Nanotechnology–General Aspects: A Chemical Reduction Approach to the Synthesis of Nanoparticles

Molecules, Journal Year: 2023, Volume and Issue: 28(13), P. 4932 - 4932

Published: June 22, 2023

The role of nanotechnology is increasingly important in our society. Through it, scientists are acquiring the ability to understand structure and properties materials manipulate them at scale atoms molecules. Nanomaterials forefront rapidly growing field nanotechnology. synthesis nanostructured materials, especially metallic nanoparticles, has attracted tremendous interest over past decade due their unique properties, making these excellent indispensable many areas human activity. These special can be attributed small size large specific surface area which very different from those bulk materials. Nanoparticles sizes shapes needed for applications, so a variety protocols required produce monodisperse nanoparticles with controlled morphology. purpose this review firstly introduce reader basic aspects related and, secondly, discuss greater detail. This article explains concepts nanotechnology, introduces methods synthesizing describes types, possible applications. Of proposed metal chemical reduction usually preferred because it easy perform, cost-effective, efficient, also allows control structural parameters through optimization conditions. Therefore, method discussed more detail—each factor by described detail, i.e., precursors, solvents, reducing agents, stabilizers. that used characterize nanomaterials described. Finally, based on available literature collection, shown how changing parameters/methods affects final characteristics nanoparticles.

Language: Английский

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Understanding the mechanism underlying the green synthesis of Metallic nanoparticles using plant extract(s) with special reference to Silver, Gold, Copper and Zinc oxide nanoparticles

Hybrid Advances, Journal Year: 2025, Volume and Issue: 9, P. 100399 - 100399

Published: Feb. 1, 2025

Language: Английский

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Eco-Friendly Synthesis of Gold Nanoparticles via Tangerine Peel Extract: Unveiling Their Multifaceted Biological and Catalytic Potentials

Heliyon, Journal Year: 2024, Volume and Issue: 11(1), P. e40104 - e40104

Published: Nov. 7, 2024

Recent advancements in nanoscience underscore the transformative potential of nanomaterials environmental and biological applications. In this study, we synthesized gold nanoparticles (Au@TPE NPs) using an eco-friendly cost-effective approach, leveraging tangerine peel extract as both a capping reducing agent. This method presents sustainable alternative to traditional chemical agents. We optimized synthesis parameters, including time (5, 30, 60, 90 min), temperature (25, 40, 60°C), concentration 10, 15, 20 mM) refine size morphology. Characterization via UV-Vis, XRD, FT-IR, EDAX, FESEM, TEM revealed that at 40°C 15 mM exhibited optimal (∼26±5 nm) spherical shape. The Au@TPE NPs demonstrated antibacterial activity against Gram-positive Gram-negative bacteria, with minimum inhibitory concentrations (MIC) 31.25 μg/ml for Klebsiella pneumoniae Escherichia coli, 62.5 Pseudomonas aeruginosa. Notably, they also antifungal Candida albicans 92.7% antioxidant DPPH scavenging assay 250 μg/ml. Photocatalytic tests effectively degraded methyl orange rhodamine B, achieving 88.6% 93.2% degradation under UV light, respectively, 67.3% 74.1% sunlight. These promising catalytic properties suggest significant diverse

Language: Английский

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Breaking Barriers in Eco-Friendly Synthesis of Plant-Mediated Metal/Metal Oxide/Bimetallic Nanoparticles: Antibacterial, Anticancer, Mechanism Elucidation, and Versatile Utilizations

Journal of Nanomaterials, Journal Year: 2024, Volume and Issue: 2024, P. 1 - 48

Published: April 12, 2024

Nanotechnology has emerged as a promising field in pharmaceutical research, involving producing unique nanoscale materials with sizes up to 100 nm via physiochemical and biological approaches. Nowadays more emphasis been given eco-friendly techniques for developing nanomaterials enhance their applications minimize health environmental risks. With the help of green nanotechnology, wide range metal, metal oxide, bimetallic nanoparticles distinct chemical compositions, sizes, morphologies have manufactured which are safe, economical, environment friendly. Due biocompatibility vast potential biomedical (antibacterial, anticancer, antiviral, analgesic, anticoagulant, biofilm inhibitory activity) other fields such (nanofertilizers, fermentative, food, bioethanol production, construction field), garnered significant interest worldwide. The precursors combined natural extracts plants, algae, fungi, bacteria get potent novel Ag, Au, Co, Cu, Fe, Zr, Zn, Ni, Pt, Mg, Ti, Pd, Cd, Bi2O3, CeO2, Co3O4, CoFe2O4, CuO, Fe2O3, MgO, NiO, TiO2, ZnO, ZrO2, Ag-Au, Ag-Cr, Ag-Cu, Ag-Zn, Ag-CeO2, Ag-CuO, Ag-SeO2, Ag-TiO2, Ag-ZnO, Cu-Ag, Cu-Mg, Cu-Ni, Pd-Pt, Pt-Ag, ZnO-CuO, ZnO-SeO, ZnO-Se, Se-Zr, Co-Bi2O3. These plant-mediated possess excellent antibacterial anticancer activity when tested against several microorganisms cancer cell lines. Plants contain essential phytoconstituents (polyphenols, flavonoids, terpenoids, glycosides, alkaloids, etc.) compared sources (bacteria, algae) higher concentration that play vital role development because these plant-phytoconstituents act reducing, stabilizing, capping agent helps nanoparticles. After concluding all findings, this review designed first time way it imparts satisfactory knowledge about together, along mechanisms. Additionally, provides information characterization (UV–vis, FT-IR, DLS, XRD, SEM, TEM, BET, AFM) employed nanoparticles, applications, industries. Hence, various types versatile application diverse is not covered pieces literature.

Language: Английский

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Recent Advancements and Unexplored Biomedical Applications of Green Synthesized Ag and Au Nanoparticles: A Review

International Journal of Nanomedicine, Journal Year: 2024, Volume and Issue: Volume 19, P. 3187 - 3215

Published: April 1, 2024

Abstract: Green synthesis of silver (Ag) and gold (Au) nanoparticles (NPs) has acquired huge popularity owing to their potential applications in various fields. A large number research articles exist the literature describing green Ag Au NPs for biomedical applications. However, these findings are scattered, making it time-consuming researchers locate promising advancements unexplored Unlike other review articles, this systematic study not only highlights recent but also explores The article discusses approaches highlighting emerging developments novel strategies. Then, reviews important synthesized by critically evaluating expected advantages. To expose future direction field, describes NPs. Finally, discuss challenges limitations This will serve as a valuable reference researchers, working on Keywords: nanoparticles, environmental-friendly, applications, potentials

Language: Английский

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Green-route synthesis of ZnO nanoparticles via Solanum surattense leaf extract: Characterization, biomedical applications and their ecotoxicity assessment of zebrafish embryo model

South African Journal of Botany, Journal Year: 2024, Volume and Issue: 167, P. 643 - 662

Published: March 11, 2024

Language: Английский

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Gold nanoparticles-based biosensors: pioneering solutions for bacterial and viral pathogen detection—a comprehensive review

World Journal of Microbiology and Biotechnology, Journal Year: 2024, Volume and Issue: 40(9)

Published: July 16, 2024

Language: Английский

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Phytogenic nanoparticles: synthesis, characterization, and their roles in physiology and biochemistry of plants

BioMetals, Journal Year: 2023, Volume and Issue: 37(1), P. 23 - 70

Published: Nov. 2, 2023

Language: Английский

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Structural, vibrational, optical, and anticancer properties of Hyphaene thebaica‐reduced nano‐lanthanum oxide (La₂O₃)

Applied Organometallic Chemistry, Journal Year: 2023, Volume and Issue: 37(6)

Published: March 27, 2023

Phytoextracts modulated synthesis of nano‐scaled spherical lanthanum oxide nanoparticles (La 2 O 3 NPs) are reported using the aqueous extracts Hyphaene thebaica as a bioreducing and chelating agent. X‐ray diffraction (XRD) pattern revealed sharp peaks single‐phase purity. The Debye–Scherrer approximation indicated an average crystallite size 37 nm, whereas W‐H plot 59 complemented by high‐resolution transmission electron microscopy (HR‐TEM). infrared spectroscopy characteristic La‐O band at 426 648 cm −1 . K‐M function bandgap 5.6 eV, broad intense emission between 345 750 nm. Raman spectra 182, 325, 384, 491 Elemental composition was confirmed energy‐dispersive (EDS) spectrum, spotty rings from selected area (SAED) crystalline nature HT‐La NPs. In addition, NPs were investigated for in vitro antioxidant, anticancer, antiangiogenic, cytotoxic potentials. DPPH free radical scavenging activity highest, that is, 49.54 ± 0.88% 1000 μg/mL. MTT assay on MCF‐7 3T3 cell lines median lethal concentration 114 43 μg/mL, respectively. antiangiogenic effect examined chick chorioallantoic membrane (CAM) inhibition 57.14 0.96% 1000‐μg/mL with IC 50 551 brine shrimp lethality 314.2 Our study indicates cytotoxicity NPs, it further concluded more potent against cells compared cells. Further research biological anticancer studies recommended large‐scale applications La

Language: Английский

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Green synthesis of gold nanoparticles from the extract of Crocus sativus to study the effect of antidepressant in adolescence and to observe its aggressive and impulsive behavior in rat models

South African Journal of Botany, Journal Year: 2024, Volume and Issue: 165, P. 455 - 465

Published: Jan. 9, 2024

Language: Английский

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