Synthesis of Ag/Fe2O3 nanocomposite from essential oil of ginger via green method and its bactericidal activity

Al‐Zahrani, Fatimah A. M.; AL-Zahrani, Nourah A.; Alghamdi, Sameera A.; Lin, Long; Salem, Salem S.; El‐Shishtawy, Reda M.

doi:10.1007/s13399-022-03248-9

Cited by 21 publications

(5 citation statements)

References 65 publications

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“…The spectra of Cm-AgNPs were closely identical to those of the Cm extract. However, some new peaks, such as 1544 cm −1 and 1361 cm −1 seen in the spectra of Cm-AgNPs, arose from stretching vibrations of NH and OH amines and alcohols, while the peaks evident at 604 cm −1 and 550 cm −1 could be attributed to the bending vibrations caused by Ag, which is in agreement with previous studies 6 , 27 , 69 , 70 .] The variations in the position of the peaks in the Cm-AgNPs spectrum imply that the biomolecules present in the Cm-extract have efficiently supported the formation of Cm-AgNPs through the reduction process.…”

Section: Discussionsupporting

confidence: 91%

“…The green synthesis method employs different microorganisms like algae 18 , fungi 19 , and bacteria cells 20 , or extracts from different parts of plants, including leaves 21 , 22 , shoots 23 , fruits, and fruit peels 24 – 26 . Green synthesis of nanoparticles using plants has several merits over other biological methods because it is a hassle-free, innocuous method that incorporates plant extracts and does not require sterile conditions or the arduous maintenance procedures that are required with other biogenic methods 27 – 29 . The aqueous plant extracts, with their vast variety of phytochemicals, function as stabilizers, capping agents, and reducers and can readily reduce metals to metal nanoparticles 29 , 30 .…”

Section: Introductionmentioning

confidence: 99%

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Antimicrobial and antioxidant potential of the silver nanoparticles synthesized using aqueous extracts of coconut meat (Cocos nucifera L)

Rizwana,

Aljowaie,

Al Otibi

et al. 2023

Sci Rep

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Human pathogenic fungi and bacteria pose a huge threat to human life, accounting for high rates of mortality every year. Unfortunately, the past few years have seen an upsurge in multidrug resistance pathogens. Consequently, finding an effective alternative antimicrobial agent is of utmost importance. Hence, this study aimed to phytofabricate silver nanoparticles (AgNPs) using aqueous extracts of the solid endosperm of Cocos nucifera L, also known as coconut meat (Cm). Green synthesis is a facile, cost-effective and eco-friendly methods which has several benefits over other physical and chemical methods. The synthesized nanoparticles were characterized by UV–Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and dynamic light scattering (DLS). The Cm-AgNPs showed a UV–Vis peak at 435 nm and were crystalline and quasi-spherical, with an average size of 15 nm. The FTIR spectrum displayed functional groups of phenols, alkaloids, sugars, amines, and carbonyl compounds, which are vital in the reduction and capping of NPs. The antibacterial and anticandidal efficacy of the Cm-AgNPs was assessed by the agar-well diffusion method and expressed as a zone of inhibition (ZOI). Amongst all the test isolates, Staphylococcus epidermidis, Candida auris, and methicillin-resistant Staphylococcus epidermidis were more susceptible to the NPs with a ZOI of 26.33 ± 0.57 mm, 19.33 ± 0.57 mm, and 18 ± 0.76 mm. The MIC and MFC values for Candida spp. were higher than the bacterial test isolates. Scanning electron microscopic studies of all the test isolates at their MIC concentrations showed drastically altered cell morphology, indicating that the NPs could successfully cross the cell barrier and damage the cell integrity, causing cell death. This study reports the efficacy of Cm-AgNPs against several Candida and bacterial strains, which had not been reported in earlier studies. Furthermore, the synthesized AgNPs exhibited significant antioxidant activity. Thus, the findings of this study strongly imply that the Cm-AgNPs can serve as promising candidates for therapeutic applications, especially against multidrug-resistant isolates of Candida and bacteria. However, further investigation is needed to understand the mode of action and biosafety.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Antimicrobial and antioxidant potential of the silver nanoparticles synthesized using aqueous extracts of coconut meat (Cocos nucifera L)

Rizwana,

Aljowaie,

Al Otibi

et al. 2023

Sci Rep

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“…A previous study showed that silver particles have a good antimicrobial effect on harmful bacteria, whether they are Gram-positive or Gram-negative bacteria [ 43 ]. The antibacterial activity of Ag/Fe 2 O 3 nanocomposite was investigated in earlier investigations, and it showed good activity against Gram-negative and Gram-positive bacteria [ 34 , 40 , 76 ]. Ag/Fe 2 O 3 has an antibacterial impact on bacteria because it damages cell walls, disrupts structural proteins, inactivates enzymes, inhibits electron transport chains, damages nucleic acids (DNA), and causes oxidative stress brought on by the generation of reactive oxygen species (ROS) [ 41 , 72 , 77 ].…”

Section: Resultsmentioning

confidence: 99%

Green Synthesis and Antibacterial Activity of Ag/Fe2O3 Nanocomposite Using Buddleja lindleyana Extract

et al. 2022

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In the study reported in this manuscript, silver/iron oxide nanocomposites (Ag/Fe2O3) were phytosynthesized using the extract of Buddleja lindleyana via a green, economical and eco-friendly strategy. The biosynthesized Ag/Fe2O3 nanocomposites were characterized using UV-Vis spectrophotometry, FTIR, XRD, TEM, DLS and SEM-EDX analyses. The particulates showed a triangular and spherical morphology having sizes between 25 and 174 nm. FTIR studies on the nanoparticles showed functional groups corresponding to organic metabolites, which reduce and stabilize the Ag/Fe2O3 nanocomposite. The antimicrobial efficacy of the phytosynthesized Ag/Fe2O3 against bacterial pathogens was assessed. In addition, Ag/Fe2O3 exhibited broad spectrum activities against B. subtilis, S. aureus, E. coli, and P. aeruginosa with inhibition zones of 23.4 ± 0.75, 22.3 ± 0.57, 20.8 ± 1.6, and 19.5 ± 0.5 mm, respectively. The Ag/Fe2O3 composites obtained showed promising antibacterial action against human bacterial pathogens (S. aureus, E. coli, B. subtilis and P. aeruginosa), making them candidates for medical applications.

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“…A new and developing environmentally friendly science is the synthesis of nano-materials utilizing bacteria or plants. Many researchers have been synthesizing nano-materials using biological models (Soliman et al 2022a ; Al-Rajhi et al 2022 ; Al-Zahrani et al 2022a , b ). The use of science in nanotechnology to manipulate matter at the atomic level.…”

Section: Introductionmentioning

confidence: 99%

A mini review on green nanotechnology and its development in biological effects

Salem

2023

Arch Microbiol

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The utilization of living organisms for the creation of inorganic nanoscale particles is a potential new development in the realm of biotechnology. An essential milestone in the realm of nanotechnology is the process of creating dependable and environmentally acceptable metallic nanoparticles. Due to its increasing popularity and ease, use of ambient biological resources is quickly becoming more significant in this field of study. The phrase “green nanotechnology” has gained a lot of attention and refers to a variety of procedures that eliminate or do away with hazardous compounds to repair the environment. Green nanomaterials can be used in a variety of biotechnological sectors such as medicine and biology, as well as in the food and textile industries, wastewater treatment and agriculture field. The construction of an updated level of knowledge with utilization and a study of the ambient biological systems that might support and revolutionize the creation of nanoparticles (NPs) are presented in this article.

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Synthesis of Ag/Fe2O3 nanocomposite from essential oil of ginger via green method and its bactericidal activity

Cited by 21 publications

References 65 publications

Antimicrobial and antioxidant potential of the silver nanoparticles synthesized using aqueous extracts of coconut meat (Cocos nucifera L)

Antimicrobial and antioxidant potential of the silver nanoparticles synthesized using aqueous extracts of coconut meat (Cocos nucifera L)

Green Synthesis and Antibacterial Activity of Ag/Fe2O3 Nanocomposite Using Buddleja lindleyana Extract

A mini review on green nanotechnology and its development in biological effects

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