Cultivation of the coupling bacteria for simultaneous autotrophic nitrogen and sulfur removal and its remediation effect on the river sediment

Zhang, Xiaojing; Wang, Wenxiao; Wei, Denghui; Yang, Haojie; Chen, Na; Wang, Qiong; Song, Yali; Ma, Yongpeng

doi:10.1016/j.jece.2024.111923

Cited by 1 publication

(1 citation statement)

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“…Applications of nanotechnology have practically impacted all aspects of modern life. For a couple of decades, the synthesis of nanostructures has attracted significant attention due to their potential uses in various fields, including optoelectronics, , catalysis, , sensing, − water purification, − nanomedicine, − efficient antimicrobial agents, , etc. Silver nanoparticles (Ag-NPs) have received more attention than other noble metal nanostructures as efficient antimicrobial agents against different Gram-positive and Gram-negative bacterial strains.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Antibacterial and Anti-inflammatory Potential of Polyol-Synthesized Silver Nanoparticles

Ahmad,

Khan,

Hayat

et al. 2024

ACS Omega

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Silver nanoparticles (Ag-NPs) were synthesized by using the polyol method. The structural and morphological characteristics of Ag-NPs were studied by using X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM). The XRD analysis revealed the formation of single-phase polycrystalline Ag-NPs with an average crystallite size and lattice constant of ∼23 nm and 4.07 Å, respectively, while the FE-SEM shows the formation of a uniform and spherical morphology. Energy-dispersive X-ray spectroscopy confirmed the formation of single-phase Ag-NPs, and no extra elements were detected. A strong absorption peak at ∼427 nm was observed in the UV− vis spectrum, which reflects the surface plasmon resonance (SPR) behavior characteristic of Ag-NPs with a spherical morphology. Fourier-transform infrared (FTIR) spectra also supported the XRD and EDX results with regard to the purity of the prepared Ag-NPs. Anti-inflammatory activity was tested using HRBCs membrane stabilization and heatinduced hemolysis assays. The antibacterial activity of Ag-NPs was evaluated against four different types of pathogenic bacteria by using the disc diffusion method (DDM). The Gram-negative bacterial strains used in this study are Escherichia coli (E. coli), Klebsiella, Shigella, and Salmonella. The analysis suggested that the antibacterial activities of Ag-NPs have an influential role in inhibiting the growth of the tested Gram-negative bacteria, and thus Ag-NPs can find a potential application in the pharmaceutical industry.

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