Biogenic synthesis, characterization and applications of Tellurium nanoparticles from Chicoreus virgineus (Roding, 1798)

Abstract

Nanoparticles will offer a better perspective for the biogenic manner of the future. The green material's reducing agents offer a crucial pathway for the synthesis of metal nanoparticles. A biological method was adopted to develop tellurium mediated nanoparticles with the shell of marine gastropod Chicoreus virgineus. 10.7 g of Tellurium tetrachloride was dissolved in 1 L of the double distilled water to prepare 0.01 M Solution.The nanoparticle synthesis was confirmed by UV-Visible spectroscopy, the absorbance values of the nanoparticles generated were identified and the wavelength around 300nm was observed. The presence of reducing agents is indicated by Fourier Transform Infrared Spectroscopy. FTIR analysis showed the peak values from 3336.35 cm-1 to 708.30 cm-1. Images from atomic force microscopy and scanning electron microscopy were used to display the surface morphology. The rod like structure and spherical, uniform shape of tellurium nanoparticles were observed. The particle size of 21.31 nm was recorded for the synthesized nanoparticles. The antibacterial, antifungal, DPPH scavenging, and hydrogen peroxide scavenging assay activity of the produced nanoparticles was tested. The maximum zone of inhibition was observed against the pathogens viz., Propionibacterium acnes (6.5 mm) and Aspergillus fumigatus (16.5 mm). The highest percentage inhibition of 71.4% for DPPH scavenging activityand 92.12% for hydrogen peroxide assay were observed. Theoutcomes demonstrated that this affordable synthesis found many useful biomedical applications. The current investigation is one of the eco-friendly methods of synthesis and it is an easy method for the synthesis of nanoparticles. These nanoparticles act as an effective antibacterial, antifungal and antioxidant agent. Hence it will show a greater scope in the medicinal field. The nanoparticles derived from marine gastropod Chicoreus virgineus has good biocompatibility. Only few studies have been reported earlier using the marine molluscs.