Patent ID: 11904126
Assignee: CITY UNIVERSITY OF HONG KONG
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 4:
5. The microneedle device according to claim 2, wherein the cryoprotectant includes at least one of poly(ethylene glycol) (PEG), polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), poly-l-lysine, hyaluronic acid (HA), starch, gelatin, agarose, alginate, chitosan, cellulose, carboxymethyl cellulose (CMC), collagen, chitin, dextran, guar gum, pullulan, xanthan, xyloglucan, heparin, chondroitin, keratan, mucin, and their derivatives thereof.