1. Chemistry of InterfacesDivision of Chemical EngineeringLuleå University of Technology97187LuleåSweden
2. NMR Research GroupFaculty of Science, University of OuluP. O. Box 300090014OuluFinland
3. Department of Chemical SciencesTezpur University784028TezpurAssamIndia
4. Engineering Sciences and MathematicsDivision of Material ScienceLuleå University of Technology97187LuleåSweden