1. School of Chemistry Institute of Science Suranaree University of Technology 111 University Avenue Suranaree, Muang, Nakhon Ratchasima 30000 Thailand
2. Department of Microbiology and Environmental Toxicology University of California Santa Cruz Santa Cruz CA 95064 USA
3. National Nanotechnology Center National Science and Technology Development Agency Thailand Science Park Pathum Thani 12120 Thailand
4. SCiPUS Surawiwat School Suranaree University of Technology 111 University Avenue Suranaree, Muang, Nakhon Ratchasima 30000 Thailand
5. Department of Chemistry Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand