1. Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
2. Department of Biology, Faculty Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
3. Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400, Selangor, Malaysia
4. Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia