1. The Alan G MacDiarmid NanoTech Institute; The University of Texas at Dallas; 800 West Campbell Road BE26 Richardson TX 75080 USA
2. Materials and Mechatronic Engineering; Intelligent Polymer Research Institute; Australian Research Council Centre of Excellence for Electromaterials Science; University of Wollongong; Northfields Avenue Wollongong NSW 2522 Australia
3. LINTEC Nano-Science and Technology Center; 990 N. Bowser Road, Suite 800 Richardson TX 75081 USA