Essential oil mediated synthesis of silver nanocrystals for environmental, anti-microbial and antioxidant applications

Materials Science & Engineering. C, Materials for Biological Applications
Vidya VilasJoseph Mathew

Abstract

Our quest for a green, non-toxic and environmentally benign synthetic design for the fabrication of metal nanoparticles has led to the use of essential oil present in plant parts as the bioreductant. In this report, silver particles at nanoscale have been synthesized using essential oil present in the leaves of Coleus aromaticus at physiological pH and at 373 K. UV-vis spectra of the colloid display strong plasmon bands centred around 396-411 nm, characteristic of silver nanoparticles. Comparative studies of the FTIR spectra of essential oil and silver nanoparticles reveal the involvement of terpenes and their phenolic derivatives in reduction and subsequent stabilization. TEM micrographs and XRD pattern show the formation of 26 and 28 nm sized face centred cubic structured crystalline nanospheroids with intermittent formation of nanorods. The phytosynthesized silver nanoparticles are found to be effective in degrading hazardous organic pollutants including methyl orange, methylene blue, eosin yellowish and para nitro phenol within a span of a few minutes. Dose dependant antibacterial activity of the biogenic nanosilver against pathogenic Gramme-negative Escherichia coli (ATCC 25922) and Gramme-positive Staphylococcus aureus (A...Continue Reading

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Citations

Jul 17, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Zdenka BedlovičováAneta Salayová
Oct 1, 2019·Global Challenges·Sadiya Anjum, Bhuvanesh Gupta
Jan 1, 2020·Antioxidants·Ibrahim KhalilAli Seyfoddin
Jun 9, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Sin-Yeang TeowKamyar Shameli
Nov 20, 2020·International Journal of Biological Macromolecules·Luis Alberto Zevallos TorresCarlos Ricardo Soccol
Oct 13, 2020·International Journal of Biological Macromolecules·Cong LiuDong Liu

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