1. 1Department of Chemistry, Khadir Mohideen College, Adirampattinam, 614701 (Affiliated to Bharathidasan University, Tiruchirappalli), India.
2. 2Department of Microbiology, Central University of Tamil Nadu, Thiruvarur, India.
3. 3Department of Botany, Jamal Mohamed College (Auto), (Affiliated to Bharathidasan University, Tiruchirappalli), India.
4. 4Department of Physics, Thiagarajar College, Madurai, Tamilnadu, India.
5. 5Department of Material Science, Central University of Tamil Nadu, Thiruvarur, India.
6. 6Department of Physics, Khadir Mohideen College, Adirampattinam (Affiliated to Bharathidasan University, Tiruchirappalli), India.