:: We don't have an article on natural polymers-but if you do a search on the term, you'll find that there is a lot of material on the topic scattered throughout the encyclopedia.
22.
The masterbatches can be fairly highly concentrated ( in comparison with the target composition ), with high " let-down ratios "; e . g . one 25 kg bag can be used for a tonne of natural polymer.
23.
Nanoparticles made from natural polymers that are biodegradable have the abilities to target specific organs and tissues in the body, to carry DNA for gene therapy, and to deliver larger molecules such as proteins, peptides, and even genes.
24.
Other nanoparticles are polymer-based, meaning they are made from a natural polymer such as polylactic acid ( PLA ), poly D, L-glycolide ( PLG ), polylactide-co-glycolide ( PLGA ), and polycyanoacrylate ( PCA ).
25.
A large part of the India's total lac production comes from this area . Lac, a natural polymer ( resin ) is produced by a tiny insect, Kerria lacca ( Kerr ), which is purposely cultured on shoots of several species of trees, mainly palas, kusum and ber.
