Plant Extract Mediated AgNps Synthesis in Averrhoa bilimbi and Syzygium cumini Leaf Extract, their Characterization and Antioxidant Potential Assessment

The approach of green synthesis of silver nanoparticles was focused in the present work using leaf extract of two medicinal plants, Averrhoa bilimbi L. and Syzygium cumini L. in different intensities of sunlight. The method is light sensitive, simple, eco-friendly and quick for the synthesis of AgNPs from leaf extracts. These plants extract mediated SNP’s were comparatively characterized and evaluated for their antioxidant properties independently. The synthesized AgNPs were characterized by UV-spectroscopy, Nanoparticle Tracking Analysis (NTA),X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Fourier Transformed Infrared spectrum (FTIR) analysis. The UVspectra showed maximum absorbance at 430 nm, NTA analysis shows 20 nm average sizes of AgNPs synthesized in A. bilimbi and 50 nm size in S. cumini leaf extract respectively. XRD analysis showed four Bragg’s reflection planes of the metallic silver in the 2θ range of 30º-80º and indexed as (111), (200), (220) and (311). TEM analysis revealed spherical shape of synthesized AgNPs in both the samples with similar diameter as recorded in NTA analysis. FTIR spectra indicates characteristic of the hydroxyl functional group in alcohols and phenolic compounds. The radical scavenging activity of silver nanoparticle was evaluated using DPPH assay. AgNPs samples of A. bilimbi and S. cumini showed notable scavenging potential indicating the ability of plant extract mediated AgNPs as a free radical scavenger. Essential Oil, Flower, Plant, Nature, Beauty, Blossom

Comments

Post a Comment

Popular posts from this blog

Synthesis Characterization and Evaluation of Novel Substituted Azole Derivatives

Image
Benzimidazole is a very stable nucleus and the derivatives of 2-methyl benzimidazole may show different and better biological activity. Thepresence of the thiazolidinone ring in a benzimidazole derivative enhances its antimicrobial activity. 2-methyl benzimidazole derivative are formed by the condensation of o-phenylenediamine with acetic acid. Combination of two or more active moieties into one is a common procedure, can result in augmenting the activity and removes untoward side effects. Hence, the present work focuses on synthesis of potent antimicrobial benzimidazole derivatives by the condensation of Schiff's bases of 2-methyl benzimidazole moiety with thiomalic acid affording the thiazolidinone ring and to study their antimicrobial activity. In antibacterial activity (Staphylococcus aureus and Escherichia coli), it shows that compound TE6 is the most active compound and in antifungal activity (Candida albicans), TE3 & TE4 are found to be most active.
Read more

Reuse of Treated Wastewater of the City of Salé in Agriculture

Image
The city of Salé produces about 24 millions m3 /year of wastewater. The majority of this water is discharged directly into the Atlantic coast and Bouregreg estuary without any treatment. To preserve the quality of the receiving waters. treating wastewater and reusing it in agricultureproves very interesting. The objective of this study is thus to investigate the treatment and recycling of wastewater in agriculture. We are particularly interested in studying the growth of the stem and the average number of leaves in order to prove the positive effects of reusing treated wastewater in agriculture as compared to untreated wastewater. To achieve this objective. we have investigated the irrigation of the broad bean by three types of water: Untreated wastewater (UW). Well water (WW) and biologically treated wastewater (TW).
Read more

Computational Analysis of Physico Chemical Properties of Beta Asarone

Image
The variation in the Physico Chemical properties of Beta Asarone when the temperature is raised is studied here. The Solvent effect has alsobeen calculated with 2 solvents-water and ethanol by (Polarizable continuum Model (PCM) method where a solute cavity is created by a set ofover lapping spheres and computes the energy in solution. The electrostatic interactions of molecules are studied using their Mulliken charge distribution. SCF Energy, Molecular electrostatic Potential mapping, Dipole moment, Ionization Potential and Thermal properties are also studied. Beta Asarone which is the reported toxic constituent of Acorus calamus might undergo variations with higher temperature and also when it is in solution. The study of variations in solution is challenging and here the quantum mechanical calculations are performed in two different solutions to test for any variations of Beta Asarone in solution.
Read more