1. Laboratory of Living Soft Matter, Institute of Quantum Beam Science, Ibaraki University 162-1, Shirakata, Ibaraki 319-1106, Japan
2. Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Padang, Indonesia, 25131
3. FC Development, Co., Ltd., Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan