Synthesis of silver nanoparticles via green method using ultrasound irradiation in seaweed Kappaphycus alvarezii media

Faried, Miftah; Shameli, Kamyar; Miyake, Mikio; Hajalilou, Abdollah; Kalantari, Katayoon; Zakaria, Zuriati; Hara, Hirofumi; Khairudin, Nurul Bahiyah Ahmad

doi:10.1007/s11164-016-2574-z

Cited by 34 publications

(10 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The zeta potential of GNPs was also investigated ( Figure 1 C). Generally, a zeta value of ±20 mV is needed for colloidal stability of nanoparticles [ 42 ]. The zeta potential of the prepared GNPs was −26 mV, indicating high stability of the particles.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Gold Nanoparticles by Using Green Machinery: Characterization and In Vitro Toxicity

et al. 2021

View full text Add to dashboard Cite

Green synthesis of gold nanoparticles (GNPs) with plant extracts has gained considerable interest in the field of biomedicine. Recently, the bioreduction nature of herbal extracts has helped to synthesize spherical GNPs of different potential from gold salt. In this study, a fast ecofriendly method was adopted for the synthesis of GNPs using fresh peel (aqueous) extracts of Benincasa hispida, which acted as reducing and stabilizing agents. The biosynthesized GNPs were characterized by UV–VIS and Fourier transform infrared spectroscopy, transmission electron microscopy (TEM), and dynamic light scattering. In addition, the in vitro antibacterial and anticancer activities of synthesized GNPs were investigated. The formation of gold nanoparticles was confirmed by the existence of a sharp absorption peak at 520 nm, corresponding to the surface plasmon resonance (SPR) band of the GNPs. TEM analysis revealed that the prepared GNPs were spherical in shape and had an average particle size of 22.18 ± 2 nm. Most importantly, the synthesized GNPs exhibited considerable antibacterial activity against different Gram-positive and Gram-negative bacteria. Furthermore, the biosynthesized GNPs exerted remarkable in vitro cytotoxicity against human cervical cancer cell line, while sparing normal human primary osteoblast cells. Such cytotoxic effect was attributed to the increased production of reactive oxygen species (ROS) that contributed to the damage of HeLa cells. Collectively, peel extracts of B. hispida can be efficiently used for the synthesis of GNPs, which can be adopted as a natural source of antimicrobial and anticancer agent.

show abstract

Section: Resultsmentioning

confidence: 99%

Synthesis of Gold Nanoparticles by Using Green Machinery: Characterization and In Vitro Toxicity

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In general, all the samples have shown the negative value of zeta potential. According to Faried et al (2016), the negative surface value (more than 30 mV) shows the stability of the E. spiralis/Ag-NPs colloid. The previous study, reporting on biosynthesized silver nanoparticles using other plant extracts, is summarized in Table 1.…”

Section: Zeta Potential Analysismentioning

confidence: 99%

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

et al. 2020

Self Cite

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

“…The stability of Au-NPs was performed using zeta potential. A zeta value of ±30 mV is needed for a suspension to be physically stable while ±20 mV is necessary for a combined electrostatic and steric condition [32]. The zeta potential results for pure G. mangostana peel extract are −14.68 mV, whereas the reading of Au-NPs formed using the extract reduced to −20.82 mV ( Figure 5).…”

Section: Zeta Potential Studymentioning

confidence: 99%

Green Synthesis of Gold Nanoparticles Using Aqueous Extract ofGarcinia mangostanaFruit Peels

Lee

Shameli

Miyake

et al. 2016

Journal of Nanomaterials

Self Cite

132

View full text Add to dashboard Cite

The synthesis of gold nanoparticles (Au-NPs) is performed by the reduction of aqueous gold metal ions in contact with the aqueous peel extract of plant, Garcinia mangostana (G. mangostana). An absorption peak of the gold nanoparticles is observed at the range of 540-550 nm using UV-visible spectroscopy. All the diffraction peaks at 2 = 38.48 ∘ , 44.85 ∘ , 66.05 ∘ , and 78.00 ∘ that index to (111), (200), (220), and (311) planes confirm the successful synthesis of Au-NPs. Mostly spherical shape particles with size range of 32.96 ± 5.25 nm are measured using transmission electron microscopy (TEM). From the FTIR results, the peaks obtained are closely related to phenols, flavonoids, benzophenones, and anthocyanins which suggest that they may act as the reducing agent. This method is environmentally safe without the usage of synthetic materials which is highly potential in biomedical applications.

show abstract

Synthesis of silver nanoparticles via green method using ultrasound irradiation in seaweed Kappaphycus alvarezii media

Cited by 34 publications

References 38 publications

Synthesis of Gold Nanoparticles by Using Green Machinery: Characterization and In Vitro Toxicity

Synthesis of Gold Nanoparticles by Using Green Machinery: Characterization and In Vitro Toxicity

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

Green Synthesis of Gold Nanoparticles Using Aqueous Extract ofGarcinia mangostanaFruit Peels

Contact Info

Product

Resources

About