Green synthesis of silver nanoparticles using Oxalis griffithii extract and assessing their antimicrobial activity

Singla, Shivali; Jana, Abhishek; Thakur, Reena; Kumari, Chinu; Goyal, Sachin; Pradhan, Joohee

doi:10.1016/j.onano.2022.100047

Cited by 56 publications

(33 citation statements)

References 48 publications

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“…Low-intensity peaks can be attributed to the crystallization of bioorganic phases that occur on the surface of the AgNPs [32]. These data are matched with the previous nding [33].…”

Section: X-ray Diffraction (Xrd)supporting

confidence: 90%

Green synthesis of silver nanoparticles using Trachyspermum ammi fruit extract: Characterization and antibacterial activity

Hanafi‐Bojd

Hasheminezhad

Alemzadeh

et al. 2022

Preprint

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In recent years, bio-metallic nanoparticles have been considered in medical science due to their biomedical properties. This research aimed to develop an eco-friendly, simple and facile process to synthesize green silver nanoparticles (AgNPs) using Trachyspermum ammi fruit extract. The synthesized silver nanoparticles were characterized using FT-IR, UV-Vis spectroscopy, XRD, DLS, and TEM. The minimum inhibitory concentration (MIC) values of synthesized AgNPs and T. ammi extract for five standard bacteria strains were determined by the broth microdilution method. The obtained AgNPs exhibited Surface Plasmon Resonance centered at about 415 nm with an average particle size calculated to be 50 nm. The mean particle size and surface charge of biosynthesized AgNPs using T. ammi extract investigated by DLS and zeta potential were 26.78 ± 1.24 nm and − 13.96 mV, respectively. Furthermore, green synthesized AgNPs show high and efficient antibacterial activity against E. coli ATCC 25922, P. aeruginosa ATCC 27853, K. pneumonia ATCC 9997, S. aureus ATCC 25923, and E. faecalis ATCC 29212 with MIC values of 19, 19.5, 75, 150, and 39 µg/ml, respectively. Noteworthy, the antibacterial results illustrated that green synthesized AgNPs possess significantly higher antibacterial potency than chemically produced silver nanoparticles. Our findings highlight the effective and efficient synthesis of silver nanoparticles by T. ammi fruit extract and its significant antibacterial activities.

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“…Low-intensity peaks can be attributed to the crystallization of bioorganic phases that occur on the surface of the AgNPs [32]. These data are matched with the previous nding [33].…”

Section: X-ray Diffraction (Xrd)supporting

confidence: 90%

Green synthesis of silver nanoparticles using Trachyspermum ammi fruit extract: Characterization and antibacterial activity

Hanafi‐Bojd

Hasheminezhad

Alemzadeh

et al. 2022

Preprint

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show abstract

“…49 Generally, other elements observed by EDX analysis including carbon, oxygen, and chloride were demonstrated as capping agents of the biosynthesized silver nanoparticles in agreement with other studies. 50,51 The elemental mapping of the biosynthesized AgNPs is presented in Fig. 5B, exhibiting that all elements are homogeneously dispersed.…”

Section: Resultsmentioning

confidence: 99%

Microwave-assisted green synthesis ofDesmodium triquetrum-mediated silver nanoparticles: enhanced antibacterial, antibiofilm, and cytotoxicity activities against human breast cancer cell lines

Maryani¹,

Septama

2022

Mater. Adv.

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“…Figure depicts the UV–Vis spectra of beneficiated kaolin and fabricated Ag-NPs/kaolin composites. The absorption peak at around 400 nm is attributed to the SPR of Ag-NPs, indicating the growth of Ag-NPs on the kaolin surface. − The SPR band arises due to the combined oscillations of nanoparticle conduction electrons in visible light. It is greatly influenced by the size and morphology of the nanoparticles .…”

Section: Resultsmentioning

confidence: 99%

Kaolin-Supported Silver Nanoparticles as an Effective Catalyst for the Removal of Methylene Blue Dye from Aqueous Solutions

et al. 2022

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Water contamination by organic dyes has become a reason for severe environmental pollution and has been threatening the aquatic ecosystem. In this study, kaolin-supported silver nanoparticle (Ag-NP) composites were synthesized by a facile two-step adsorption−reduction method through the reduction of silver ions adsorbed onto locally available, inexpensive, and easily pretreated kaolin surfaces by using sodium borohydride (NaBH 4 ) for the catalytic degradation of methylene blue (MB) dye in aqueous solution. The morphology, structure, surface area, and interaction of the synthesized materials were investigated by scanning electron microscopy, X-ray diffraction, Brunauer− Emmett−Teller, and Fourier transform infrared spectroscopy, respectively. Characterization results showed the successful growth of Ag-NPs on the kaolin surface. To understand the catalytic degradation performance of the catalyst, batch experiments were carried out using MB dye as a model dye. The catalytic reduction tests confirmed the importance of Ag-NPs and the high catalytic activities of the synthesized Ag-NPs/kaolin composite toward MB dye reduction. The degradation results indicated that the increased Ag-NP content on the kaolin surface through repeating cycles could effectively enhance the removal of MB dye from an aqueous solution. The kinetic analysis of the MB dye degradation of the catalyst has fitted the pseudo-first-order kinetic model. More than 97% removal efficiency was still present after five reuse cycles, demonstrating exceptional stability and reusability of the composite. In conclusion, the Ag-NPs supported kaolin (Ag-NPs/kaolin) composite was found to be a promising catalyst for the excellent catalytic activity to reduce a model dye MB from the aqueous solution in the presence of NaBH 4 with catalytic efficiency higher than 97% and a reduction rate constant, k red , higher than 0.86 min −1 .

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Green synthesis of silver nanoparticles using Oxalis griffithii extract and assessing their antimicrobial activity

Cited by 56 publications

References 48 publications

Green synthesis of silver nanoparticles using Trachyspermum ammi fruit extract: Characterization and antibacterial activity

Green synthesis of silver nanoparticles using Trachyspermum ammi fruit extract: Characterization and antibacterial activity

Microwave-assisted green synthesis ofDesmodium triquetrum-mediated silver nanoparticles: enhanced antibacterial, antibiofilm, and cytotoxicity activities against human breast cancer cell lines

Kaolin-Supported Silver Nanoparticles as an Effective Catalyst for the Removal of Methylene Blue Dye from Aqueous Solutions

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