Discovery of high antibacterial and catalytic activities against multi-drug resistant clinical bacteria and hazardous pollutants by biosynthesized of silver nanoparticles using Stachys inflata extract (AgNPs@SI)

Shirzadi‐Ahodashti, Mina; Hashemi, Zahra; Mortazavi, Yousef; Khormali, Keyvan; Mortazavi‐Derazkola, Sobhan; Ebrahimzadeh, Mohammad Ali

doi:10.1016/j.colsurfa.2021.126383

Cited by 28 publications

(11 citation statements)

References 43 publications

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“…Photo‐degradation is widely used due to its cost‐effectiveness and simplicity. In the photo‐degradation process, organic dyes are oxidized to intermediate species and eventually CO 2 and H 2 O [27–29] …”

Section: Resultsmentioning

confidence: 99%

“…In the photo-degradation process, organic dyes are oxidized to intermediate species and eventually CO 2 and H 2 O. [27][28][29] In recent years, hNFs have received considerable attention in dye decolorization applications due to having metal cation and porous structure. [10,30] In the present work, the photocatalytic behaviour of synthesized hNFs was evaluated by using CR as anionic dye and MB as a cationic dye.…”

Section: Dye Degradation Performance Of Hnfsmentioning

confidence: 99%

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Natural Molecule‐Incorporated Magnetic Organic‐Inorganic Nanoflower: Investigation of Its Dual Fenton Reaction‐Dependent Enzyme‐Like Catalytic Activities with Cyclic Use

et al. 2023

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The functional organic‐inorganic hybrid nanoflowers (hNFs) have recently attracted considerable attention due to enhanced catalytic activity and stability. The main purpose of this study is to synthesize new Fenton reagents and investigate their catalytic activity, dye degradation performance and antimicrobial activity. This magnetic gallic acid nanoflowers (FeGANF) were self‐assembled via incorporating magnetic nanoparticles (Fe3O4 NPs) into gallic acid (GA) as organic part and copper(II) phosphate (Cu3(PO4)2) as inorganic parts. The FeGANF were characterized by SEM, EDX, FT‐IR and XRD. The peroxidase‐like activity and dye degradation performance of FeGANF and GANF based on Fenton reaction in the presence of H2O2 was studied toward guaiacol as substrate, using methylene blue (MB) and congo red (CR) as a cationic and anionic dyes, respectively. FeGANF shows much high catalytic activity and decoloration efficiency (97 % for MB and 99 % for CR) because of dual active center in Fenton reaction on the surface of FeGANF. FeGANF exhibited more antimicrobial activity against Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 25923, and Candida albicans ATCC 10231 than that of the GA and GANF. The results of these studies suggest that magnetic hNFs has proved to be promising Fenton reagents for biological and environmental applications including treatment of wastewater.

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Section: Resultsmentioning

confidence: 99%

Section: Dye Degradation Performance Of Hnfsmentioning

confidence: 99%

Natural Molecule‐Incorporated Magnetic Organic‐Inorganic Nanoflower: Investigation of Its Dual Fenton Reaction‐Dependent Enzyme‐Like Catalytic Activities with Cyclic Use

et al. 2023

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“…POM microfiber is a well-investigated type of composite microfiber with excellent tensile strength to be used as framework to support β-CDs. The hydrophobic cavity of CDs allows them to form host-guest complexes with Ag nanoparticles in POM [18][19][20][21]. And to the best of our knowledge, the preparation of Ag/POM/β-CD composite microfiber matrices using electrospinning has not yet been reported.…”

Section: Introductionmentioning

confidence: 99%

Electrospinning and Catalytic Properties of Cyclodextrin Functionalized Polyoxymethylene (POM) Nanofibers Supported by Silver Nanoparticles

Zhang

Wang

et al. 2021

Advances in Polymer Technology

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A series of novel composite microfibers composed of β-cyclodextrin (β-CDs) functionalized POM (polyoxymethylene) were prepared using electrospining technology with a mixture of hexafluoroisopropanol (HFIP) and N,N-dimethylformamide (DMF) as solvent. The concentration of β-CDs with respect to the POM was varied from 0 to 50 wt.%. The effect of β-CDs content on the morphology of POM/β-CD composite microfiber was investigated. The results showed that the introduction of β-CDs reduced the surface roughness and porosity of the microfibers, and the morphology of the fibers was changed. The increase of β-CDs content from 10% to 50% has led to increased average diameter of POM/β-CD composite fiber from 2.1 μm to 6.4 μm. The mechanical properties of the blend fiber mats were further investigated. In addition, silver nanoparticles were introduced to the POM/β-CD composite microfiber matrices during electrospinning. The POM/β-CD composite fiber allows CDs to form host–guest complexes with various small molecules and macromolecules. The TEM, SEM, XRD, and XPS were utilized to characterize the prepared samples. The data suggest that Ag nanoparticles were homogeneously distributed within the POM/β-CD fibers, and no aggregation was observed. The catalytic activity of Ag nanoparticles was tracked by ultraviolet-visible (UV-vis) spectroscopy which showed excellent catalytic degradation performance of organic dyes in the presence of NaBH4. The Ag/POM/β-CD mats are promising for use in waste treatment, molecular recognition, catalysis, and so on.

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“…Throughout the past decade, nanotechnology has resulted in the discovery of materials with improved physicochemical features and applications ranging from nanoelectronics to nanomedicine [5]. Metallic and semiconductor nanoparticles are efficient dye degradation catalysts and photocatalysts in the aquatic environment [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Biogenic synthesis of selenium nanoparticles using Hibiscus esculentus L. extract: Catalytic degradation of organic dye and its anticancer, antibacterial and antifungal activities

et al. 2023

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In this work, we develop the synthesis of selenium nanoparticles (B@SeNPs) using a green method using the aqueous extract of Hibiscus esculentus L. Various techniques were used to characterize bio-synthesized B@SeNPs. The mixture color was clearly changed to reddish at 45-50 °C and the extract pH = 6. According to Fourier transform infrared spectroscopy (FT-IR), the B@SeNPs were produced, capped, and stabilized using biomolecules found in plant extracts. The energy dispersive X-ray (EDX) analysis profile revealed an atomic Se signal (1.39 mV). The powder X-ray diffraction (PXRD) pattern confirmed the hexagonal phase crystalline form of B@SeNPs. The zeta potential for SeNPs was determined to be -51.3 mV. Scanning electron microscope (SEM) and transmission electron microscopy (TEM) micrographs revealed spherical Se particles with sizes of roughly 62 nm. Furthermore, B@SeNPs can degrade methylene blue dye by 98.3% at 21 min with a rate constant of 0.1023 min-1 in the presence of NaBH4. In biological evaluation, the synthesized nanoparticles have been proven to be effective against two human cancers (AGS and MCF-7 cells) with IC50 values of 20.46 and 88.43 µg/mL, respectively. Additionally, B@SeNPs showed high safety in the Beas cell line (normal) at 123 µg/mL as the highest concentration. The biofabricated SeNPs had a moderate antibacterial effect against ATCC and multidrug-resistant clinical isolates. They had no antifungal activity against the tested fungus strains except C. albicans (IFRC 1873), with a MIC value of 138.75 µg/mL. Finally, the green-synthesized B@SeNPs could be a contender for further testing as a chemotherapeutic agent in the treatment of some human cancers.

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Discovery of high antibacterial and catalytic activities against multi-drug resistant clinical bacteria and hazardous pollutants by biosynthesized of silver nanoparticles using Stachys inflata extract (AgNPs@SI)

Cited by 28 publications

References 43 publications

Natural Molecule‐Incorporated Magnetic Organic‐Inorganic Nanoflower: Investigation of Its Dual Fenton Reaction‐Dependent Enzyme‐Like Catalytic Activities with Cyclic Use

Natural Molecule‐Incorporated Magnetic Organic‐Inorganic Nanoflower: Investigation of Its Dual Fenton Reaction‐Dependent Enzyme‐Like Catalytic Activities with Cyclic Use

Electrospinning and Catalytic Properties of Cyclodextrin Functionalized Polyoxymethylene (POM) Nanofibers Supported by Silver Nanoparticles

Biogenic synthesis of selenium nanoparticles using Hibiscus esculentus L. extract: Catalytic degradation of organic dye and its anticancer, antibacterial and antifungal activities

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