1. The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA.
2. Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, New South Wales 2522, Australia.
3. Department of Electrical and Computer Engineering and Advanced Material and Process Engineering Laboratory, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.
4. Center for Bio-Artificial Muscle and Department of Biomedical Engineering, Hanyang University, Seoul 133-791, South Korea.
5. Department of Textile Engineering, Çorlu Engineering Faculty, Namık Kemal University, Çorlu-Tekirdağ, Turkey.
6. Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, China.