国家/地区 中国（2）
IPC部 C（2）
IPC大类 C08（2）
IPC小类 C08L（2）
IPC C08L005/08（2）
发明人 LI H（2）
公开年 2023（2）
申请年 2022（2） 
专利权人

Preparation of double-layer polymer modified graphene material used in separation and enrichment of glycoprotein, involves mixing e.g. hydrophilic polymer and solvent for electrostatic adsorption, and mixing obtained material with hyaluronic acid buffer salt solution for electrostatic adsorption.

GUAN S, LI H, YU J, PENG J, WANG L, DONG P, ZHAO Y

Double-layer hydrogel dressing used in e.g. wound repairing and absorbing wound exudation liquid, comprises inner layer comprising chitosan sulfate or its derivatives, cross-linking agent and bioactive filler, and outer layer comprising natural polysaccharide, film forming agent and organic solvent.

YANG T, YU Y, LI H, JI S, ZHANG J, YU J, CHENG X, GOU H, ZHANG X, LIU C