1. Department of Chemistry, Faculty of ScienceUniversiti Putra Malaysia Serdang Selangor Malaysia
2. Functional Devices Laboratory, Institute of Advanced TechnologyUniversiti Putra Malaysia Serdang Selangor Malaysia
3. Faculty of Science and Technology, School of Chemical Sciences and Food Technology, Polymer Research Center (PORCE)Universiti Kebangsaan Malaysia (UKM) Bangi Selangor Malaysia