1. Nanotech Research Lab, Department of Chemistry, University College of Engineering, Kakuppam, Villupuram, 605 103 Tamilnadu, India
2. Department of Chemistry, University College of Engineering, Panikkankuppam, Panruti, Tamilnadu, India
3. Department of Chemistry, KCG College, Karapakkam, Tamil Nadu, Chennai, Tamilnadu, India
4. Department of Mechanical Engineering, Institute of Technology, Hawassa University, Hawassa, Ethiopia