1. Department of Civil and Environmental Engineering, The University of Auckland, Auckland, New Zealand
2. School of Environment, The University of Auckland, Auckland, New Zealand
3. School of Science, Auckland University of Technology, Auckland, New Zealand
4. The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
5. Department of Biotechnology, Chemistry and Pharmaceutical Sciences, Università degli Studi di Siena, Siena, Italy