Table 2.

Polysaccharides and the applications of their NPs in delivery systems .

Polysaccharides	Origin	Applications of Its NPs
Alginate	Extracted from brown algae (Phaeophyceae)	Gene and drug delivery system, tissue engineering, etc.
Cyclodextrin	Enzymatic conversion of starch	Gene and drug delivery, controlled drug release
Starch	Higher plants	Insulin controlled release & drug delivery
Pectin	Extracted from the middle lamellae of plant cells	Wound healing, delivery of amino acids and drugs
Chitosan	Extracted from the cell walls of fungi and the exoskeleton of crustaceans (crabs, shrimp)	Nanocarrier in drug delivery and antimicrobial
Cellulose	Cell wall of green plants	Nanodelivery for oral protein, for anticancer drugs, etc.