Published Paper


Bio inspired Synthesis of Silver Nanoparticles from Terminalia Chebula Leaves Extract and Evaluation of their Antibacterial Activity

Mandheer Kaur , Deepak Sharma, Chaitnyajit Singh, Palki Sahib Kaur
India
Page: 106-114
Published on: 2024 March

Abstract

Metallic nanoparticles have unique properties that make them an effective medication delivery mechanism. Their shape, size, particle distribution, and volume to surface area ratio set them apart from other compounds and elements. Recently, there has been a significant focus on the potential antibacterial and therapeutic properties of metallic nanoparticles. This paper presents a methodology for the production of silver nanoparticles (TC_AgNPs) by a green approach, utilising an aqueous extract derived from the leaves of Terminalia chebula (T. chebula). The extract serves the dual purpose of reducing and stabilising the nanoparticles. The confirmation of TC_AgNPs synthesis was achieved by the observation of a brownish-yellow colour, and this was afterwards corroborated by using UV-Visible spectroscopy. The spectroscopic analysis indicated the presence of a single absorption peak at a wavelength of 420 nm. The synthesised TC_AgNPs were subjected to ATR analysis in order to identify the functional groups present on the surface. Additionally, zeta analysis was performed to quantify the particle size and distribution. The extract of T. chebula leaves was subjected to screening for a range of phytochemicals, including flavonoids, alkaloids, terpenoids, amides, and aldehydes. The study of zeta values indicated that the mean size of TC-AgNPs was 58.12 nm, with a zeta potential of -30.2 mV, suggesting a favourable level of stability. The antibacterial investigation demonstrated the efficacy of TC-AgNPs against both Gram-negative Escherichia coli MTCC 452 and Gram-positive Staphylococcus aureus MTCC 737. The determination of the minimum inhibitory concentration (MIC) was conducted in order to evaluate the efficacy of TC-AgNPs. Overall, our findings demonstrate the eco-friendly synthesis of TC-AgNPs with remarkable antibacterial activity, making them a promising candidate for further development as a therapeutic agent.

 

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