Alginic Acid – A Traditional Pharmaceutical Biopolymer with Modern Applications in Novel Drug Delivery

Polymer is a class of natural or synthetic substance or material which composed of many repeated subunits of macromolecules. Polymers are basically classified into two groups namely natural polymers and synthetic polymers. Natural biopolymers play essential roles than synthetic due to its unique properties like biodegradability, biocompatibility, and safety. Alginic acid is a biopolymer which is extracted from seaweed- algae sources; mainly from Laminaria. Due to its excellent film formation, biodegradability and biocompatibility nature, alginic acid has a widespread of applications in the drug delivery system.