Biosynthesis of Au nanoparticles using olive leaf extract 1st Nano Updates

AbstractThe biological synthesis of gold nanoparticles (AuNPs) of various shapes (triangle, hexagonal, and spherical) using hot water olive leaf extracts as reducing agent is reported. The size and the shape of Au nanoparticles are modulated by varying the ratio of metal salt and extract in the reaction medium. Only 20min were required for the conversion into gold nanoparticles at room temperature, suggesting a reaction rate higher or comparable to those of nanoparticles synthesis by chemical methods. The variation of the pH of the reaction medium gives AuNPs nanoparticles of different shapes. The nanoparticles obtained are characterized by UV–Vis spectroscopy, photoluminescence, transmission electron microscopy (TEM), X-ray diffraction (XRD), FTIR spectroscopy and thermogravimetric analysis. The TEM images showed that a mixture of shapes (triangular, hexagonal and spherical) structures was formed at lower leaf broth concentration and high pH, while smaller spherical shapes were obtained at higher leaf broth concentration and low pH

Journal officiel de la République française. Lois et décrets

22 février 18851885/02/22 (A17,N52).Appartient à l’ensemble documentaire : MAEDIGen0Appartient à l’ensemble documentaire : MAEDI008Appartient à l’ensemble documentaire : MAEDI012Appartient à l’ensemble documentaire : MAEDI006Appartient à l’ensemble documentaire : MAEDI00

Effect of different concentrations of RTX on hTS versus R163K-hTS % activity.

<p>Effect of different concentrations of RTX on hTS versus R163K-hTS % activity.</p

Effect of 1, 2, 3 and 10 mM of compounds (1), (2), (3) and (4) on hTS versus R163K-hTS % activity.

<p>Effect of 1, 2, 3 and 10 mM of compounds (1), (2), (3) and (4) on hTS versus R163K-hTS % activity.</p

Effect of different concentrations of compounds (1), (2), (3) and (4) on IF of R163K-hTS.

<p>Controls contained the enzyme in buffer without any of the test compounds, while blanks were performed using buffer only.</p

Effect of different concentrations of compounds (1), (2), (3) and (4) on IF of hTS.

<p>Controls contained the enzyme in buffer without any of the test compounds, while blanks were performed using buffer only.</p

Correlation between activity inhibition and IF studies of compounds (1), (2), (3) and (4) on R163K-hTS.

<p>Correlation between activity inhibition and IF studies of compounds (1), (2), (3) and (4) on R163K-hTS.</p

Effect of 1, 2, 3 and 10 mM of compounds (1), (2), (3) and (4) on % ΔF of hTS versus R163K-hTS.

<p>Effect of 1, 2, 3 and 10 mM of compounds (1), (2), (3) and (4) on % ΔF of hTS versus R163K-hTS.</p

Effect of different concentrations of RTX on % ΔF of hTS versus R163K-hTS.

<p>Effect of different concentrations of RTX on % ΔF of hTS versus R163K-hTS.</p