1. Department of Analytical Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
2. Department of Orthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
3. Department of Chemical Engineering, Alagappa College of Technology, Anna University, Chennai 600 025, India
4. Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur, 50603, Malaysia