Synthesis of poly(ethylene glycol)-graft-chitosan and using as ligand for fabrication of water-soluble quantum dots

- We synthesized PEG-g-CS graft copolymers with normal PEG20000.
- We used the synthesized polycation as ligand to prepare CdSe QDs.
- The CdSe QDs were prepared in aqueous solution.
- The polymer-QDs hybrids presented complicated multilevel structures.
- The polymer-QDs hybrids possessed nice fluorescence property.