Green synthesis and antimicrobial activity of monodisperse silver nanoparticles synthesized using Ginkgo Biloba leaf extract

Ren, Yan; Yang, Hui; Wang, Tao; Wang, Chuang

doi:10.1016/j.physleta.2016.09.029

Cited by 74 publications

(37 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The DLS (Dynamic Light Scattering) and stability study of the nanoparticle shown by Zeta potential analysis also divulged a constant size of 20 nm (nanometer) in Scanning Electron Microscopy with an effective surface area which was less than the Silver nanoparticles synthesized using gallic acid in an aqueous chemical reduction method with an average sizes of 7, 29, and 89 nm respectively by Castanon et al 2008 [19,20]. However, the results were found to be in consonance with the findings by Yang et al 2016 [21] and Shankar et al 2004 [22] which showed the synthesis of small and stable silver nanoparticles with good antibacterial activities. The qualitative estimation of the plant extract showed the presence of different phytoconstituents which are constantly involved in reduction reaction to synthesize eco-friendly nanoparticles [23][24][25][26][27].…”

Section: Discussionsupporting

confidence: 58%

In Vitro Antibacterial Activity of Biosynthesized Silver Nanoparticles From Ethyl Acetate Extract of Hydrocotyle Sibthorpiodes Against Multi Drug Resistant Microbes.

Garg

Devi

2017

Asian J Pharm Clin Res

View full text Add to dashboard Cite

Objectives: Hydrocotyle sibthorpiodes is known to contain several phytoconstituents which are constantly involved in the formation of Silver nanoparticles that may affect several multi-drug resistant microbes. Therefore, the study was undertaken to evaluate the efficacy of different concentration of nano silver solution on three bacterial isolates. It was also aimed to qualitatively assess the different phytoconstituents responsible for the synthesis.Methods: Three bacterial isolates of Klebsiella pneumonia, Pseudomonas aeroginosa and Staphylococcus aureus were identified. Synthesis of AgNPs with different concentration (2/4/6/8/10μl/ml) was done and applied to the selected isolates. The phytochemical compounds of the ethyl acetate extract were assayed by several colored reactions qualitatively. Results:The size and stability biosynthesis of the metallic silver nanoparticles were confirmed by photophysical characterization as well as SEM (Scanning Electron Microscopy), XRD (XRay Diffraction), Zeta potential and DLS (Dynamic Light Scattering) with an average size of 13.37 ±10 nm. The increasing concentration of the particle solution showed significant inhibition zone for all the three isolates viz., Klebsiella pneumonia, Pseudomonas aeroginosa and Staphylococcus. aureus showing the value of 3.0±0.17, 2.7±0.32 and 3.6±0.57 respectively for 10 μl/ml concentration. Phytochemical screening of the whole plant extract also revealed an array of bioactive compounds which may have an effective role in the reduction process. Conclusion:The study demonstrated a simple, efficient and eco-friendly synthesis of stable silver nanoparticles from the ethyl acetate extract of Hydrocotyle sibthorpiodes having fairly superior antimicrobial activity against human pathogens.

show abstract

Section: Discussionsupporting

confidence: 58%

In Vitro Antibacterial Activity of Biosynthesized Silver Nanoparticles From Ethyl Acetate Extract of Hydrocotyle Sibthorpiodes Against Multi Drug Resistant Microbes.

Garg

Devi

2017

Asian J Pharm Clin Res

View full text Add to dashboard Cite

show abstract

“…A study by Ravichandran et al (2016) reported that the average size of Ag-NPs obtained is 38 nm using an extract concentration of 1.5 mL of 10% Artocarpus altilis leaf extract, 1.0 mM of silver nitrate, reaction time of 60 min, pH 7, and a temperature of 70 • C. The prepared Ag-NPs showed that Escherichia coli and Pseudomonas aeruginosa are more susceptible to Ag-NPs than Staphylococcus aureus. In another study, Yan-yu et al (2016) conducted the biosynthesis of Ag-NPs using Ginkgo biloba leaf extract, the reduction of Ag + ions to Ag 0 was influenced by changing the silver nitrate concentration. A well-dispersed Ag-NP colloid was obtained at a lower silver nitrate concentration (0.02 M) of pH = 8.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesized Silver Nanoparticles by Aqueous Stem Extract of Entada spiralis and Screening of Their Biomedical Activity

et al. 2020

View full text Add to dashboard Cite

Silver nanoparticles (Ag-NPs) have been established as antibacterial nanoparticles and have been innovatively developed to overcome the occurrence of antibiotic resistance in the environment. In this study, an environmentally friendly and easy method of the biosynthesis of Ag-NPs plants, mediated by aqueous extract stem extract of Entada spiralis (E. spiralis), was successfully developed. The E. spiralis/Ag-NPs samples were characterized using spectroscopy and the microscopic technique of UV-visible (UV-vis), X-ray Diffraction (XRD), Field Emission Transmission Electron Microscope (FETEM), zeta potential, and Fourier Transform Infrared (FTIR) analyses. Surface Plasmon Resonance (SPR) absorption at 400-450 nm in the UV-vis spectra established the formation of E. spiralis/Ag-NPs. The crystalline structure of E. spiralis/Ag-NPs was displayed in the XRD analysis. The small size, around 18.49 ± 4.23 nm, and spherical shape of Ag-NPs with good distribution was observed in the FETEM image. The best physicochemical parameters on Ag-NPs biosynthesis using E. spiralis extract occurred at a moderate temperature (∼52.0 • C), 0.100 M of silver nitrate, 2.50 g of E. spiralis dosage and 600 min of stirring reaction time. The antibacterial activity was tested against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, and Proteus vulgaris using an antibacterial disk diffusion assay. Based on the results, it is evident that E. spiralis/Ag-NPs are susceptible to all the bacteria and has promising potential to be applied in both the industry and medical fields.

show abstract

“…33 However, Ginkgo biloba leaf extract is composed of lactones, avonoids, polyphenol, acids and polysaccharide. 32 These substances have different reducing power, 34 which may lead to broad size distribution of metal nanoparticles. Flavonoids and polyphenol in the extract are good for the formation of metal nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Ginkgo biloba leaf polysaccharide stabilized palladium nanoparticles with enhanced peroxidase-like property for the colorimetric detection of glucose

Cui

Lai

et al. 2020

RSC Adv.

View full text Add to dashboard Cite

show abstract

Green synthesis and antimicrobial activity of monodisperse silver nanoparticles synthesized using Ginkgo Biloba leaf extract

Cited by 74 publications

References 23 publications

In Vitro Antibacterial Activity of Biosynthesized Silver Nanoparticles From Ethyl Acetate Extract of Hydrocotyle Sibthorpiodes Against Multi Drug Resistant Microbes.

In Vitro Antibacterial Activity of Biosynthesized Silver Nanoparticles From Ethyl Acetate Extract of Hydrocotyle Sibthorpiodes Against Multi Drug Resistant Microbes.

Biosynthesized Silver Nanoparticles by Aqueous Stem Extract of Entada spiralis and Screening of Their Biomedical Activity

Ginkgo biloba leaf polysaccharide stabilized palladium nanoparticles with enhanced peroxidase-like property for the colorimetric detection of glucose

Contact Info

Product

Resources

About