GELATION IN ALGINATE SOLUTIONS AND ITS APPLICATIONS IN CARTILAGE TISSUE-ENGINEERING AND DRUG CONTROLLED RELEASE (Special Topic)
海藻酸盐凝胶化及其在软骨组织工程和药物控释领域的应用（专题报道）

Alginate possesses many favorable properties required for biomaterials such as biocompatibility and gelation under gentle conditions.The critical behaviour of the sol-gel transition in aqueous alginate solutions induced by cations was affected by many factors, including the molecular weight and molecular structure sequence of alginate and the kind of cations.The critical exponents suggested two categories of the gelation as growth and crosslink according to molecular size in the solution just before the gelation.Alginate is widely used in tissue-engineered cartilages and drug controlled release.This review seeks to condense information in developing materials for these applications.