Assessment of antimicrobial activity and methyl orange dye removal by Klebsiella pneumoniae-mediated silver nanoparticles DOI Creative Commons

Reema Desai,

Virendra Kumar Yadav, Bhakti K. Patel

et al.

Green Processing and Synthesis, Journal Year: 2024, Volume and Issue: 13(1)

Published: Jan. 1, 2024

Abstract The synthesis of silver nanoparticles (AgNPs) using bacteria is more interesting because their non-toxic, biocompatible, environmentally friendly, and cost-effectiveness. In the present research work, AgNPs were synthesized by Klebsiella pneumoniae in two steps: first, K. was grown nutrient broth, followed mixing bacterial supernatant nitrate aqueous solution an optimized ratio. thoroughly analyzed analytical instruments for a detailed investigation. absorption peak observed UV-visible spectrophotometry at 464 nm indicated development AgNPs, while characteristic bands infrared spectroscopy region 500–4,000 cm −1 . Morphological examination via field emission SEM unveiled spherical-shaped whose sizes varied from 22.25 to 47.99 nm, along with high aggregation. crystallinity nature demonstrated X-ray diffraction, which revealed major intensity peaks 2 θ values 27.6°, 31.9°, 46°. showed 26.6% methyl orange dye removal within 50 min. antibacterial activities against Bacillus cereus , megaterium Serratia marcescens Staphylococcus aureus maximum zones inhibition, i.e., 14 mm (10 mg·mL ), 16 (5 10 13 12 ). Therefore, bacterial-synthesized exhibited potential application biomedicine, may be further used various other pathogens.

Language: Английский

Catalytic activity of g‐C3N4/SA and Ag0–Fe0‐fabricated g‐C3N4/SA composite beads towards dye‐containing wastewater treatment: a comparative study DOI Open Access
Rana Waqar Aslam, Shanza Rauf Khan, Sarmad Ali

et al.

Journal of Chemical Technology & Biotechnology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

Abstract BACKGROUND Sodium alginate (SA)/carbon nitride (g‐C 3 N 4 ) composite beads loaded with silver (Ag) and iron (Fe) bimetallic nanoparticles (Ag 0 –Fe /g‐C /SA) introduce a new approach in wastewater treatment. Ag synergy is utilized to enhance reduction efficiency ensure sustainable water purification. Composite of g‐C /SA were prepared then introduced solution Fe reduced their zero valent state (M by treating it sodium borohydride (NaBH ). was further used for the catalytic harmful compounds from water. RESULTS X‐ray diffraction analyze chemically synthesized beads. The high intensity peaks confirmed that amount higher than Fe. Scanning electron microscopy showed shape be rough granular. Atomic absorption spectroscopy exhibited adsorption capacity ions as compared ions. Fourier transform infrared presence OH, CN, CO, CH functional groups sample. Catalytic Erichrome Black T (EBT), Methyl Orange (MO), Rhodamine B (Rh‐B), Reactive 5 (RB‐5) carried out using catalysts. Various parameters such apparent rate constant ( k app ), concentration, percentage reduction, time, half‐life also studied activity both CONCLUSION Overall, highest 73%, 93%, 94%, 92% EBT, MO, Rh‐B, RB‐5, respectively, effectively © 2025 Society Chemical Industry (SCI).

Language: Английский

Citations

3
Frontiers in Bacterial-Based Green Synthesized Nanoparticles (NPs): A Sustainable Strategy for Combating Infectious Plant Pathogens DOI
Amjad Ali, Muhammad Aasım, Kübra Çelık

et al.

Biocatalysis and Agricultural Biotechnology, Journal Year: 2024, Volume and Issue: 60, P. 103293 - 103293

Published: June 27, 2024

Language: Английский

Citations

6
Phytofabrication of silver nanoparticles by using Cucurbita maxima leaf extract and its potential anticancer activity and pesticide degradation DOI Creative Commons

Sudakshina Trivedi,

Amrita Srivastava, Divya Saxena

et al.

Materials Technology, Journal Year: 2024, Volume and Issue: 40(1)

Published: Dec. 16, 2024

Global cancer mortality is rising yearly due to various factors. Silver nanoparticles (AgNPs) are widely utilized for their low cost and antibacterial properties compared other noble metals. Here, AgNPs were synthesized using Cucurbita maxima leaf extract, which was analyzed by analytical instruments. UV-visible spectra showed an absorbance peak in the 410-420 nm range, while Fourier transform infrared exhibited bands at 653 cm−1, 1629, 2276, 3786 cm−1. X-ray diffraction major intensity peaks 38.1º two theta value with average crystallite size of 18.34 nm. The transmission electron microscope aggregation spherical-shaped AgNPs, 10-90 MTT assay that it highly effective against SiHa cervical cells a much lower IC50 (~8 µg/mL) capable pesticide removal highest efficiency pH 9.

Language: Английский

Citations

4
Biogenic Synthesis and Potential Applications of Nano-Ag Particles from Bacillus velezensis KKWHNGU1 Isolated from Photovoltaic Solar Panel DOI
Kuldeep Luhana, Bhakti K. Patel, Jayvadan K. Patel

et al.

Water Air & Soil Pollution, Journal Year: 2025, Volume and Issue: 236(2)

Published: Jan. 9, 2025

Language: Английский

Citations

0
Silver Nanoparticles Synthesized from Marine Algae Spatoglossum asperum: Antioxidant Properties and Seed Germination Enhancement DOI Creative Commons

Disha D. Patel,

Bhakti K. Patel, Virendra Kumar Yadav

et al.

Journal of Hazardous Materials Advances, Journal Year: 2024, Volume and Issue: unknown, P. 100478 - 100478

Published: Sept. 1, 2024

Language: Английский

Citations

3
Biogenic silver nanoparticles derived from the marine brown algae Iyengaria stellata for plant growth promotion under saline conditions DOI

Disha D. Patel,

Bhakti K. Patel, Anil Patani

et al.

Physiologia Plantarum, Journal Year: 2024, Volume and Issue: 176(6)

Published: Nov. 1, 2024

In the green approach for nanoparticle synthesis, biomolecules like phenols, alkaloids, proteins, enzymes, and lipids are prime reducing stabilizing agents. this study, we reported synthesis of silver nanoparticles (AgNPs) using aqueous extract marine algae Iyengaria stellata (Børgesen) first time. The characterization study showed that developed AgNPs were spherical in shape their average particle size was 60 nm. UV-visible spectrum strong surface plasmon resonance (SPR) near 425 nm, whereas Fourier transform infrared spectroscopy (FTIR) revealed presence several functional groups amines, nitriles, hydroxyl, carbonyl on surface, which confirms involvement algal metabolites reduction stabilization AgNPs. X-ray diffraction (XRD) analysis provided information about crystallinity nanoparticles, crystallite calculated to be 33 nm Scherrer equation. synthesized examined impact growth tomato seeds under salt stressed conditions significant enhancement parameters leaf area, shoot height, root length, weight, weight. Also, a biochemical stress responses such as chlorophyll content, relative water electrolyte leakage, hydrogen peroxide (H

Language: Английский

Citations

2
Assessment of antimicrobial activity and methyl orange dye removal by Klebsiella pneumoniae-mediated silver nanoparticles DOI Creative Commons

Reema Desai,

Virendra Kumar Yadav, Bhakti K. Patel

et al.

Green Processing and Synthesis, Journal Year: 2024, Volume and Issue: 13(1)

Published: Jan. 1, 2024

Abstract The synthesis of silver nanoparticles (AgNPs) using bacteria is more interesting because their non-toxic, biocompatible, environmentally friendly, and cost-effectiveness. In the present research work, AgNPs were synthesized by Klebsiella pneumoniae in two steps: first, K. was grown nutrient broth, followed mixing bacterial supernatant nitrate aqueous solution an optimized ratio. thoroughly analyzed analytical instruments for a detailed investigation. absorption peak observed UV-visible spectrophotometry at 464 nm indicated development AgNPs, while characteristic bands infrared spectroscopy region 500–4,000 cm −1 . Morphological examination via field emission SEM unveiled spherical-shaped whose sizes varied from 22.25 to 47.99 nm, along with high aggregation. crystallinity nature demonstrated X-ray diffraction, which revealed major intensity peaks 2 θ values 27.6°, 31.9°, 46°. showed 26.6% methyl orange dye removal within 50 min. antibacterial activities against Bacillus cereus , megaterium Serratia marcescens Staphylococcus aureus maximum zones inhibition, i.e., 14 mm (10 mg·mL ), 16 (5 10 13 12 ). Therefore, bacterial-synthesized exhibited potential application biomedicine, may be further used various other pathogens.

Language: Английский

Citations

1