Green Synthesis of Zinc Nanowires using Spilanthes acmella Leaf Extract

Paul, Nilesh; Khole, Eesha; Jagtap, Swapnil; Tribhuvan, Harshada; Kakde, Gajanan; Kuwar, Pratiksha

doi:10.20510/ukjpb/4/i3/107861

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…The Zinc nanoparticle reaction mixture was incubated for about 24 hours. The reduction of zinc ions to zinc nanoparticles was monitored by a color change of the reaction mixture, which was observed after incubation (Paul et al, 2016). This indicated the synthesis of zinc nanoparticles (Figs.…”

Section: Biosynthesis Of Znnps Using Crassula Multicava Leaf Extractmentioning

confidence: 94%

Zinc Nanoparticles for Contributing Salinity Stress Resilience in Wheat (Triticum aestivum L.)

SHUKLA,

Singh,

Tyagi

et al. 2023

Preprint

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Wheat is the most widely grown food crop in the world. The world is seeing much of its wheat yield decline due to salt stress. This study aimed to evaluate the effectiveness of zinc nanoparticles in improving resilience to salt stress in wheat (Triticum aestivum L.). ZnNP was biosynthesized using Crassula multicava leaf extract as reducing agent and capping agent. The synthesized nanoparticles were characterized to evaluate structural and biochemical aspects. The ZnNPs were found to be irregular in shape at 100nm magnification by TEM analysis. The average size of the biosynthesized ZnNPs was 64.6 nm as evidenced by DLS analysis. The experiment was laid out with a randomized complete block designed and arranged with eight replications in the pots with 5 rows having one row of control and the other 4 rows of different salinity levels such as 100mM, 75mM, 50mM, and 25mM. The crop was subjected to a total 3 treatments; The first NaCl stress was given on emergence of the Tillering stage (30 DAS) and after 2 days of salinity stress period the wheat plant pots were treated with 2mM zinc nanoparticles, second at the Booting stage (58 DAS) and third at Flowering stage. Plants that were not stressed with NaCl and not treated with NPs were considered as controls. Plant growth parameters were recorded. The results obtained showed that the application of ZnNP had a positive effect on all morphological and yield characteristics of wheat plants. The best results were recorded in potted plants subjected to 25 mM NaCl stress and treated with ZnNPs and showed a significant effect compared to the control at p < 0.05. The study concluded that ZnNPs can contribute to enhancing the resilience of wheat to salt stress.

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Section: Biosynthesis Of Znnps Using Crassula Multicava Leaf Extractmentioning

confidence: 94%

Zinc Nanoparticles for Contributing Salinity Stress Resilience in Wheat (Triticum aestivum L.)

SHUKLA,

Singh,

Tyagi

et al. 2023

Preprint

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“…The majority of the studies utilized the green synthesis method to fabricate zinc oxide nanoparticles rather than pure zinc nanostructures. However, zinc nanoparticles were successfully synthesized through the use of Andrographis paniculata, Cestrum nocturnum, Solanum nigrum, and Spilanthes acmella extracts which produced spherical and wire-like morphologies with particle sizes of ranging from 10 to 70 nm [88][89][90][91]. The average particle size of zinc-based nanostructures was found to be approximately 44 nm and possessed spherical morphologies with hexagonal structures (Table S11).…”

Section: Zinc and Zinc Oxide Nanoparticlesmentioning

confidence: 99%

Green Synthesis of Transition-Metal Nanoparticles and Their Oxides: A Review

2021

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In recent years, many researchers have begun to shift their focus onto the synthesis of nanomaterials as this field possesses immense potential that may provide incredible technological advances in the near future. The downside of conventional synthesis techniques, such as co-precipitation, sol-gel and hydrothermal methods, is that they necessitate the use of toxic chemicals, produce harmful by-products and require a considerable amount of energy; therefore, more sustainable fabrication routes are sought-after. Biological molecules have been previously utilized as precursors for nanoparticle synthesis, thus eliminating the negative factors involved in traditional methods. In addition, transition-metal nanoparticles possess a wide scope of applications due to their multiple oxidation states and large surface areas, thereby allowing for a higher reactivity when compared to their bulk counterpart and rendering them an interesting research topic. However, this field is still relatively unknown and unpredictable as the biosynthesis of these nanostructures from fungi, bacteria and plants yield undesired diameters and morphologies, rendering them as redundant when compared to their chemically synthesized counterparts. Therefore, this review aims to obtain a better understanding on the plant-mediated synthesis process of the major transition-metal and transition-metal oxide nanoparticles, and how process parameters—concentration, temperature, contact time, pH level, and calcination temperature affect their unique properties such as particle size, morphologies, and crystallinity.

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