Rapid and facile synthesis of gold nanoparticles with two Mexican medicinal plants and a comparison with traditional chemical synthesis

Soto, Karen M.; López-Romero, J. Mauricio; Mendoza, Sandra; Peza-Ledesma, C.; Rivera-Muñoz, Eric M.; Velázquez-Castillo, Rodrigo; Pineda-Piñón, Jorge; Méndez-Lozano, Néstor; Manzano-Ramı́rez, A.

doi:10.1016/j.matchemphys.2022.127109

Cited by 10 publications

(2 citation statements)

References 43 publications

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“…Our results indicate that the fabricated AgNPs are spherical, a conclusion further validated through TEM investigation. Similarly, the bio-fabricated AuNP@AL exhibited an SPR peak at 536 nm ( Figure 1 b), confirming the successful formation of the nanomaterial, consistent with findings in published reports [ 55 , 56 ]. In summary, the comprehensive observations from visual and UV–visible analyses indicate that the phytochemicals in the A. Laeve extract efficiently reduce Ag and Au ions and act as efficient stabilizing biomolecules in the fabrication of Ag and AuNPs.…”

Section: Resultssupporting

confidence: 90%

Assessing the Potential of Aconitum Laeve Extract for Biogenic Silver and Gold Nanoparticle Synthesis and Their Biological and Catalytic Applications

Ahmad,

Xu,

Tariq

et al. 2024

Molecules

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The adoption of green chemistry protocols in nanoparticle (NP) synthesis has exhibited substantial potential and is presently a central focus in research for generating versatile NPs applicable across a broad spectrum of applications. In this scientific contribution, we, for the first time, examined the ability of Aconitum Laeve (A. Laeve) crude extract to synthesize silver and gold nanoparticles (AgNPs@AL; AuNP@AL) and explored their potential applications in biological activities and the catalytic degradation of environmental pollutants. The synthesized NPs exhibited a distinctive surface plasmon resonance pattern, a spherical morphology with approximate sizes of 5–10 nm (TEM imaging), a crystalline architecture (XRD analysis), and potential functional groups identified by FTIR spectroscopy. The antibacterial activity was demonstrated by inhibition zones that measured 16 and 14 mm for the AgNPs@AL and AuNP@AL at a concentration of 80 µg/mL against Staphylococcus aureus and 14 and 12 mm against Escherichia coli, respectively. The antioxidant potential of the synthesized NPs was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2-Phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-Oxide (PTIO), and 3-ethylbenzothiazoline-6-sulfonic acid (ABTS) assays. Our findings suggest that the AuNP@AL effectively countered the tested radicals considerably, displaying IC50 values of 115.9, 103.54, and 180.85 µg/mL against DPPH, PTIO, and ABTS, respectively. In contrast, the AgNPs@AL showed IC50 values of 144.9, 116.36, and 95.39 µg/mL against the respective radicals. In addition, both the NPs presented significant effectiveness in the photocatalytic degradation of methylene blue and rhodamine B. The overall observations indicate that A. Laeve possesses a robust capability to synthesize spherical nanoparticles, exhibiting excellent dispersion and showcasing potential applications in both biological activities and environmental remediation.

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Section: Resultssupporting

confidence: 90%

Assessing the Potential of Aconitum Laeve Extract for Biogenic Silver and Gold Nanoparticle Synthesis and Their Biological and Catalytic Applications

Ahmad,

Xu,

Tariq

et al. 2024

Molecules

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“…The structural characteristics of synthesis products derived from biological precursors are contingent upon several reaction parameters, including temperature and pH levels. Chemicals found in plant extracts for instance flavonoids, terpenoids, aldehydes, ketones and phenolic compounds are used in the biosynthesis of metal or metal oxide nanoparticles [8]. Since the plant part functions as a stabilizing agent, other stabilizators are no longer needed in the suggested biological synthesis [9].…”

Section: Introductionmentioning

confidence: 99%

Bio-capped multifunctional CuO nanoparticles via Knautia arvensis for dye removal, antibacterial and antifungal efficiency, and molecular docking

Sazak,

Attar,

Ari Yuka

et al. 2024

Mater. Res. Express

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Copper oxide nanoparticles (CuONPs) synthesized using Knautia arvensis flower extract in an environmentally friendly and one-step procedure were characterized by UV–vis, FT-IR, SEM and DLS. The in vitro antibacterial and antifungal activities of CuONPs were determined using E. coli, S. aureus and A. niger. In silico antibacterial and antifungal evaluation of CuONPs were performed by molecular docking analysis using chitin deacetylase of A. niger, topoisomerase IV of E. coli and tyrosyl-tRNA synthetase of S. aureus. The best binding energy was determined using these microbial targets in molecular docking analyses and the antimicrobial mechanisms between the microorganism and the CuONP were elucidated. The degradation potential of Remazol brilliant blue R (RBBR) and Napthol blue black (NBB) dyes in the presence of CuONPs were investigated. The peak obtained at 289 nm as a result of UV–vis analysis revealed the presence of CuONPs. The spherical morphology of CuONPs and the particle size varying between 88–289 nm were visualized by SEM. DLS analysis pointed out the mean diameter of CuONPs was 189 nm along with the PDI value of 0.324. The 600 and 595 cm−1 vibrations attained in the FT-IR spectroscopy showed the presence of CuONPs. In addition, the presence of phenolic compounds found in the plant extract responsible for bio-capping of copper ions into CuONPs were enlightened by the FT-IR analysis. Dye degradation activity of CuONPs was found as 69% and 71% using NBB and RBBR at 50 °C in 90 min, respectively. Antifungal and antibacterial interactions of CuONPs with chitin deacetylase of A. niger, topoisomerase IV of E. coli and tyrosyl-tRNA synthetase of S. aureus were analyzed in order to reveal the antimicrobial mechanisms of CuONPs and it was found that CuONPs demonstrate significant interactions with those proteins with binding energies −7.25, −7.14 and −7.89 kcal mol−1, respectively.

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Biogenic synthesis of AuNPs using Solanum virginianum L. and their antibacterial, antioxidant and catalytic applications

Rohilla,

Chhikara,

Dahiya

2023

Indian J Microbiol

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Rapid and facile synthesis of gold nanoparticles with two Mexican medicinal plants and a comparison with traditional chemical synthesis

Cited by 10 publications

References 43 publications

Assessing the Potential of Aconitum Laeve Extract for Biogenic Silver and Gold Nanoparticle Synthesis and Their Biological and Catalytic Applications

Assessing the Potential of Aconitum Laeve Extract for Biogenic Silver and Gold Nanoparticle Synthesis and Their Biological and Catalytic Applications

Bio-capped multifunctional CuO nanoparticles via Knautia arvensis for dye removal, antibacterial and antifungal efficiency, and molecular docking

Biogenic synthesis of AuNPs using Solanum virginianum L. and their antibacterial, antioxidant and catalytic applications

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