1. Department of Chemical Engineering National Taiwan University of Science and Technology Taipei 10607 Taiwan
2. Nanotechnology & Integrated Bio‐Engineering Centre (NIBEC) Ulster University Shore Road Newtownabbey BT37 0QB UK
3. Department of Chemical and Biomolecular Engineering Case Western Reserve University Cleveland OH 44106‐7217 USA
4. Department of Electrical and Computer Engineering University of Illinois Urbana IL 61801 USA
5. School of Chemistry Physics and Mechanical Engineering Queensland University of Technology Brisbane QLD 4000 Australia