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US 2023/0143886 A1Published application
Compositions including metal organic frame for inhibiting formation or growth of ice crystallization and preparing method thereof
AssigneeGwangju Institute of Science and Technology
InventorsEunji LEE, Nayeong JEON, Jiyeon LEE
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Abstract
A composition according to an embodiment includes particles of metal-organic framework (MOF) including a central metal of zirconium, and two adjacent zirconiums on a surface of the particle has a structure represented by Formula 1. The composition may inhibit formation or growth of ice crystals through amino acid bond obtained by size control and surface modification of the metal-organic framework particles.
Claims9
A composition comprising:
- particles of metal-organic framework (MOF), each particle comprising central metals of zirconium and linkers which are organic ligand for connecting the central metals,
- wherein two adjacent zirconiums on a surface of the particle have a structure represented by Formula 1:
- wherein Zr is the zirconium on the surface of the particle;
- R1 and R2 are each alkyl having 1 to 5 carbon atoms;
- and
- R3 is one selected from the group consisting of Thr, Val, Ala, Ser and Gly.
3 more elements
A method of preparing a composition, the method comprising:
- surface-modifying metal-organic framework (MOF) particles with acrylate having a carboxyl group at a terminal thereof, wherein each particle comprises a central metal of zirconium and a linker which is an organic ligand for connecting the central metals;
- and
- treating the surface-modified metal-organic framework particles with amino acid selected from the group consisting of Thr, Val, Ala, Ser and Gly to bind the amino acid to the acrylate.
Dependencies are inferred from the claim text.