Biogenic method of cerium oxide nanoparticles synthesis using wireweed (Sida acuta Burm.f.) and its antibacterial activity against Escherichia coli

Cerium oxide nanoparticles (CeO2 NPs) have a wide range of applications in different fields, especially in biomedical division. Sida acuta (S. acuta) is a flowering plant used in traditional medicine and has several active phytochemicals such as flavonoids, phenolics, steroids, alkaloids and terpeno...

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Bibliographic Details
Published in:Materials research express 2019-08, Vol.6 (10), p.105026
Main Authors: Senthilkumar, R P, Bhuvaneshwari, V, Malayaman, V, Chitra, G, Ranjithkumar, R, Dinesh, K P B, Chandarshekar, B
Format: Article
Language:English
Subjects:
antibacterial activity
FESEM
FTIR
nanoparticles
TEM
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Summary:Cerium oxide nanoparticles (CeO2 NPs) have a wide range of applications in different fields, especially in biomedical division. Sida acuta (S. acuta) is a flowering plant used in traditional medicine and has several active phytochemicals such as flavonoids, phenolics, steroids, alkaloids and terpenoids compounds. In the present study, biogenesis of Cerium oxide nanoparticles was carried out using the aqueous leaf extract of Sida acuta. CeO2 NPs synthesized by biogenic approaches (Green synthesis) that have advantages over conventional methods involving chemical agents associated with environmental toxicity. Plant extracts contain primary and secondary metabolites, which act as reducing and capping agents forming stable and shape-controlled CeO2 NPs. The results of green synthesized CeO2 NPs in XRD and TEM analysis indicates spherical in shape and cubic fluorite structure with an average particles size of 8.2 nm. EDS analysis revealed the presence of cerium (60.54%), oxygen (25.36%). The FTIR spectrum indicated the presence of functional groups. FESEM image of CeO2 NPs treated Escherichia coli culture showed mechanism of the CeO2 NPs bactericidal activity is discussed in terms of CeO2 NPs interaction with the morphological changes and damages in the surface of the cell membrane and thus can be effectively used in biomedical applications.
ISSN:2053-1591
2053-1591
DOI:10.1088/2053-1591/ab37b9