Single step coupling for multi-responsive water-based chitin/chitosan magnetic nanoparticles

- Coupling of chitin/chitosan with magnetic nanoparticles in aqueous is proposed.
- The use of glycidoxypropyltrimethoxy silane allows one step coupling reaction.
- The product obtained shows solvent and pH responsiveness.
- An external magnetic field initiates alignment of nano-rod structured chitin.
- The preliminary study shows a potential DNA extraction application.