1. Department of Chemistry; Karnatak University; Dharwad 580003 Karnataka India
2. Institute of Materials & Manufacturing, Wolfson Centre for Materials Processing; Brunel University; London Uxbridge UK
3. Department of Biotechnology and Microbiology; Karnatak University; Dharwad 580003 Karnataka India
4. H. S. K. College of Pharmacy; Bagalkot 587101 Karnataka India