Eco-friendly Green Synthesis of Silver Nanoparticles from Leaf Extract of Solanum khasianum: Optical Properties and Biological Applications

Chirumamilla, Pavani; Dharavath, Sunitha Bai; Taduri, Shasthree

doi:10.1007/s12010-022-04156-4

Cited by 36 publications

(9 citation statements)

References 65 publications

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“…The high degree of crystallinity of silver nanoparticles is evident in the intensity of peak position reflections. A modest crystallite size is indicated by the large diffraction peaks . The XRD analysis confirms the crystalline nature of the silver nanoparticles.…”

Section: Resultssupporting

confidence: 54%

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Analysis of Crystallographic Structures and Properties of Silver Nanoparticles Synthesized Using PKL Extract and Nanoscale Characterization Techniques

et al. 2023

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In this cutting-edge research era, silver nanoparticles impose a substantial impact because of their wide applicability in the field of engineering, science, and industry. Regarding the vast applications of silver nanoparticles, in this study, the crystallographic characteristics and nanostructures of silver nanoparticles extracted from natural resources have been studied. First, biosynthetic silver nanoparticles were synthesized using the Pathor Kuchi leaf (PKL) extract as a mediator, and their crystal structures and characteristics were analyzed by UV–visible absorption spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and energy-dispersive X-ray (EDX) analysis. The average crystallite size of the synthesized silver nanoparticle was determined to be 20.26 nm, and also the lattice strain, intrinsic stress, and dislocation density were measured to be 2.19 × 10–3, 0.08235 GPa, and 3.062045 × 10–3/nm2, respectively. Further, the prepared sample of silver nanoparticles shows four peaks in the X-ray diffraction pattern, which correspond to the (111), (200), (220), and (311) face-centered cubic (FCC) crystalline planes. The outstanding finding of this work was that when the lattice parameters of the precursor were increased, the volume of the material did not considerably change, but the particle size decreased. Second, it was clearly demonstrated that this straightforward method is a clean, cost-effective, environmentally sustainable, nontoxic, and efficient route for the synthesis of silver nanoparticles (Ag NPs) using PKL leaf at ambient temperature, which also satisfies the green chemistry requirements. Finally, this study demonstrates the scope for the production of silver nanoparticles using low-cost natural resources.

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Section: Resultssupporting

confidence: 54%

“…A modest crystallite size is indicated by the large diffraction peaks. 50 The XRD analysis confirms the crystalline nature of the silver nanoparticles. The crystallite size of silver nanoparticles was determined to be 20.26 nm using the Debye−Scherrer eq 1 51−53…”

Section: Synthesis Of Silver Nanoparticles (Ag Nps)mentioning

confidence: 56%

Analysis of Crystallographic Structures and Properties of Silver Nanoparticles Synthesized Using PKL Extract and Nanoscale Characterization Techniques

et al. 2023

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“…In the XRD pattern for Ag/GNPs, presented in Figure , distinct characteristic crystal reflections indicative of metallic silver are observed: (111), (200), (220), and (311) at 2θ values of 38.09, 44.28, 64.44, and 77.43°, respectively (JCPDS 04-0783). , Concurrently, the crystal structure of the graphitic carbon lattice from GNPs is evident at 2θ = 26.44°, aligning with the (002) crystal reflection of pristine carbon. The XRD pattern for GNPs reveals only the crystal reflection of graphitic carbon at 2θ = 26.44° (Figure ), in accordance with file JCPDS card no.…”

Section: Resultsmentioning

confidence: 89%

Ag-NP-Decorated Carbon Nanostructures: Synthesis, Characterization, and Antimicrobial Properties

Siller-Ceniceros,

Almonte-Flores,

Sánchez-Castro

et al. 2024

ACS Omega

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As the global urgency for effective antimicrobial agents intensifies, this work harnesses the widely demonstrated antimicrobial activity of silver nanoparticles (Ag-NPs) and proposes alternative synthesis approaches to metal−organic hybrid systems with antimicrobial activity. In this study, the proposed synthesis route involves decorating metallic nanoparticles into organic substrates without previous doping. The synthesis simultaneously uses polyethylene glycol for three crucial purposes: (1) acting as a mild reducing agent to generate Ag-NPs with a spherical shape and diameters ranging from 10 to just over 20 nm, (2) functioning as a dispersing agent for flakes of commercial nanostructured carbon supports, including reduced graphene oxide (rGO, ID-nano), and commercial carbon nanoplatelets from Sigma-Aldrich (GNPs, Sigma-Aldrich), and (3) serving as a promoter for the homogeneous anchoring of Ag-NPs in the carbon lattice without altering the conformation of the carbon lattice. This intricate interaction involves the π-orbitals from the sp 2 hybridization honeycomb and the d-orbitals from the Ag-NPs, leading to the constructive rehybridization of rGO and GNPs. In our study, Ag-NPs/rGO are compared with a support lacking oxygenated groups in the lattice, such as commercial GNPs (Sigma-Aldrich), to produce Ag-NPs/GNPs. This comparison maintains constructive sp 2 rehybridization, preserving the characteristic properties of rGO (ID-nano) and graphene nanoplatelets, including commercial GNPs (Sigma-Aldrich). Notably, oxygenated groups from rGO exhibit greater availability for exchanging oxo and hydroxy defects for Ag-NPs compared with GNPs (Sigma-Aldrich). The resulting Ag-NPs/rGO and Ag-NPs/GNP systems are thoroughly physicochemically characterized, employing techniques such as Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy, high-resolution transmission electron microscopy, and scanning transmission electron microscopy, revealing the successful integration of Ag-NPs with minimal alteration to the carbon lattice. Subsequent antimicrobial evaluation against Escherichia coli (E. coli) demonstrates significant activity, with Ag-NPs/rGO and Ag-NPs/GNPs registering similar minimum inhibitory concentrations of 50 μg mL −1 . This study underscores the potential of our metal−organic hybrid systems as antimicrobial agents and provides insights into the constructive rehybridization process, paving the way for diverse applications in the biomedical and environmental fields.

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“…55 Alternatively, the biosynthesized spherical-shaped AgNPs from the leaf extract of Solanum khasianum with an average size of 15.96 nm showed 79.56% alpha-amylase inhibition at the concentration of 1 mg mL −1 . 56 In another study, the spherical-shaped AgNPs were fabricated in the range of 10.34 to 22.12 nm by using the leaf extract of Muntingia calabura . The phytofabricated AgNPs showed 78.16% alpha-amylase inhibition at the concentration of 1 mg mL −1 .…”

Section: Resultsmentioning

confidence: 99%

Bioinspired green-synthesized silver nanoparticles: in vitro physicochemical, antibacterial, biofilm inhibitory, genotoxicity, antidiabetic, antioxidant, and anticoagulant performance

Barabadi,

Hosseini,

Jounaki

et al. 2023

Mater. Adv.

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Eco-friendly Green Synthesis of Silver Nanoparticles from Leaf Extract of Solanum khasianum: Optical Properties and Biological Applications

Cited by 36 publications

References 65 publications

Analysis of Crystallographic Structures and Properties of Silver Nanoparticles Synthesized Using PKL Extract and Nanoscale Characterization Techniques

Analysis of Crystallographic Structures and Properties of Silver Nanoparticles Synthesized Using PKL Extract and Nanoscale Characterization Techniques

Ag-NP-Decorated Carbon Nanostructures: Synthesis, Characterization, and Antimicrobial Properties

Bioinspired green-synthesized silver nanoparticles: in vitro physicochemical, antibacterial, biofilm inhibitory, genotoxicity, antidiabetic, antioxidant, and anticoagulant performance

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