Natural polymers
Natural thesaurus occurs in nature and can be expanded. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins .Vulcanized rubber is a synthetic (man-made) polymer, while pectin is an example of a natural polymer. Rubber can be found in nature and harvested as latex (milky liquid) from several types of trees. A challenge for researchers is to select and modify the appropriate material for a scaffold that holds specific properties for the type of wound targeted