1. School of Engineering and Physical Sciences; Heriot-Watt University; Edinburgh EH14 4AS UK
2. PV Lighthouse; Coledale NSW 2515 Australia
3. ITW Technology Center; Illinois Tool Works Inc.; Glenview IL 60026 USA
4. ITW Performance Polymers & Fluids; Illinois Tool Works Inc.; Boston MA 01923 USA
5. School of Materials, Energy, Water and Environmental Sciences; Nelson Mandela African Institute of Science and Technology; Tengeru, Arusha Tanzania