Patents by Inventor Siwoo Cho

Siwoo Cho 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: 10585022
    Abstract: Provided are an extracellular vesicle collecting apparatus using an electrode and a porous membrane and a method for using the same. The extracellular vesicle collecting apparatus includes i) an upper frame in which a pair of through holes is disposed so that a buffer solution flows therethrough, ii) a buffer tube which is inserted in the through holes and in which the buffer solution flows, iii) a positive electrode disposed on the upper frame, iv) a porous membrane located below the upper frame, v) a spacer which is located below the porous membrane and has a hollow space disposed therein, vi) a plurality of guide tubes through which a blood flows in the hollow space, vii) a lower frame which is coupled to the upper frame to be opposite to the upper frame and receives the porous membrane and the spacer therein, and viii) a negative electrode provided below the lower frame. Extracellular vesicles contained in the blood are collected by the porous membrane.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: March 10, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Rhokyun Kwak, Ji Yoon Kang, Jaesung Park, Siwoo Cho
  • Patent number: 10132730
    Abstract: The present invention relates to an apparatus for preparing cell-derived artificial microvesicles, and more specifically, to an apparatus for preparing artificial microvesicles by allowing cells, which are concentrated using centrifugal force, to pass through a porous filter. Artificial microvesicles prepared according to the present invention maintains the structure of the cell membrane as it is, and contains cytoplasm by minimizing the loss of cytoplasm by using a buffer solution during preparation. Therefore, the artificial microvesicles prepared using the apparatus of the present invention is expected to be useful for applied research such as the diagnosis of diseases, drug delivery techniques and basic research.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 20, 2018
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Jae-Sung Park, Wonju Jo, Jun Ho Kim, Siwoo Cho, Hwapyeong Jeong
  • Publication number: 20170045430
    Abstract: Provided are an extracellular vesicle collecting apparatus using an electrode and a porous membrane and a method for using the same. The extracellular vesicle collecting apparatus includes i) an upper frame in which a pair of through holes is disposed so that a buffer solution flows therethrough, ii) a buffer tube which is inserted in the through holes and in which the buffer solution flows, iii) a positive electrode disposed on the upper frame, iv) a porous membrane located below the upper frame, v) a spacer which is located below the porous membrane and has a hollow space disposed therein, vi) a plurality of guide tubes through which a blood flows in the hollow space, vii) a lower frame which is coupled to the upper frame to be opposite to the upper frame and receives the porous membrane and the spacer therein, and viii) a negative electrode provided below the lower frame. Extracellular vesicles contained in the blood are collected by the porous membrane.
    Type: Application
    Filed: July 22, 2016
    Publication date: February 16, 2017
    Applicant: Korea Institute of Science and Technology
    Inventors: Rhokyun KWAK, Ji Yoon KANG, Jaesung PARK, Siwoo CHO
  • Publication number: 20160305857
    Abstract: The present invention relates to an apparatus for preparing cell-derived artificial microvesicles, and more specifically, to an apparatus for preparing artificial microvesicles by allowing cells, which are concentrated using centrifugal force, to pass through a porous filter. Artificial microvesicles prepared according to the present invention maintains the structure of the cell membrane as it is, and contains cytoplasm by minimizing the loss of cytoplasm by using a buffer solution during preparation. Therefore, the artificial microvesicles prepared using the apparatus of the present invention is expected to be useful for applied research such as the diagnosis of diseases, drug delivery techniques and basic research.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 20, 2016
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Jae-Sung Park, Wonju Jo, Jun Ho Kim, Siwoo Cho, Hwapyeong Jeong