Antibacterial and Antibiofilm Activity of Biosynthesized Silver Nanoparticles Coated With Exopolysaccharides Obtained From <i>Rhodotorula mucilaginosa</i>

Vázquez-Rodríguez, Augusto; Vasto-Anzaldo, Ximena G.; León-Buitimea, Ángel; Zárate, Xristo; Morones‐Ramírez, José Rubén

doi:10.1109/tnb.2020.2985101

Cited by 16 publications

(5 citation statements)

References 32 publications

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“…The AgNPs from some other plant crude such as Caralluma tuberculata, onion peel, durian-rind extract, Cornus officinalis, Rhodotorula mucilaginosa, and so forth have been recently reported for antibacterial and some other properties. The present study findings also imply that the MY-mediated AgNPs following a green approach were of interest for their antibacterial and antioxidant properties and could further be investigated for other properties.…”

Section: Resultsmentioning

confidence: 99%

Green and Facile Synthesis and Antioxidant and Antibacterial Evaluation of Dietary Myricetin-Mediated Silver Nanoparticles

Zhao

Ali

et al. 2020

ACS Omega

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Myricetin (MY) is a dietary flavonoid which exhibits a wide spectrum of biological properties, viz., antibacterial, antioxidant, anticancer, and so forth. The lower solubility in aqueous medium and hence lesser bioavailability of MY limits the use of such dietary flavonoids in further in vivo research. To overcome bioavailability limitations, a number of drug-delivery systems are being investigated. Herein, MY-mediated silver nanoparticles (MY-AgNPs) were synthesized by a green approach to improve the therapeutic efficacy of MY. MY-AgNPs were characterized by ultraviolet–visible spectroscopy (UV–Vis), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray powder diffraction (XRD). The results showed that the dispersion of AgNPs had the maximum UV–vis absorption at about 410 nm. The synthesized nanoparticles were almost spherical. MY-AgNPs were further investigated against human pathogenic bacteria, and their antioxidant potential was also determined. The free radical scavenging rate was about 60–87%. MY-AgNPs had good antibacterial activity against Escherichia coli and Salmonella at room temperature with minimum inhibitory concentrations of 10 –4 and 10 –5 g/L, respectively.

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Section: Resultsmentioning

confidence: 99%

Green and Facile Synthesis and Antioxidant and Antibacterial Evaluation of Dietary Myricetin-Mediated Silver Nanoparticles

Zhao

Ali

et al. 2020

ACS Omega

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“…Recently, a silver-based nanobiocomposite was synthesized using an exopolysaccharide produced by Rhodotorula mucilaginosa UANL-001L (EPS). The results showed an increased antibacterial and anti-biofilm activity of this nanobiocomposite against pathogens of clinical relevance (Vazquez-Rodriguez et al, 2020). Moreover, nanocomposites have been synthesized through green chemistry, such as zinc (Zn) and nickel (Ni) MNPs capped with EPS as capping agents, and they have displayed interesting antimicrobial properties as well.…”

Section: Metal Nanoparticle-based Combinatorial Treatmentsmentioning

confidence: 98%

The Demand for New Antibiotics: Antimicrobial Peptides, Nanoparticles, and Combinatorial Therapies as Future Strategies in Antibacterial Agent Design

et al. 2020

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“…14 Exopolysaccharides (EPS) are produced by algae, fungi, and bacteria and are composed of different monosaccharides. 20 Their role in bacterial homeostasis has been well-known. [21][22][23] Lately, studies exploring their health promoting effects are increasing in number.…”

Section: Exopolysaccharides and Their Structurementioning

confidence: 99%

Exopolysaccharides Derived from Probiotic Bacteria and their Health Benefits

Bhandary¹,

Kurian²,

Magesh³

et al. 2023

J. Pure Appl. Microbiol.

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Probiotic bacteria are producers of secretory products such as bacteriocins and polysaccharides. Both homopolymeric and heteropolymeric exopolysaccharides (EPS) present on the surface of microorganisms have shown beneficial properties. While the fact that they play a role in bacterial homeostasis is well established, studies exploring their health promoting effects have also gained traction. Some exopolysaccharides function by inducing immune tolerance, others act by evading immune responses such as those by B and T cells. The interaction between the EPS and the immune system helps protect the bacteria against an attack by the host immune system. Several exopolysaccharides also show tolerogenic properties by reducing the amount of pro-inflammatory cytokines and increasing IL-10 production. They are also associated with anti-bacterial activity, anti-biofilm activity and anti-tumour properties. This review highlights the different types of exopolysaccharides and their health benefiting potentials. Better understanding of these mechanisms will pave the way for harnessing their potential to improve our health.

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Antibacterial and Antibiofilm Activity of Biosynthesized Silver Nanoparticles Coated With Exopolysaccharides Obtained From Rhodotorula mucilaginosa

Cited by 16 publications

References 32 publications

Green and Facile Synthesis and Antioxidant and Antibacterial Evaluation of Dietary Myricetin-Mediated Silver Nanoparticles

Green and Facile Synthesis and Antioxidant and Antibacterial Evaluation of Dietary Myricetin-Mediated Silver Nanoparticles

The Demand for New Antibiotics: Antimicrobial Peptides, Nanoparticles, and Combinatorial Therapies as Future Strategies in Antibacterial Agent Design

Exopolysaccharides Derived from Probiotic Bacteria and their Health Benefits

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