Definition: Salts of alginic acid that are extracted from marine kelp and used to make dental impressions and as absorbent material for surgical dressings.
alginate-polylysine-alginate [ A-PL-A,alginate-poly-L-lysine,poly-L-lysine alginate,polylysine alginate ] biomembrane used to encapsulate hamster pancreatic islets; presumed structure given in first source