‘Green’ synthesis of metals and their oxide nanoparticles: applications for environmental remediation

Journal of Nanobiotechnology, Journal Year: 2018, Volume and Issue: 16(1)

Published: Oct. 30, 2018

In materials science, "green" synthesis has gained extensive attention as a reliable, sustainable, and eco-friendly protocol for synthesizing wide range of materials/nanomaterials including metal/metal oxides nanomaterials, hybrid materials, bioinspired materials. As such, green is regarded an important tool to reduce the destructive effects associated with traditional methods nanoparticles commonly utilized in laboratory industry. this review, we summarized fundamental processes mechanisms approaches, especially metal oxide [e.g., gold (Au), silver (Ag), copper (CuO), zinc (ZnO)] using natural extracts. Importantly, explored role biological components, essential phytochemicals (e.g., flavonoids, alkaloids, terpenoids, amides, aldehydes) reducing agents solvent systems. The stability/toxicity surface engineering techniques achieving biocompatibility are also discussed. Finally, covered applications such synthesized products environmental remediation terms antimicrobial activity, catalytic removal pollutants dyes, heavy ion sensing.

Language: Английский

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Biological Synthesis of Nanoparticles from Plants and Microorganisms

Trends in biotechnology, Journal Year: 2016, Volume and Issue: 34(7), P. 588 - 599

Published: March 2, 2016

Language: Английский

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Green Synthesis of Metallic Nanoparticles via Biological Entities

Materials, Journal Year: 2015, Volume and Issue: 8(11), P. 7278 - 7308

Published: Oct. 29, 2015

Nanotechnology is the creation, manipulation and use of materials at nanometre size scale (1 to 100 nm). At this there are significant differences in many material properties that normally not seen same larger scales. Although nanoscale can be produced using a variety traditional physical chemical processes, it now possible biologically synthesize via environment-friendly green chemistry based techniques. In recent years, convergence between nanotechnology biology has created new field nanobiotechnology incorporates biological entities such as actinomycetes algae, bacteria, fungi, viruses, yeasts, plants number biochemical biophysical processes. The synthesis processes have potential boost nanoparticles production without harsh, toxic, expensive chemicals commonly used conventional aim review provide an overview trends synthesizing their applications.

Language: Английский

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Green Synthesis of Metallic Nanoparticles and Their Prospective Biotechnological Applications: an Overview

Biological Trace Element Research, Journal Year: 2020, Volume and Issue: 199(1), P. 344 - 370

Published: May 6, 2020

Language: Английский

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Zinc oxide nanoparticles: Biological synthesis and biomedical applications

Ceramics International, Journal Year: 2016, Volume and Issue: 43(1), P. 907 - 914

Published: Oct. 12, 2016

Language: Английский

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Medicinal Plant Leaf Extract and Pure Flavonoid Mediated Green Synthesis of Silver Nanoparticles and their Enhanced Antibacterial Property

Scientific Reports, Journal Year: 2017, Volume and Issue: 7(1)

Published: Nov. 14, 2017

The rewards of using plants and plant metabolites over other biological methods for nanoparticle synthesis have fascinated researchers to investigate mechanisms metal ions uptake bio-reduction by plants. Here, green chemistry were employed the silver nanoparticles (AgNPs) leaf extracts Ocimum Sanctum (Tulsi) its derivative quercetin (flavonoid present in Tulsi) separately as precursors role biomolecules Tulsi formation AgNPs from cationic under different physicochemical conditions such pH, temperature, reaction time reactants concentration. size, shape, morphology, stability resultant investigated optical spectroscopy (absorption, photoluminescence (PL), PL-lifetime Fourier transform infrared), X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM). enhanced antibacterial activity against E-Coli gram-negative bacterial strains was analyzed based on zone inhibition minimal inhibitory concentration (MIC) indices. results characterization techniques showed that synthesized both extract neat followed same optical, morphological, characteristics, demonstrating (quercetin) are mainly responsible reduction nanoparticles.

Language: Английский

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Green synthesis of metal and metal oxide nanoparticles from plant leaf extracts and their applications: A review

Green Processing and Synthesis, Journal Year: 2020, Volume and Issue: 9(1), P. 304 - 339

Published: June 18, 2020

Abstract Metal nanoparticles (MNPs) and metal oxide (MONPs) are used in numerous fields. The new nano-based entities being strongly generated incorporated into everyday personal care products, cosmetics, medicines, drug delivery, clothing to impact industrial manufacturing sectors, which means that nanomaterials commercialization nano-assisted device will continuously grow. They can be prepared by many methods such as green synthesis the conventional chemical methods. Green includes infinite accession produce MNPs MONPs with demanding properties. structure–function relationships between key information for life cycle evaluation lead production of high execution nanoscale materials gentle environmentally friendly. Majority plants have features sustainable renewable suppliers compared microbes enzymes, they ability pick up almost 75% light energy transform it energy, contain chemicals like antioxidants sugars, play fundamental roles manufacture nanoparticles. Plants considered main factory MONPs, until now, different plant species been study this, but determined conditions should taken consideration execute this preparation. In study, we focus on biosynthesis procedures synthesize including comparison classical chemistry well several orientation from parts, especially leaf extracts. reducing compounds is preferred choice noble metals – ions reduced corresponding absence any other under microwave irradiation using benign solvent, water. Noble gold (Au), silver (Ag), platinum (Pt), palladium (Pd) copper (Cu) nickel (Ni), characterized their optical, electronic, mechanical, magnetic, properties, leading technological applications. agents suitable candidates MNPs. purpose research give a background nanotechnology prospective evolution, pertinent concerns appeared related extracts, nanoparticle formation mechanism, importance flavonoids, vitamin B 2 , ascorbic acid (vitamin C), phenolic MNP MONP production. traditional sorghum beers produced countries Africa, diversity process may depend geographic localization. These very rich calories; B-group vitamins thiamine, folic acid, riboflavin, nicotinic acid; essential amino acids lysine. However, Western more attractive than beers. poor hygienic quality, organoleptic variations, shorter shelf Many studies carried out documented African countries, microbiological biochemical technologies processes, synthetic characteristics (ikigage, merissa, doro, dolo, pito, amgba, tchoukoutou). excellent resources greener biomaterials considerable advances achieved fields biotechnology gene transfer. manufactured biological great application pharmaceutical industry novel pharmaceuticals preparation, delivery personification procedures, functional nanodevices.

Language: Английский

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A comprehensive review on green synthesis of nature-inspired metal nanoparticles: Mechanism, application and toxicity

Journal of Cleaner Production, Journal Year: 2020, Volume and Issue: 272, P. 122880 - 122880

Published: July 13, 2020

Language: Английский

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Review on metal nanoparticles as nanocarriers: current challenges and perspectives in drug delivery systems

Emergent Materials, Journal Year: 2022, Volume and Issue: 5(6), P. 1593 - 1615

Published: Jan. 4, 2022

Language: Английский

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Green route to synthesize Zinc Oxide Nanoparticles using leaf extracts of Cassia fistula and Melia azadarach and their antibacterial potential

Scientific Reports, Journal Year: 2020, Volume and Issue: 10(1)

Published: June 3, 2020

Abstract Development of plant based nanoparticles has many advantages over conventional physico-chemical methods and various applications in medicine biology. In present study, zinc oxide (ZnO) (NPs) were synthesized using leaf extracts two medicinal plants Cassia fistula Melia azadarach . 0.01 M acetate dihydrate was used as a precursor respective for NPs synthesis. The structural optical properties investigated by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscope (SEM), ultraviolet-visible spectrophotometer (UV-Vis) dynamic light scattering (DLS). antibacterial potential ZnO examined paper disc diffusion method against clinical strains Escherichia coli ( E. ) Staphylococcus aureus S. on the zone inhibition minimal inhibitory indices (MIC). Change color reaction mixture from brown to white indicated formation NPs. UV peaks at 320 nm 324 nm, XRD pattern matching that JCPDS card confirmed presence pure FTIR further bioactive functional groups involved reduction bulk SEM analysis displayed shape be spherical whereas DLS showed their size range 3 68 nm. C. M. mediated strong antimicrobial activity pathogens compared standard drugs, suggesting synthesis can an excellent strategy develop versatile eco-friendly biomedical products.

Language: Английский

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