied on cornea of an eye, in which the miniaturized needles penetrates into the eye; and wherein the miniaturized needles is further arranged to melt so as to release one or more bioactive therapeutic agents into the eye to achieve a targeted therapeutic effect.
    Type: Application
    Filed: July 27, 2021
    Publication date: February 9, 2023
    Inventors: Chenjie Xu, Hao Chang
  • Publication number: 20230033564
    Abstract: A cryo formulation-based microneedle device for transdermal delivery of bioactive therapeutic agents. The microneedle device includes: one or more microneedle patches each including an array of miniaturized needles, wherein each miniaturized needle defining a base end and a tip; and a substrate to which the base end of the array of miniaturized needles is attached or integrated thereto; wherein the microneedle patch is in a cryo status; wherein each of the one or more microneedle patch is adapted to be applied on a skin surface, in which the miniaturized needles penetrates into skin; wherein the miniaturized needles is further arranged to melt so as to release one or more bioactive therapeutic agents into the skin to achieve a targeted therapeutic effect; and wherein the bioactive therapeutic agents includes protein and/or antigens.
    Type: Application
    Filed: July 27, 2021
    Publication date: February 2, 2023
    Inventors: Chenjie Xu, Hao Chang
  • Publication number: 20220062606
    Abstract: A cryo formulation-based microneedle device for transdermal delivery of bioactive therapeutic agents. The microneedle device includes: one or more microneedle patches each including an array of miniaturized needles, wherein each miniaturized needle defining a base end and a tip; and a substrate to which the base end of the array of miniaturized needles is attached or integrated thereto; wherein the microneedle patch is in a cryo status; wherein each of the one or more microneedle patch is adapted to be applied on a skin surface, in which the miniaturized needles penetrates into skin; and wherein the miniaturized needles is further arranged to melt so as to release one or more bioactive therapeutic agents into the skin to achieve a targeted therapeutic effect.
    Type: Application
    Filed: July 27, 2021
    Publication date: March 3, 2022
    Inventors: PENG CHEN, CHENJIE XU, HAO CHANG
  • Publication number: 20210346665
    Abstract: The present disclosure provides for a microneedle array. The microneedle array is useable for delivering an active agent to a subject. The microneedle array includes a base having microneedles disposed thereon, wherein each of the microneedles is formed of (i) a swellable and water-insoluble matrix comprising a crosslinked polymer or (ii) a water-soluble matrix comprising a water-soluble polymer; and a conductive polymer incorporated in the swellable and water-insoluble matrix or the water-soluble matrix. A device configured to deliver an active agent and a method of delivering an active agent through the device, wherein the device includes the microneedle array, are provided herein. A method of producing the microneedle array is also disclosed herein.
    Type: Application
    Filed: September 20, 2019
    Publication date: November 11, 2021
    Inventors: Chenjie XU, Bee Tin Goh, Zayim Razino D/O Seeni Syed, Yuchun Liu, Wan Ting Sharon Chew
  • Publication number: 20210000955
    Abstract: The present application provides an organosilica nanoparticle comprising: (a) a photosensitizer for photodynamic therapy covalently incorporated therein; and (b) optionally, at least one agent encapsulated therein, as well as a pharmaceutical composition comprising said organosilica nanoparticle. Also provided herein are said organosilica nanoparticle or pharmaceutical composition for use as a medicament or in the treatment of a disease, disorder, or condition. More specifically, provided is a method for treating a disease, disorder, or condition in a subject using said aid organosilica nanoparticle or pharmaceutical composition.
    Type: Application
    Filed: December 5, 2018
    Publication date: January 7, 2021
    Inventors: Huijun Phoebe THAM, Keming XU, Wei Qi LIM, Hongzhong CHEN, Subramanian VENKATRAMAN, Chenjie XU, Yanli ZHAO
  • Patent number: 10191204
    Abstract: Materials and lightguides formed thereof that are suitable for use in lighting units to impart a color filtering effect to visible light. At least a portion of such a lightguide (16) is formed of a composite material comprising a polymeric matrix material and an inorganic particulate material that contributes a color filtering effect to visible light passing through the composite material, and the particulate material comprises a neodymium compound containing Nd3+ ions.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: January 29, 2019
    Assignee: GE Lighting Solutions, LLC
    Inventors: Yingchun Fu, Chenjie Xu, Xiaojun Ren, Dengke Cai, Jianmin He, Matthew A. Bugenske
  • Publication number: 20170336557
    Abstract: Materials and lightguides formed thereof that are suitable for use in lighting units to impart a color filtering effect to visible light. At least a portion of such a lightguide (16) is formed of a composite material comprising a polymeric matrix material and an inorganic particulate material that contributes a color filtering effect to visible light passing through the composite material, and the particulate material comprises a neodymium compound containing Nd3+ ions.
    Type: Application
    Filed: January 6, 2015
    Publication date: November 23, 2017
    Inventors: Yingchun FU, Chenjie XU, Xiaojun REN, Dengke CAI, Jianmin HE, Matthew A. BUGENSKE
  • Patent number: 8518713
    Abstract: Generally, conjugate systems, self-illuminating quantum dot conjugates, methods of detecting a target in a host, methods of treating a disease in a host, and the like, are described herein.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: August 27, 2013
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jianghong Rao, Min-kyung So, Chenjie Xu, Andreas M. Loening, Sanjiv S. Gambhir
  • Publication number: 20120269734
    Abstract: Generally, aspects of the present disclosure are directed to conjugate systems, self-illuminating quantum dot conjugates, methods of detecting a target in a host, methods of treating a disease in a host, and the like.
    Type: Application
    Filed: June 13, 2012
    Publication date: October 25, 2012
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jianghong Rao, Min-kyung So, Chenjie Xu, Andreas M. Loening, Sanjiv S. Gambhir
  • Publication number: 20120264961
    Abstract: An antibody-conserving method for linking a therapeutic platinum compound to nanoparticles comprising Au Like-Fe3O4, which is used for both drug delivery and tumor diagnosis.
    Type: Application
    Filed: August 25, 2010
    Publication date: October 18, 2012
    Applicant: Brown University
    Inventors: Shouheng Sun, Chenjie Xu
  • Patent number: 8263417
    Abstract: Generally, conjugate systems, self-illuminating quantum dot conjugates, methods of detecting a target in a host, methods of treating a disease in a host, and the like, are described herein.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: September 11, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jianghong Rao, Min-kyung So, Chenjie Xu, Andreas M. Loening, Sanjiv S. Gambhir
  • Publication number: 20090004117
    Abstract: Generally, aspects of the present disclosure are directed to conjugate systems, self-illuminating quantum dot conjugates, methods of detecting a target in a host, methods of treating a disease in a host, and the like.
    Type: Application
    Filed: January 4, 2007
    Publication date: January 1, 2009
    Inventors: Jianghong Rao, Min-kyung So, Chenjie Xu, Andreas M. Loening, Sanjiv S. Gambhir