• 专利标题:   Preparing graphene oxide-modified medical absorbent cotton for surgical hemostasis field, by mixing cotton fiber and large-sheet graphene oxide solutions, mixing with medium-sheet graphene oxide solution, dripping Tris solution, mixing with e.g. crosslinking agent, freeze-drying and sterilizing.
  • 专利号:   CN114272426-A, CN114272426-B
  • 发明人:   ZHENG C, YANG Z, LIU Y
  • 专利权人:   SICHUAN SUINING KANGDA HYGIENIC MATERIAL
  • 国际专利分类:   A61L015/18, A61L015/40, A61L015/42
  • 专利详细信息:   CN114272426-A 05 Apr 2022 A61L-015/18 202255 Chinese
  • 申请详细信息:   CN114272426-A CN11613870 27 Dec 2021
  • 优先权号:   CN11613870

▎ 摘  要

NOVELTY - Method for preparing a graphene oxide-modified medical absorbent cotton, involves (a) sequentially adding a cotton fiber solution and a large-sheet graphene oxide solution to a container, ultrasonically processing, and uniformly stirring and mixing, (b) after stirring, adding a medium-sheet graphene oxide sheet aqueous solution, and continuously stirring and mixing uniformly, (c) dripping a Tris solution into the container to adjust the pH of the reaction system solution to alkaline, then adding a crosslinking agent and a dispersant to the reaction system solution, and uniformly stirring and mixing, (d) freeze-drying the obtained solution, and (e) sterilizing the obtained graphene oxide absorbent cotton under sterile conditions, and packaging to obtain the finished product. USE - The method is useful for preparing a graphene oxide-modified medical absorbent cotton (claimed), which is useful in the surgical hemostasis field. ADVANTAGE - The graphene oxide modified absorbent cotton has a loose and porous structure, so it has excellent water absorption and hemostasis effects and mechanical strength, does not increase the infection probability, does not affect tissue healing, and is cheap. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the graphene oxide-modified medical absorbent cotton prepared by the method.