Facile Green Synthesis of SnO2 NPs Using Vitex altissima (L.) Leaves Extracts: Characterization and Evaluation of Antibacterial and Anticancer Properties
- 35 Downloads
An eco-friendly approach is introduced for the synthesis of SnO2 nanoparticles using the Vitex altissima L. plant extract. Bioinspired mediated synthesis of nanoparticles have been suggested as a very simple, inexpensive, non-toxic and environmental manner. The presence of biomolecules in V. altissima induced the metal salts to form metal oxides. The prepared SnO2 NPs were characterized by XRD, UV–Vis, FT-IR, SEM and TEM Techniques. The PXRD patterns revealed that SnO2 nanoparticles exhibits tetragonal structure and its average crystallite size of SnO2 NPs is found in the range of ~ 10 to 20 nm. The UV–visible absorption spectrum of SnO2 nanoparticles showed absorption band at 257 nm and its band gap was found to be 4.18 eV. FTIR spectrum of green synthesized SnO2 NPs shows the band at 534.22 cm−1 which indicates O–Sn–O stretching vibration modes. The morphological features of SnO2 nanoparticles were fundamentally dependent up on concentration of V. altissima leaves extract. Green synthesized SnO2 nanoparticles exhibit significant antibacterial activity against pathogenic bacterial strains by agar well diffusion method. Furthermore, the SnO2 NPs shows significant cytotoxic effect on MCF-7 cancerous cell line. This result indicates that, V. altissima leaves extract acts as a reducing agent for the formations of SnO2 NPs with effective biological properties.
KeywordsGreen synthesis SnO2 NPs Antibacterial activity Anticancer activity
The authors are grateful to the UGC-RGNF, New Delhi, Government of India for financial assistance and also thanks for Tumkur University, proving the laboratories for research works are gratefully acknowledged.