1. Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok, Thailand
2. Department of Computer Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand
3. Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
4. Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, Thailand