Green synthesis of silver nanoparticles using a mountain plant extract

ROUSTA, Mohammad Hasan; Ghasemi, Nahid

doi:10.33224/rrch/2019.64.2.04

Cited by 8 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The phytochemical analysis of A. sieberi revealed that it was rich in amines, carboxylic groups (such as alcohols and phenols), and alkenes. In agreement with these findings, a previous study showed that the FTIR analysis of the leaf extract of A. sieberi had the highest peaks for hydroxyl groups, alkanes, alkenes, amides, and amines [23,24]. In addition, the study conducted by Alotibi and Rizwana (2019) revealed that the methanolic extract of A. sieberi was rich in the functional groups of OH, CH stretching, C=O stretching, and aromatic skeletal stretches, which agreed with the current results as well [25].…”

Section: Discussionsupporting

confidence: 85%

Silver Nanoparticles of Artemisia sieberi Extracts: Chemical Composition and Antimicrobial Activities

Al-Otibi,

Alshammry,

Alharbi

et al. 2023

Plants

View full text Add to dashboard Cite

Background: Artemisia sieberi (mugwort) is a member of the daisy family Asteraceae and is widely propagated in Saudi Arabia. A. sieberi has historical medical importance in traditional societies. The current study aimed to assess the antibacterial and antifungal characteristics of the aqueous and ethanolic extracts of A. sieberi. In addition, the study investigated the effect of silver nanoparticles (AgNPs) synthesized from the A. sieberi extract. Methods: The ethanolic and aqueous extracts and AgNPs were prepared from the shoots of A. sieberi. The characteristics of AgNPs were assessed by UV–visible spectroscopy, transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS). The antibacterial experiments were performed against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, and Pseudomonas aeruginosa. The fungal species used were Candida parapsilosis, Candida krusei, Candida famata, Candida rhodotorula, and Candida albicans. The antibacterial and antifungal characteristics were evaluated by measuring the diameter of growing organisms in Petri dishes treated with different concentrations of either extracts or AgNPs compared to the untreated controls. Furthermore, TEM imaging was used to investigate any ultrastructure changes in the microbes treated with crude extracts and AgNO3. Results: The ethanolic and aqueous extracts significantly decreased the growth of E. coli, S. aureus, and B. subtilis (p < 0.001), while P. aeruginosa was not affected. Unlike crude extracts, AgNPs had more substantial antibacterial effects against all species. In addition, the mycelial growth of C. famata was reduced by the treatment of both extracts. C. krusei mycelial growth was decreased by the aqueous extract, while the growth of C. parapsilosis was affected by the ethanolic extract and AgNPs (p < 0.001). None of the treatments affected the growth of C. albicans or C. rhodotorula. TEM analysis showed cellular ultrastructure changes in the treated S. aureus and C. famata compared to the control. Conclusion: The biosynthesized AgNPs and extracts of A. sieberi have a potential antimicrobial characteristic against pathogenic bacterial and fungal strains and nullified resistance behavior.

show abstract

Section: Discussionsupporting

confidence: 85%

Silver Nanoparticles of Artemisia sieberi Extracts: Chemical Composition and Antimicrobial Activities

Al-Otibi,

Alshammry,

Alharbi

et al. 2023

Plants

View full text Add to dashboard Cite

show abstract

“…The pH of the reaction changes the chemical nature of the extract, which has an effect of changing its performance and rate of reduction and therefore nanoparticle synthesis [36]. The size and shape of silver nanoparticles are affected by the pH of the reaction solution [37][38][39][40]. This was investigated further with the addition of hydrochloric acid (HCl), which did not produce any nanoparticles (Figure 2).…”

Section: Uv-vis Spectra Analysismentioning

confidence: 99%

Full Factorial Design Synthesis of Silver Nanoparticles Using Origanum vulgare

Rigopoulos,

Gkaliouri,

Sakavitsi

et al. 2023

Reactions

View full text Add to dashboard Cite

Green synthesis of silver nanoparticles (AgNPs) involves a reduction reaction of a metal salt solution mixed with a plant extract. The reaction yield can be controlled using several independent factors, such as extract and metal concentration, temperature, and incubation time. AgNPs from Origanum vulgare (oregano) were synthesized in the past. However, no investigations were performed on the combined effects of independent factors that affect the synthesis. In this work, silver nitrate, oregano extract, and sodium hydroxide (NaOH) concentrations were chosen as the independent factors, and full factorial design under Response Surface Methodology was employed. UV–Vis absorbance spectroscopy, X-ray Powder Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR) were used to characterize the nanoparticles. A Voigt function was fitted on the measured UV–Vis spectra. The fitting parameters of the Voigt function, peak wavelength, area, and Full Width at Half Maximum, were used as the responses. A quadratic model was fitted for the peak wavelength and area. The NaOH concentration proved to be the dominant factor in nanoparticle synthesis. UV–Vis absorbance showed a characteristic plasmon resonance of AgNPs at 409 nm. XRD verified the crystallinity of the nanoparticles and FTIR identified the ligands involved.

show abstract

“…Then, the yielded aqueous extract was filtered by whatman filter paper (grade 42-UK, with pore size 20 μ). After that, the sample was placed in the centrifuge (Superspeed Sorvall B-RC2) at the speed of 9000 rpm for 10 min [30]. Finally, the aqueous extract was put in the refrigerator at 4 °C.…”

Section: Physical Methods Includingmentioning

confidence: 99%

Bio-fabrication of silver nanoparticles using naturally available wild herbaceous plant and its antibacterial activity

Mohammadi

Ghasemi

Ramezani

2020

Eurasian Chem. Commun.

View full text Add to dashboard Cite

The irrational use of antibiotics has caused an increment in bacterial resistance to these compounds, leading humans to go in quest of alternative effective antimicrobial factors with less side effects as compared to antimicrobial compounds with less unwanted side effects. Silver Nanoparticles (AgNPs) could be considered as one of the most important antibacterial agents. In this study, the aqueous extract of Fumaria officinalis leaf was prepared and used in optimal conditions(pH=10, extract volume=8, metal salt concentration=10 mM, temperature 100 °C and time=120 min) for reduction of silver ions and synthesis of AgNPs. The resulted AgNPs were characterized by different techniques including UV-Vis, and XRD, FESEM, TEM, EDX and FTIR, respectively. Finally, the antibacterial activity of AgNPs on two pathogens (Escherichia coli (PTTC 1707), and Staphylococcus aureus (PTTC 1112)), was investigated using agar disk diffusion and minimum inhibitory concentration (MIC) test. The extract of Fumaria officinalis displayed high potential to synthesize stable spherical AgNPs in shape with size below 25 nm. The nanoparticles showed considerable antibacterial effect on two tested bacteria. The minimum inhibitory concentration on Escherichia coli and Staphylococcus aureus for AgNPs was 12.5 and 6.25 μg / mL, respectively.

show abstract

Green synthesis of silver nanoparticles using a mountain plant extract

Cited by 8 publications

References 26 publications

Silver Nanoparticles of Artemisia sieberi Extracts: Chemical Composition and Antimicrobial Activities

Silver Nanoparticles of Artemisia sieberi Extracts: Chemical Composition and Antimicrobial Activities

Full Factorial Design Synthesis of Silver Nanoparticles Using Origanum vulgare

Bio-fabrication of silver nanoparticles using naturally available wild herbaceous plant and its antibacterial activity

Contact Info

Product

Resources

About