Chitosan itself originates from the shells of crustaceans such as shrimp and crabs and is the second largest natural polysaccharide after cellulose in terms of reserves in nature. However, the insolubility of ordinary chitosan in water greatly limits its application scope. Through chemical modificat Read More

With the arrival of the New Year, everything is renewed.On the occasion of this New Year,Zhiyuan Biotechnology & Xinzhi Yuan Biotechnologyextend our sincere New Year greetings to all our partners,customers, friends, and colleagues who have always supported and cared for us.In the past year, we are d Read More

Controlled and sustained drug release has become a central focus in modern pharmaceutical formulation and drug delivery research. Compared with conventional immediate-release dosage forms, controlled and sustained release systems are designed to deliver drugs at a predetermined rate for a prolonged period of time. Read More

Chitosan is a naturally derived polysaccharide obtained from chitin and has been widely studied as a biomaterial due to its biocompatibility, biodegradability, and low toxicity. Read More

In pharmaceutical research and development, poor aqueous solubility and low bioavailability are major challenges that limit the effectiveness of many drug products. Read More

Hydroxypropyl chitosan (HPC) is a chemically modified derivative of chitosan, a natural polysaccharide derived from chitin, which is abundantly found in the exoskeletons of crustaceans such as shrimp and crabs. Read More

Modern drug delivery systems aim to improve therapeutic efficacy while reducing side effects and dosing frequency. However, traditional dosage forms often fail to maintain stable drug levels. Read More

In recent years, the skincare industry has seen significant advancements in the development of more effective and efficient delivery systems for active ingredients. Among these innovations, polymer-based sustained release systems have gained attention for their ability to deliver active ingredients, Read More