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Silver oxide nanoparticles exhibit distinctive material and biotic properties that contain passionate research impact as vital applications in the pharmaceutical, biomedical, paper and textile industries. The goal of the current task is to synthesize AgNPs through a facile, low-cost, environmentally friendly route. In this method, we use the aqueous leaf extract of Scoparia dulcis Linn, found in the Western Ghats region, because the use of an aqueous medium is critical for reducing time and minimizing the possibility of side effects. The synthesized Ag nanoparticles were evaluated using UV-Visible, FTIR technique, scanning electron microscopy (SEM) with EADX, transmission electron microscopy (TEM), X-ray powder diffraction (XRD). Results confirmed that UV-visible spectroscopic analysis showed the absorbance peak at 460 nm, which implies the formation of silver nanoparticles. The FTIR spectrum aimed to such that biomolecules involved in wrapping and binding AgNPs synthesized by the plant extract. SEM and TEM are used to visualize the size and shape of nanoparticles. The XRD analysis revealed spherical structures with an average grain size of 21nm and a diameter range of 2 to 20nm. The EDAX study also exhibits the presence of 86.34 % Silver and 13.6 % Oxygen. Alzheimer's disease symptoms were controlled with a drug known as an acetylcholinesterase inhibitor. The in vitro acetylcholinesterase inhibitory activity of the AgNPs from Scoparia dulcis plant extract was evaluated using an Ellman's test with an IC50 value of 149µg/ml. The generated nanoparticles significantly inhibit AChE. The SD-AgNPs were examined for antioxidant activity via the DPPH and ABTS assays having IC50 values of 73.29μg/ml and 55.29μg/ml, respectively. [ABSTRACT FROM AUTHOR]

In recent year green and eco-friendly synthesis of metal nanoparticles plays an important role in nanotechnology, medical science, industries, ceramics etc. The manuscript focuses on the green and facile synthesis of AgNPs from aqueous solution of leaf of Cassia fistula. UV-Visible spectra confirm the bio-formation of AgNPs at 412 nm with the witness of change in colour. Synthesized silver nanoparticle characterized further by FTIR, SEM, EDX and XRD spectroscopic technique. The shape of AgNPs is observed to be like oval, triangular and cylindrical respectively. EDX analysis confirmed the elemental percentage of silver 93.02%. FTIR shows shifting in bands from lower side to upside. The biosynthesized AgNPs shows antibacterial activity against E. coli and B. subtilis pathogens and it was found that AgNPs were more effective against E. coli and B. subtilis bacteria. The method used in this study for the biosynthesis of AgNPs from aqueous extracts of Cassia Fistula was green, reduce harmful chemical with no environmental hazards. [ABSTRACT FROM AUTHOR]

The AgNps are synthesized by green strategy using GMMS plant leaf extract (podapathri plant leaves extract). By excretion of microwave irradiation method, the GMMS plant leaf extract which can act as reducing and stabilizing agent. The development of Ag Nanoparticles was primarily confirmed by altering the color from colorless to yellow. The synthesized Ag Nanoparticles are showing positive antibacterial activity against Stayphylococusaureus, Klebsiella pneumonia, Basillussubtilisand Escherichia coli bacteria were contemplated. The synthesized AgNps divulge virtual anticancer activity on HeLa cells (A549). The particles are very much isolated from one another and did not display any accumulation; this shows the powerful covering nature of GMMS plant leaf extrication (the Podapathri plant leaves separate). Further incorporated AgNps thoroughly characterized by Ultraviolet visible spectra, Fourier Transferred infrared spectra (FT-IR), X-Ray diffraction spectroscopy (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ay investigation (EDS), Transmission electron microscopy (TEM) and Dynamic light dispersing assessment (DLS). The crystalline shape of Ag Nanoparticles is clear from XRD examines. The shape and size of the blended Ag Nanoparticles were examined by TEM studies, The Ag Nanoparticles Size appropriation scatter and the normal size of Ag NPs were discovered to be 18 ± 2nm in size. [ABSTRACT FROM AUTHOR]

Plant mediated biosynthesis of nanoparticles is going important due to simple processes and non-toxic materials utilization. Rhizophora stylosa (RS) mangrove leaf extract was successfully used as a bioreductor in the production of AgNPs by varying the concentration of silver nitrate and the amount of extract. Leaf extract is made by dissolving 10 grams of dried leaf powder in 100 ml double-distilled water (DDW). The concentration of silver nitrate was variable by 1,5, 10 mM with different amounts of leaf extract. The UV-Vis absorption spectrum of colloid in the range between 439-453 nm confirmed that AgNPs have been successfully synthesized. FT-IR absorption band shows the feasible biomolecules of Rhizophora stylosa responsible for the production of silver nanoparticles were amine, alcohol, phenol, alkyl halide, and aromatic combinations groups. The XRD pattern regulates that the synthesized AgNPs were in a face-centered cubic (fcc) crystal structure with an average size of 25 nm. TEM images informed that the synthesized AgNPs have a spherical shape with a size range between 9 to 57 nm. The average size of the nanoparticles was 30 nm. The solution of stable silver nanoparticle colloid from 1 until 3-month incubation. AgNPs have good antibacterial and antioxidant activity compared to pure plant extract. [ABSTRACT FROM AUTHOR]

In the storyline of metal nanoparticles, green synthesis is emerging at a very fast pace. In this experimentation phenomena, nanoparticles of Titanium dioxide were coalesced using an extract solution of oscimum sanctum herba as a bioreductant. This is novel and interesting method for synthesis of TiO2 nanoparticles. The prepared titanium dioxide nanoparticles were distinguished using ultraviolet-visible spectroscopy (UV-VIS), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM). The girth range of TiO2 nanoparticles was evaluated to be in the range of 90-100 nm. Moreover, the reaction which was alkaline by behavior of the solution (pH = 8) resulted in the increase in absorbance (at 570 nm and 490 nm), which sparges the growth of the number of TiO2 nanoparticles in the studied solution. The microscopic technique showed that the diameter of TiO2 was in the range of 6-10 nm but with little agglomeration. Also, its Antibiofilm activity was accessed with correlation to optical densities, biofilm formation capability of microbes make their distortion tedious but fighting strategy of nanoparticles could be a revolution in antibacterial investigations 450 µg/l of nanoparticles from both the extracts targeted the biofilms of E.coli. [ABSTRACT FROM AUTHOR]

A new eco-friendly green synthesized silver nanoparticles doped slaked lime was developed as an adsorbent for the removal of basic dyes from aqueous solution. Silver nanoparticles were synthesized through a green route using pomegranate peel and doped with slaked lime. Its applicability in removing basic green 4 dye from aqueous solution was evaluated in a batch process. The effect of control variables such as initial dye concentration, adsorbent dose, pH, agitation time and temperature on the removal of basic green 4 by silver doped slaked lime was analyzed. The experimental data were fitted to classical isotherms such as Langmuir, Freundlich and Temkin. The reaction kinetics was examined by interpreting the equilibrium data using pseudo first order, pseudo-second order and intraparticle diffusion equations. The thermodynamic data were examined for feasibility in the potential application on an industrial scale. These studies have proved that rate of adsorption of basic green 4 is excellent and rapid on silver nanoparticles doped slaked lime in which silver nanoparticles induce a local dipole field that enhances adsorption of dye molecules on a rapid scale. [ABSTRACT FROM AUTHOR]

The present study was carried out to the green synthesis of ZnO nanoparticles and investigation of its antibacterial activity. Rosa indica leaves is of considerable interest and is a well-known compound because of its show antioxidant, antidiabetic, anti-inflammatory, antimicrobial activities etc . In the present study focuses on the Green synthesis of ZnO nanoparticles by sodium hydroxide, Zinc acetate and biocomponents of leaves of Rosa indica in the reaction mixture was observed in the precipitate from, which proved the formation of ZnO nanoparticles. Further, the green synthesized ZnO nanoparticles were characterized UV-Vis spectrophotometer, XRD analysis, FTIR, DLS, SEM with EDX. this all analysis shows the confirm the nanoparticles .the ZnO nanoparticles show particles size 10nm through DLS analysis. Antibacterial activity of the ZnO nanoparticles was evaluated by testing against Gram-negative(E.coli) and Gram-positive (S.aureus) bacteria. The antibacterial activity of the Synthesized ZnO nanoparticles was found to be more effective against Gram-positive bacteria (S.aureus). [ABSTRACT FROM AUTHOR]

Silver nanoparticle (Ag-np) was successfully synthesized by using the simple green chemistry method. Its antibacterial activity was studied against Staphylococcus aureus and Escherichia coli according to agar well diffusion method. The green synthesis was carried out by mixing the silver nitrate, glucose, and starch as precursors at 90°C for 4 hours. The UV-Vis spectra show the characteristic of spherical Ag-np in the range of 410-425 nm and it is confirmed by TEM image. The Ag-np has an average diameter of 8.41 ± 4.37 nm. As the reductant mole composition increases, the SPR decreases and shifts to red due to the further growth of the Ag-np. When the stabilizer composition increases, the SPR intensity also increases and shifts to red. The formed Ag-np is stable even after one-month synthesis. The antibacterial test on the Ag-np was carried out against gram-positive bacteria (Staphylococcus aureus) and gram-negative bacteria (Escherichia coli). The result shows that a higher concentration of Ag-np is required to kill Staphylococcus aureus compared to Escherichia coli. [ABSTRACT FROM AUTHOR]

Synthesis of silver nanoparticles with suitable attributes is important for its successful application. Green methods of synthesis have many advantages as compared to commonly used chemical and physical methods. Biopolymers provide a suitable condition for the synthesis, growth, and stability of nanoparticles. A biopolymer which does not put pressure on resources, biocompatible obtained as waste and easily available has the potential for application in the synthesis of AgNP. Biopolymer which is a waste from paper manufacturing process has been employed to synthesize AgNP, and the synthesis has been confirmed by UV-Vis spectroscopy. The role of the biopolymer in the synthesis of stable AgNP has been confirmed by FTIR and TEM. [ABSTRACT FROM AUTHOR]