Microwave-assisted synthesis of catalytic silver nanoparticles by hyperpigmented tomato skins: A green approach

Carbone, Katya; Angelis, Arianna De; Meisina, Claudia; Santangelo, Enrico; Macchioni, Valentina; Cacciotti, Ilaria; Petrella, Greta; Cicero, Daniel O.; Micheli, Laura

doi:10.1016/j.lwt.2020.110088

Cited by 19 publications

(12 citation statements)

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“…The maximum absorbance increased in intensity as a function of irradiation time. These results suggested that the content of AgNPs increased as irradiation time increased [12]. At 120 s of reaction time, the maximum peak intensity was obtained.…”

Section: Resultsmentioning

confidence: 77%

Biosynthesis of silver nanoparticles using extract of banana peel waste assisted by microwave irradiation

Phoemthaisong

Ksapabutr

Chaiyut

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Silver (Ag) nanoparticles are among the most desirable nanomaterials for a variety of applications, such as lithium-ion battery, water pollution monitoring, photocatalytic water splitting, and medical devices. Their increased production and integration in environmental applications play an important role for nanoscience and nanotechnology in engineering. The synthesis methods of Ag nanoparticles include physical, chemical, and biological routes. In this study, we reported a rapid, eco-friendly, and cost-efficient method to synthesize Ag nanoparticles using an extract of banana peel waste as a reducing and capping agent under microwave radiation. A comparison between the conventional heating method and microwave radiation revealed that the microwave radiation method for the extraction of banana peel waste and the synthesis of Ag nanoparticles required much shorter extraction and reaction times. The effects of extraction conditions (banana peel content and extraction time) and synthesis conditions (silver nitrate concentration and reaction time) on Ag nanoparticles were investigated. The optimum conditions were found to be for the extraction: 50 g/L banana peel-to-water ratio and microwave extraction time of 140 s at 800 W and for the Ag nanoparticles synthesis: microwave reaction time of 120 s at 800 W and 1 mM silver nitrate solution and. Plasmonic Ag nanoparticles with a surface plasmon resonance peak at 420 nm and an average size of about 149 nm were synthesized.

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Section: Resultsmentioning

confidence: 77%

Biosynthesis of silver nanoparticles using extract of banana peel waste assisted by microwave irradiation

Phoemthaisong

Ksapabutr

Chaiyut

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…At higher pH levels, many phenolic functional groups are present, which aids in the conversion of Ag + ions into more Ag 0 . Furthermore, no significant change occurs when the pH exceeds 8 [10,[12][13]. When the AgNO3 solution concentration was increased from 0.5 mM to 2.0 mM, the SPR absorbance increased accordingly.…”

Section: Resultsmentioning

confidence: 98%

“…This suggested that with more Ag + content, more AgNPs could be formed [17]. The highest SPR absorbance suggested that the number of AgNPs has reached its maximum, indicating the completion of the reaction [13][14][15][16]. The size distribution profile and the polydispersity index (PDI) of AgNPs synthesized by microwave heating were studied by the DLS technique, as shown in Figure 2(f).…”

Section: Resultsmentioning

confidence: 99%

Microwave-assisted green synthesis of silver nanoparticles using extract of mint leaves

Thanasakonpong,

Ksapabutr,

Panapoy

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Silver nanoparticles are widely used in areas such as biosensing, hydrogen production, electronics, photovoltaics, antimicrobials, and biomedical engineering applications. Biological synthesis is regarded as a safe and non-toxic process, but its main disadvantage is the slow processing time. The mint leaf extract can act as both a reducing and stabilizing agent for the biological synthesis of silver nanoparticles. In this work, a rapid and green method for the microwave-assisted biological synthesis of silver nanoparticles was investigated using an aqueous leaf extract of mint as a biosource of cost-effective, non-hazardous reducing and stabilizing agents. The optimum conditions for microwave extraction of mint leaves were 220 s at 800 W and a 5 g/L mint-to-water ratio. Meanwhile, the optimal conditions for the biological synthesis of silver nanoparticles were as follows: concentration of silver nitrate solution = 2 mM, microwave reaction time = 100 s at 800 W, and pH = 8. The silver nanoparticles obtained by the microwave heating process showed a surface plasmon band centered at 420 nm with a higher peak height than those prepared by the conventional heating process. Dynamic light scattering analysis has shown the synthesized silver nanoparticles to have an average diameter of 54 nm.

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“…The results obtained, mainly by FT-IR, predict that the compounds reduce silver ions through functional groups -CO, -OH, and -NH present in molecules constituting the waste and that played a crucial role in the nanoparticle formation and stabilization. Carbone et al [228] synthesized nanoparticles from the extract of Mimusops coriacea, which was mainly attributed to the chlorophyll and carotenoids present in the extract. They predict that the formation of silver nanoparticles was carried out by a redox process, where the donor species of electrons is oxidized in the presence of the metallic salts in the solution.…”

Section: Mechanistic Aspects Of Green Synthesis Of Nanoparticlesmentioning

confidence: 99%

Trends in Sustainable Green Synthesis of Silver Nanoparticles Using Agri‐Food Waste Extracts and Their Applications in Health

Rodríguez-Félix

Graciano-Verdugo

Moreno-Vásquez

et al. 2022

Journal of Nanomaterials

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Currently, silver nanoparticles have boomed in food and medicine due to their potential applications, such as antibacterial and anticancer activity. These nanoparticles have been synthesized by several techniques; however, green synthesis has taken on greater importance due to the non-generation of toxic residues. Green synthesis has been constructed from plant parts; however, the new trend comprises the use of agri-food waste extracts, known as sustainable green synthesis. The use of agri-food waste reduces environmental pollution and confers on its added value. The main waste generated is found in agricultural crops and industry from fruits and vegetables, cereal, bagasse from the food industry, and alcoholic beverages, oil cake of the oil industry, among others. The main biomolecules in agri-food waste extracts include phenolic compounds, alkaloids, terpenes, cellulose, hemicellulose, lignin, and proteins, whose function is to reduce the agents of the silver ion. Therefore, the objective of this review was to promote the use of agri-food waste for the sustainable green synthesis of silver nanoparticles and its application as antibacterial and anticancer agents.

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Microwave-assisted synthesis of catalytic silver nanoparticles by hyperpigmented tomato skins: A green approach

Cited by 19 publications

References 50 publications

Biosynthesis of silver nanoparticles using extract of banana peel waste assisted by microwave irradiation

Biosynthesis of silver nanoparticles using extract of banana peel waste assisted by microwave irradiation

Microwave-assisted green synthesis of silver nanoparticles using extract of mint leaves

Trends in Sustainable Green Synthesis of Silver Nanoparticles Using Agri‐Food Waste Extracts and Their Applications in Health

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