Green Synthesis of Metallic Nanoparticles from Natural Resources and Food Waste and Their Environmental Application

Abdel‐Shafy, Hussein I.; Mansour, Mona S. M.

doi:10.1002/9781119418900.ch11

Cited by 26 publications

(24 citation statements)

References 159 publications

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“…During the biosynthesis of green ZnO nanoparticles, zinc nitrate hexahydrate (Zn(NO 3 ) 2 ·6H 2 O) or zinc acetate (Zn(OOCCH 3 ) 2 ) are typically used as precursors while different plant extracts act as bio-reductants [ 90 , 91 ].…”

Section: General Background On Antimicrobial and Anti-biofilm Metalli...mentioning

confidence: 99%

A Critical Review of the Antimicrobial and Antibiofilm Activities of Green-Synthesized Plant-Based Metallic Nanoparticles

et al. 2022

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Metallic nanoparticles (MNPs) produced by green synthesis using plant extracts have attracted huge interest in the scientific community due to their excellent antibacterial, antifungal and antibiofilm activities. To evaluate these pharmacological properties, several methods or protocols have been successfully developed and implemented. Although these protocols were mostly inspired by the guidelines from national and international regulatory bodies, they suffer from a glaring absence of standardization of the experimental conditions. This situation leads to a lack of reproducibility and comparability of data from different study settings. To minimize these problems, guidelines for the antimicrobial and antibiofilm evaluation of MNPs should be developed by specialists in the field. Being aware of the immensity of the workload and the efforts required to achieve this, we set out to undertake a meticulous literature review of different experimental protocols and laboratory conditions used for the antimicrobial and antibiofilm evaluation of MNPs that could be used as a basis for future guidelines. This review also brings together all the discrepancies resulting from the different experimental designs and emphasizes their impact on the biological activities as well as their interpretation. Finally, the paper proposes a general overview that requires extensive experimental investigations to set the stage for the future development of effective antimicrobial MNPs using green synthesis.

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Section: General Background On Antimicrobial and Anti-biofilm Metalli...mentioning

confidence: 99%

A Critical Review of the Antimicrobial and Antibiofilm Activities of Green-Synthesized Plant-Based Metallic Nanoparticles

et al. 2022

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“…In the nucleation stage, the reductant plays a vital role, but in the growth stage, the stabilizers play a key role; however, in this work, citric acid in the lemon juice extract plays both key roles. Based on the LaMer mechanism, in the synthesis approach of the metal nanoparticle using plant extracts, there are three main phases: activation phase, growth phase, and termination phase [48][49][50][51].…”

Section: E Formation Mechanism Of Agmentioning

confidence: 99%

“…is process is as Ostwald ripening, in which thermodynamic stability of nanoparticles also gets increased. e third phase is the termination phase, which determines the nanoparticle's final shape [48][49][50][51].…”

Section: E Formation Mechanism Of Agmentioning

confidence: 99%

Simple Controlling Ecofriendly Synthesis of Silver Nanoparticles at Room Temperature Using Lemon Juice Extract and Commercial Rice Vinegar

Luu

Cao

Nguyen

et al. 2020

Journal of Nanotechnology

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Silver nanoparticles were prepared in an ecofriendly manner at room temperature via the stepwise-modified Tollens route using the lemon juice extract and commercial rice vinegar. In this work, the lemon juice extract—a natural-origin chemical—was used as a reducing and stabilizing agent, and commercial rice vinegar was used to create a low acidic environment to control the silver nanoparticle growth via the stepwise method. The average dimension of silver nanoparticles was qualitatively evaluated through the UV-Vis spectra via the Mie theory. The X-ray diffraction and field emission scanning electron spectroscopy were employed to study the purity, the crystal structure, and the morphology of samples, respectively. Due to the weak activity and low purity of ecofriendly chemicals, the reaction and baking times strongly affect the preparation efficiency in obtaining small-size silver nanoparticles (∼40 nm). The highest efficiency was obtained with 24 h reaction time and 48 h baking time. The bimodal distribution of the size of silver nanoparticles was observed by UV-Vis analysis and field emission scanning electron microscopy. The obtained small-size silver nanoparticles (∼40 nm) have a uniform dimension. The quality of the obtained silver nanoparticles was evaluated through the conducting properties of silver paint made from ecosynthesized silver nanoparticles which showed a promising prospect to develop green-synthesized silver paint working at room temperature.

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“…erefore, the priority direction for the development of green chemical technology and engineering is the search and use of recycling materials for the receiving of organic compounds (plant extracts) from the waste of vegetable raw materials as well as the study of their composition and physicochemical properties. Further obtained extracts of "green" organic compounds can be used in the production of "green" synthesis of nanoparticles [7][8][9][10][11], for inhibition of corrosion and scaling of metals in corrosive media [12][13][14][15][16] and production of food additives and valuable nutrients, as a natural preservative and antioxidant in cosmetic products [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Valorization of Food Waste to Produce Eco‐Friendly Means of Corrosion Protection and “Green” Synthesis of Nanoparticles

Vasyliev

Vorobyova

2020

Advances in Materials Science and Engineering

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Agrifood by-products are a key element within Europe’s sustainable strategies. Valorization and reuse of zero-waste technologies are becoming more popular, and they are commonly named as “second-generation food waste management.” The present study is directed to the valuable extracts of “green” organic compounds from the by-products of fruit and berry/vegetable crops, which can be revalorized in sustainable chemical technology and engineering, namely, in the production of “green” synthesis of nanoparticles and for the inhibition of corrosion and scaling of metals in corrosive media. Numerous types of agrifood by-products (rapeseed pomace, sugar beet pulp, fodder radish cake, grape pomace, and pomegranate peels) were investigated. The waste extracts for corrosion and scale inhibitors of mild steel in tap water were prepared by the conventional extraction method that uses 2-propanol and characterized by gas chromatography-mass spectroscopy (GC-MS). Inhibition of scaling and corrosion was investigated in thermal scaling conditions on the surface of the electrode manufactured from mild steel. The LPR technique was applied to measure the corrosion rate, and the scaling rate was determined gravimetrically. The extracts were found to inhibit the corrosion rate 2-3 times, while only radish cake extract inhibited both the corrosion and scaling rates. The waste extracts to produce nanoparticles were prepared by the ultrasound-assisted water extraction with subsequent oxidation by oxygen purge and characterized by liquid chromatography-mass spectroscopy (LC-MS). The aqueous grape pomace and pomegranate peel extracts were screened for total phenolic content (TPC) and total flavonoid content (TFC). The reduction capacity of the extracts was assessed using ferric reducing power (FRAP) and phosphomolybdenum (PM) assays. AgNPs were characterized by UV-Vis spectroscopy, dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), and energy-dispersive X-ray spectroscopy (EDX) analysis. The particle size of AgNPs ranged between 40 and 50 nm. The antimicrobial activity of AgNPs was tested against Escherichia coli using the agar diffusion method and optical density.

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Green Synthesis of Metallic Nanoparticles from Natural Resources and Food Waste and Their Environmental Application

Cited by 26 publications

References 159 publications

A Critical Review of the Antimicrobial and Antibiofilm Activities of Green-Synthesized Plant-Based Metallic Nanoparticles

A Critical Review of the Antimicrobial and Antibiofilm Activities of Green-Synthesized Plant-Based Metallic Nanoparticles

Simple Controlling Ecofriendly Synthesis of Silver Nanoparticles at Room Temperature Using Lemon Juice Extract and Commercial Rice Vinegar

Valorization of Food Waste to Produce Eco‐Friendly Means of Corrosion Protection and “Green” Synthesis of Nanoparticles

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