1. Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Sri Soratha Mawatha, Nugegoda 10250, Sri Lanka
2. Department of Physics, University of Colombo, Colombo 003000, Sri Lanka
3. Instrument Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Sri Soratha Mawatha, Nugegoda 10250, Sri Lanka
4. Department of Civil and Environmental Technology, Faculty of Technology, University of Sri Jayewardenepura, Pitipana, Nugegoda 10100, Sri Lanka
5. Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Colombo, Kynsey Road, Colombo 003000, Sri Lanka
6. Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Sri Soratha Mawatha, Nugegoda 10250, Sri Lanka