1. Sensor Research Unit (SRU), Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
2. National Nanotechnology Center of Advanced Structural and Functional Nanomaterials, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
3. Center of Excellence in Bioactive Resources for Innovative Clinical Applications, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
4. National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
5. School of Biological and Environmental Sciences, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
6. Toyota Physical and Chemical Research Institute, Nagakute, Aichi 480-1192, Japan