Patents Assigned to NANOFAENTECH CO., Ltd.
  • Patent number: 11952687
    Abstract: The present disclosure provides a method for producing a cell-culturing polyvinyl alcohol-based nanofiber structure, the method comprising: electrospinning an electrospun solution to form a nanofiber mat, wherein the electrospun solution contains polyvinyl alcohol (PVA), polyacrylic acid (PA) and glutaraldehyde (GA); crosslinking the nanofiber mat via a hydrochloric acid (HCl) vapor treatment; and treating the crosslinked nanofiber mat with dimethylformamide (DMF) solvent to crystallize the nanofiber mat.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: April 9, 2024
    Assignee: NANOFAENTECH CO., LTD.
    Inventors: Jong Young Kwak, Jung Min Kim, Yeo Jin Park, Dan Bi Park, Qasaim Muhammad, Young Hun Jeong
  • Patent number: 11685900
    Abstract: Disclosed is a nanofiber-based long-term primary hepatocyte culture system and a culture method, wherein the primary hepatocyte culture system has an advantage that it can culture cells in three-dimensions in vitro to maintain the original physiological activity of low proliferative primary hepatocytes for a long time by co-culturing indirectly by separating primary hepatocytes and hepatic non-parenchymal cells with a support consisting of nanofibers therebetween without direct co-culture.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: June 27, 2023
    Assignee: NANOFAENTECH CO., LTD.
    Inventors: Jong-Young Kwak, Min Gyu Song, So Hee Kim, Min Ho Choi
  • Patent number: 11643634
    Abstract: A method of preparing a polyvinyl alcohol nanofiber membrane includes a material for controlling cell specific adhesion, and a nanofiber membrane that can maintain cellular functions such as cell activity and growth is prepared by adding aqueous solutions containing a polyacrylic acid and a glutaraldehyde crosslinking agent in a polyvinyl alcohol and materials capable of enhancing or regulating cell adhesion, electrospinning, treating with hydrochloric acid vapor and dimethylformaldehyde solvent and treating with sodium hydroxide to control the cell adhesion.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: May 9, 2023
    Assignee: NANOFAENTECH CO., LTD.
    Inventors: Jong-Young Kwak, Minho Choi, Gwang Lee
  • Publication number: 20210332511
    Abstract: The present disclosure provides a method for producing a cell-culturing polyvinyl alcohol-based nanofiber structure, the method comprising: electrospinning an electrospun solution to form a nanofiber mat, wherein the electrospun solution contains polyvinyl alcohol (PVA), polyacrylic acid (PA) and glutaraldehyde (GA); crosslinking the nanofiber mat via a hydrochloric acid (HCl) vapor treatment; and treating the crosslinked nanofiber mat with dimethylformamide (DMF) solvent to crystallize the nanofiber mat.
    Type: Application
    Filed: January 12, 2017
    Publication date: October 28, 2021
    Applicant: NANOFAENTECH CO., LTD.
    Inventors: Jong Young KWAK, Jung Min KIM, Yeo Jin PARK, Dan Bi PARK, Qasaim MUHAMMAD, Young Hun JEONG
  • Publication number: 20200283725
    Abstract: A method of preparing a polyvinyl alcohol nanofiber membrane includes a material for controlling cell specific adhesion, and a nanofiber membrane that can maintain cellular functions such as cell activity and growth is prepared by adding aqueous solutions containing a polyacrylic acid and a glutaraldehyde crosslinking agent in a polyvinyl alcohol and materials capable of enhancing or regulating cell adhesion, electrospinning, treating with hydrochloric acid vapor and dimethylformaldehyde solvent and treating with sodium hydroxide to control the cell adhesion.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 10, 2020
    Applicants: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, NANOFAENTECH CO., Ltd.
    Inventors: Jong-Young KWAK, Minho CHOI, Gwang LEE