Synthesis, characterization, and evaluation of the antimicrobial activities of silver nanoparticles from Cyclotrichium origanifolium L.

Abstract

Cyclotricium origanifolium is a plant belonging to the Lamiaceae family and is a species that grows in the Western and Southern Anatolian regions of Turkey. In our study, the antimicrobial activities of silver nanoparticles (AgNP) were investigated through Cyclotricium origanifolium plant extract. Characterization processes of the obtained AgNPs, suitable spectral analysis methods; Uv-Vis was determined by FT-IR, SEM-EDX, XRD. According to the results of the analysis, it was determined that the AgNPs were spherical in shape and had an average diameter of 17.60 nm. The antimicrobial effect of AgNPs was determined by the minimum inhibition concentration (MIC) method. Gram positive as test microorganisms; Staphylococcus aureus, Bacillus subtilis and gram negative; Escherichia coli, Pseudomonas aeruginosa bacteria, and Candida albicans fungal pathogen species were used. The suppression of microorganism growth was investigated by comparing the efficacy of standard antibiotics used in our study with AgNPs produced by the green synthesis method. It has been observed that the obtained AgNPs have a very strong effect on gram-positive B. subtilis and gram-negative E. coli bacteria, and are more effective against C. albicans than the normal antifungal drug. It was determined that the antimicrobial activity of AgNPs produced from C. origanifolium L. plants showed a stronger effect than standard antibiotics.

Biosynthesis, characterization, and investigation of antimicrobial and cytotoxic activities of silver nanoparticles using Solanum tuberosum peel aqueous extract

“…The band at 453 nm, which is thought to be caused by d-d transitions of the Ag + ion, fully vanished following the green synthesis method. This absence demonstrated that the Ag + cation was fully diminished [ 20 ].

Fig.

…”

“…The mixture's pH was adjusted to 7.0 by adding 1 N sodium hydroxide solution. The maximum absorbance of the produced ST-Ag NPs was measured using a spectrophotometer (Agilent CARY 60) between 300 and 800 nm [ 20 , 23 ]. Transmission electron microscopy (HITACHI 7700), electron dispersive X-ray (Quanta FEG240), field emission scanning electron microscopy (FE-SEM) (Quanta FEG240), atomic force microscopy (AFM), and X-ray diffraction analysis (Rad B-DMAX II) were used to determine the size, surface distribution, morphology, and crystal structure of Ag NPs.…”

Phytochemical Screening, Antimicrobial, Antipellicle and Antibiofilm Activities of the Root of Alpine Medicinal Plant (<i>Arnebia euchroma</i> (Royle) I.M.Johnst.)

“…Its mode of action can be associated with various mechanisms such as adhesion to microbial cells, penetration into cells, generation of ROS (reactive oxygen species) and free radicals, or modulation of microbial signal transduction pathways [60,61]. It is known that flavonoids, alkaloids, polyphenols, and terpenoids are the main metabolites used in phytonanoparticle production due to their strong reducing properties [62]. Doulah et al [63] confirmed that A. fimbriopetala, A. linearifolia, A. garandiflora, and A. tubata species growing wild in Iran have a slightly significant effect on fungi.…”

Cytotoxic potential of selenium nanoparticles (SeNPs) derived from leaf extract of Mentha longifolia L.

“…SeNPs can be generated by physical, chemical and biological (green synthesis) approaches Aktepe et al (2022). Physical and chemical procedures necessitate the use of costly and ecologically hazardous severe poisonous substances (Hatipoglu, 2021;Baran et al 2021).…”