1. University of Jyvaskyla; Department of Chemistry, Nanoscience Center; P.O.Box 35 40014 Jyväskylä Finland
2. Department of Applied Physics; School of Science; Aalto University; Puumiehenkuja 2 02150 Espoo Finland
3. University of Windsor; Department of Chemistry and Biochemistry; N9B 3P4 Windsor ON Canada
4. Department of Applied Chemistry, Faculty of Textile Technology; University of Zagreb; Prilaz baruna Filipovića 28a 10000 Zagreb Croatia