Antibacterial cryogel and porous hydrogel, their preparation method, and their use for disinfecting water
AssigneeNanyang Technological University
InventorsXiao HU, Siew Leng LOO, Anthony G. FANE, Teik Thye LIM, William B. KRANTZ
Life of this patent
Estimating the term…
Abstract
The invention relates to an antibacterial cryogel, its preparation method, and its use for disinfecting water. The invention further relates to an antibacterial porous hydrogel.
Claims17
An antibacterial cryogel comprising a polymeric cryogel matrix and an antibacterial agent incorporated therein.
A method of preparing an antibacterial cryogel, comprising:
- immersing a cryogel in a first solution comprising a precursor of an antibacterial agent to form a modified cryogel, wherein the modified cryogel comprises a polymeric cryogel matrix and the precursor of the antibacterial agent incorporated therein;
- removing the modified cryogel from the first solution and immersing the modified cryogel in a second solution comprising a reducing agent to reduce the precursor of the antibacterial agent to an antibacterial agent.
An antibacterial porous hydrogel comprising a porous polymeric hydrogel matrix and an antibacterial agent incorporated into pores of the porous polymeric hydrogel matrix.
A method of preparing an antibacterial porous hydrogel, comprising:
- immersing a porous hydrogel in a first solution comprising a precursor of an antibacterial agent to form a modified porous hydrogel, wherein the modified porous hydrogel comprises a porous polymeric hydrogel matrix and the precursor of the antibacterial agent incorporated therein;
- removing the modified porous hydrogel from the first solution and immersing the modified porous hydrogel in a second solution comprising a reducing agent to reduce the precursor of the antibacterial agent to an antibacterial agent.
Dependencies are inferred from the claim text.