New Force in Marine Biology! Carboxymethyl Chitosan Empowers Green Upgrades in Multiple Fields

Carboxymethyl chitosan (CMCS), derived from marine crustaceans such as shrimp and crab, is becoming a "green favorite" in the biomedical, environmental protection, and daily chemical industries due to its excellent water solubility and biocompatibility after modification. This natural polysaccharide derivative has broken through application bottlenecks through technological innovation, and its market size is continuously expanding. It is predicted that the global medical field's compound annual growth rate will reach 3.4% from 2025 to 2031.

As a water-soluble modification product of chitosan, carboxymethyl chitosan has completely solved the problem of traditional chitosan's poor water solubility while retaining the natural advantages of biodegradability and non-toxicity. The carboxyl and amino groups in its molecular structure endow it with multiple properties such as antibacterial, adsorption, and promoting repair.

Innovations in the environmental protection and daily chemical fields are equally impressive. The latest research in the Journal of Composite Materials shows that the maximum adsorption capacity of carboxymethyl chitosan composite aerogel for lead ions in water is up to 367.42 mg・g⁻¹, and it can be reused, providing a new path for the treatment of heavy metal wastewater. In the field of skin care, some carboxymethyl chitosan products have twice the moisturizing effect of hyaluronic acid and can also inhibit inflammatory factors, making them preferred raw materials for cosmetics; its application in photovoltaic texturing can further reduce the reflectivity of silicon wafers, contributing to the upgrading of the new energy industry.

Behind the industrial development, technological innovation and policy support are driving forces. Domestic enterprises have built core technology barriers through four national invention patents, and the high-purity preparation process meets the strict requirements of multiple fields. As a key support direction of the national "13th Five-Year Plan" strategic emerging industries, this "waste-to-wealth" marine biological material is empowering industrial upgrading with its green attributes, writing a new chapter in the high-value utilization of marine resources.