1. Graduate School of Science and Technology, Niigata University 8050 Ikarashi 2-nocho, Nishi-ku, Niigata, 959-2181, Japan
2. Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
3. Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand