Patent ID: 11912924
Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  A  B | IPC A  B  C

Claim 0:
1. A method for freezing a cell or tissue, the method comprising exposing a cell or tissue of a subject to a temperature below zero in the presence of a cryopreservation composition comprising a cryoprotective agent consisting of a gold (Au) nano structure in which at least a portion thereof is concave, wherein the gold (Au) nanostructure has a concave surface such that a liquid water layer is formed thereon and ice does not grow on the concave surface during the exposing the cell or tissue of the subject to the temperature below zero in the presence of the cryopreservation composition, and wherein the gold (Au) nanostructure has a shape of tetrahedron, hexahedron, octahedron, decahedron, dodecahedron, icosahedron, tetrakis hexahedron, hexakis octahedron, rhombic dodecahedron, cylinder, saddle or cap.