Environmental and biomedical applications of AgNPs synthesized using the aqueous extract of Solanum surattense leaf

Mani, M.; Chang, Jih-Hsing; Gandhi, Arumugam Dhanesh; Vizhi, Dhandapani Kayal; Pavithra, S.; Mohanraj, K.; Mohanbabu, B.; Babu, B.; Balachandran, S.; Kumaresan, S.

doi:10.1016/j.inoche.2020.108228

Cited by 41 publications

(18 citation statements)

References 34 publications

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“…Numerous techniques like oxidation, adsorption, ion-exchange, chemical coagulation, and biological photocatalysis are available to overcome this issue [22]. AgNPs from Phaseolus vulgaris have recently been shown to degrade 4-nitrophenol, reactive red 141 dyes [23], and other fabricated AgNPs designed from Solanum surattense, which are utilized as an efficient catalyst towards Rhodamine B (RhB) [24]. Green synthesis of AgNPs has a wide range of applications for dye removal in a practical operating system that produces less sludges than other methods.…”

Section: Introductionmentioning

confidence: 99%

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

et al. 2021

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Green synthesis of silver nanoparticles (AgNPs) employing an aqueous plant extract has emerged as a viable eco-friendly method. The aim of the study was to synthesize AgNPs by using plant extract of Sanvitalia procumbens (creeping zinnia) in which the phytochemicals present in plant extract act as a stabilizing and reducing agent. For the stability of the synthesized AgNPs, different parameters like AgNO3 concentration, volume ratios of AgNO3, temperature, pH, and contact time were studied. Further, AgNPs were characterized by UV–visible spectroscopy, FT-IR (Fourier Transform Infrared Spectroscopy), XRD (X-ray Diffraction), SEM (Scanning Electron Microscopy), and EDX (Energy Dispersive X-ray Spectrometer) analysis. FT-IR analysis showed that the plant extract contained essential functional groups like O–H stretching of carboxylic acid, N–H stretching of secondary amides, and C–N stretching of aromatic amines, and C–O indicates the vibration of alcohol, ester, and carboxylic acid that facilitated in the green synthesis of AgNPs. The crystalline nature of synthesized AgNPs was confirmed by XRD, while the elemental composition of AgNPs was detected by energy dispersive X-ray analysis (EDX). SEM studies showed the mean particle diameter of silver nanoparticles. The synthesized AgNPs were used for photocatalytic degradation of Orange G and Direct blue-15 (OG and DB-15), which were analyzed by UV-visible spectroscopy. Maximum degradation percentage of OG and DB-15 azo dyes was observed, without any significant silver leaching, thereby signifying notable photocatalytic properties of AgNPs.

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Section: Introductionmentioning

confidence: 99%

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

et al. 2021

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“…The reduction and wetting of photochemical compounds in the extracts of great water dock and pu-erh caused the occurrence of a surface plasmon resonance (SPR) peak. This formation of AgNPs is assured with this SPR peak in the UV spectrum [5]. The UV-Vis study allowed us to confirm the presence of AgNPs, as the absorption spectrum was detected, totalling 451.8 nm for AgNPs+KB and 440.8 nm for AgNPs+PE, respectively (Figure 1C).…”

Section: Uv-visible Spectral Studymentioning

confidence: 60%

“…The obtained values make it possible to confirm the effective stability of AgNPs in plant extracts. Biofunctional components in aqueous roots and leaf extracts cause the potential of the synthesised green AgNPs to have a negative value [5]. The negative charge and stability can be attributed to the plant…”

Section: Dynamic Light Scattering Analysismentioning

confidence: 99%

“…Among the various metallic nanoparticles, silver nanoparticles (AgNPs) are stable, and they are widely used in cosmetics, nanomedicine and food processing, as well as being an effective antimicrobial agent. There are many studies in which the properties of AgNPs obtained from plant extracts are investigated [3][4][5][6]. However, there are no published data describing the synthesis of AgNPs in pu-erh green tea leaf and great water dock root extracts.…”

Section: Introductionmentioning

confidence: 99%

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Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts

et al. 2021

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A novel, eco-friendly, and biocompatible method was applied to form silver nanoparticles (AgNPs) in great water dock (Lapathi radix) (KB) and pu-erh (Camellia sinensis) (PE) extracts. The surface plasma resonance peak of green synthesized AgNPs at 451.8 nm for AgNPs+KB and 440.8 nm for AgNPs+PE was observed via spectral analysis of UV absorbance. In this study, double-layered biopolymer films (FUR/CHIT+HGEL) with AgNPs incorporated in KB solution (AgNPs+KB) and AgNPs in PE solution (AgNPs+PE), were successfully prepared using the casting method. The SEM, XRD, zeta potential and size analyses confirmed the presence of AgNP in the films. The addition of AgNPs in plant extracts improved antimicrobial and antioxidant activity and thermal stability, whereas WVTR experienced a decrease. The nanocomposite films’ orange-brown colour may aid in the protection of food products against UV rays. The composite films demonstrated antibacterial activity against food-borne pathogens and may offer potential in food packaging applications.

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“…In the biological method of synthesis, the nanoparticles are obtained by utilizing bacteria, fungi, and plant materials. The synthesis of nanoparticles with plants extract is comparatively more economical and is being used widely (Prabhu & Poulose 2012;Prasad 2014;Vijayaraghavan & Ashok Kumar 2017;Anjali Das et al 2020;Mani et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Optimization of operational parameters for the treatment of roof-harvested rainwater with biologically synthesised nanosilver coated on sand

Anoob

Meera

2021

Water Supply

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Rainwater is a major source of drinking water in developing countries. Roof-harvested rainwater is generally microbiologically contaminated and thus need to be treated effectively to meet drinking standards. Filtration of rainwater with silver nanoparticles coated on sand enhances the microbial removal efficiency. In this study, the filtration parameters of treating rainwater with biologically synthesized nanosilver coated sand are optimized. Of the various synthesis methods, the biological method of was chosen due to benefits such as cost-effectiveness and eco-friendly nature. Silver nanoparticles was synthesised using with papaya fruit extract and then coated on sand. The synthesized nanosilver coated sand was subjected to characterization methods such as Energy Dispersive Spectroscopy and X-Ray Diffraction analysis. With silver coated sand as control, multiple long duration tests were performed to treat rainwater with nanosilver coated sand to find the optimal values for filtration parameters such as filter bed depth and Empty Bed Contact Time (EBCT). The crystallite size of the nanosilver coated sand was found to be 43.8 nm. The optimal values for filter bed depth and EBCT was found to be 12 cm and 15minutes respectively. The rainwater treated with nanosilver coated sand met drinking water standards IS 10500: 2012 until the media got exhausted.

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Environmental and biomedical applications of AgNPs synthesized using the aqueous extract of Solanum surattense leaf

Cited by 41 publications

References 34 publications

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts

Optimization of operational parameters for the treatment of roof-harvested rainwater with biologically synthesised nanosilver coated on sand

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