1. State Key Laboratory of Medicinal Chemical BiologyKey Laboratory of Functional Polymer MaterialsCollege of PharmacyNankai University Tianjin 300071 China
2. Department of Mechanical EngineeringUniversity of Texas at Dallas Richardson TX 75080 USA
3. Alan G. MacDiarmid NanoTech InstituteUniversity of Texas at Dallas Richardson TX 75080 USA
4. School of Materials Science and Energy EngineeringFoshan University Foshan 528325 China