1. Dental Biomaterials Science Program, Graduate School, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
2. Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
3. Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
4. Dental Biomaterials Science Program, Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.