Biomedical and catalytic applications of agri-based biosynthesized silver nanoparticles

Garg, Rajni; Rani, Pooja; Garg, Rishav; Khan, Mohammad Amir; Khan, Nadeem Ahmad; Khan, Afzal Husain; Américo-Pinheiro, Juliana Heloísa Pinê

doi:10.1016/j.envpol.2022.119830

Cited by 28 publications

(6 citation statements)

References 103 publications

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“…The majority of NPs utilized in consumer products are metal and metal oxide NPs. Metallic NPs, such as Ag NPs, are extensively used for their antimicrobial properties in wound dressings, drug delivery, , textiles including clothing, ,, and food packaging. , They also differ from their bulk counterpart which is largely inert as Ag NPs have high reactivities and have been used for the catalytic synthesis of organic compounds in addition to the degradation of pollutants in water . Additionally, Ag NPs have been incorporated into photovoltaics to enhance the efficiency of solar cells by improving light absorption and electron transport. , Metal oxide NPs, including CeO 2 , CuO, and ZnO NPs, are also commonly used in biomedical, electronic, energy, and agricultural applications due to changes in their electronic and optical properties.…”

Section: Introductionmentioning

confidence: 99%

“…Their small size often creates high surface area-to-volume ratios that result in novel properties and high reactivities. For example, silver is typically inert, but when scaled down to produce Ag NPs, it becomes catalytic or can have antimicrobial properties. − However, these high reactivities make NPs highly dynamic when they enter the environment, either intentionally through agricultural applications or unintentionally through improper disposal of products or devices containing NPs. Within the environment, a NP may be exposed to oxygenated or deoxygenated water sources, natural organic matter (NOM), biological organisms, and other macromolecules that can impact their transformations.…”

Section: Introductionmentioning

confidence: 99%

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Review of Oxidative Dissolution and Sulfidation of Select Nanoparticles in the Environment: Impact on Applications

O’Keefe,

Haynes

2024

ACS Appl. Nano Mater.

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Nanoparticles (NPs) are increasingly being used in medical, electronic, energy, and agricultural applications due to their unique properties that often arise due to the high surface area-to-volume ratio. However, this characteristic along with the high reactivity of NPs make these materials highly dynamic in environmental settings. Thus, several transformations can take place when these materials enter the environment that determines their transport, toxicity, and fate of them in our environment. These transformations, and more specifically oxidative dissolution and sulfidation, are directly impacted by the characteristics that a NP has in addition to the surrounding environmental conditions. Therefore, this review aims to summarize how NP characteristics (size, coatings, etc.) and other important environmentally relevant conditions (oxic/anoxic waters, natural organic matter, etc.) impact the oxidative dissolution and sulfidation of several metal and metal oxide NPs. The impact of these factors is crucial to understanding and predicting the environmental risks of these materials in a wide range of applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Review of Oxidative Dissolution and Sulfidation of Select Nanoparticles in the Environment: Impact on Applications

O’Keefe,

Haynes

2024

ACS Appl. Nano Mater.

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“…Nanoscale materials have many advantages over bulk materials, including greater optical and electrical conductivity, enhanced catalytic activity, and a higher surface-area-to-volume ratio. Among the many types of nanomaterials, silver nanoparticles (Ag NPs) have garnered a lot of interest because of their wide range of potential uses in fields such as catalysis, biosensors, electronics, adsorption, and biomedical engineering [16,17]. The synthesis of Ag NPs is typically accomplished by electrochemical procedures, physical radiation, and chemical reduction [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles’ Biogenic Synthesis Using Caralluma subulata Aqueous Extract and Application for Dye Degradation and Antimicrobials Activities

Alamier,

Hasan,

Syed

et al. 2023

Catalysts

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The issue of organic contaminants in water resulting from industrial, agricultural, and home activities makes it necessary to effectively address the problems of water scarcity. Using modern technologies that can effectively remove pollutants from wastewater is the way to address this key problem. The use of nanoparticles (NPs) has been advocated due to their unique physical and chemical characteristics and advantageous applications. NPs’ surface stability and synthesis routes are core concerns for environmental remediation and biological applications. In this work, we demonstrated the biogenic synthesis of silver NPs (Ag-CS NPs) by using Caralluma subulata (CS) aqueous extract as a reducing and capping/template agent. The synthesized Ag-CS NPs were characterized by UV-visible absorbance spectroscopy, Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, powdered X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), and Zeta potential. The performance of Ag-CS NPs was evaluated on methylene blue (MB) dye degradation and antibacterial activity tests against bacterial and fungal isolates. The results showed that Ag-CS NPs (0.05%, 20.0 μL) reduced MB by 95.52% within 28 min in the presence of NaBH4 (10.0 mM, 0.980 μL). The degradation of MB followed pseudo zero-order chemical kinetics (R2 = 0.9380), with the reaction rate constant 0.0508 mol L−1 min−1. In addition, Ag-CS NPs were applied as antibacterial agents against 19 bacterial isolates. Ag-CS NPs showed inhibition in both Gram-positive and Gram-negative bacterial, as well as fungal isolates. As a greener ecofriendly approach, multifunctional Ag-CS NPs make a promising candidate for the remediation of contaminated water, as well as for important bioapplications.

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“…Silver nanoparticles (AgNPs) have attracted significant attention due to their characteristics (including high stability and biocompatibility), which have great potential in biosensing, [1][2][3][4][5][6] optics, [7][8][9] electrochemistry, [10][11][12][13] and biomedical applications. [14][15][16][17] Given that the properties of AgNPs can be tuned by their sizes and shapes, controlling their growth is important for applications in various fields. 18,19 Due to its well-defined structure, DNA has linear conformation and good programmability, rendering it a perfect template for nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Reductant-dependent DNA-templated silver nanoparticle formation kinetics

Yang¹,

Jiang²,

Ran³

2023

Phys. Chem. Chem. Phys.

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Biomedical and catalytic applications of agri-based biosynthesized silver nanoparticles

Cited by 28 publications

References 103 publications

Review of Oxidative Dissolution and Sulfidation of Select Nanoparticles in the Environment: Impact on Applications

Review of Oxidative Dissolution and Sulfidation of Select Nanoparticles in the Environment: Impact on Applications

Silver Nanoparticles’ Biogenic Synthesis Using Caralluma subulata Aqueous Extract and Application for Dye Degradation and Antimicrobials Activities

Reductant-dependent DNA-templated silver nanoparticle formation kinetics

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