1. Centre for Print Research (CFPR), University of the West of England (UWE), Frenchay Campus, Bristol BS16 1QY, U.K.
2. National Graphene Institute (NGI), University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
3. Advanced Textiles Research Group, Nottingham Trent University, Shakespeare Street, Nottingham NG1 4GG, U.K.