As a derivant of chitosan

carboxymethyl chitosan has good performances

such as water solubility

antibacterial activity

adsorbability and so on

its antioxidation

anti-tumor

hemostatic effect are well.Carboxymethyl chitosan calcium has a certain antioxidant capacity and liver protection for acute liver injury mice induced by CCl4.Based on these above investigation

application prospect of carboxymethyl chitosan in medicine

food

cosmetics and other fields is described.It can be used in vivo and in vitro as medical materials;it has many characteristics as drug carriers

such as water solubility

biocompatibility and so on

so it can extend residence time of drug in specific parts

then improve bioavailability;it can be used as an sunscreen for cosmetics with excellent UV absorption features and safety;after combined with other materials

it can promote growth of fibroblast as a new injectable soft tissue filler material with good biocompatibility;it also can be used as adsorbent

flocculant and separation membrane material for purification of drinking water

recycling of heavy metal ions

et al.Carboxymethyl chitosan has viscosity

which can extend residence time of drug in the nasal cavity and increase contact time of drug and the nasal mucosa

then it improves bioavailability of drug through the nasal cavity

also plays long-lasting effect as sustained and controlled release preparations.