Statistical optimization of silver nanoparticle synthesis by green tea extract and its efficacy on colorimetric detection of mercury from industrial waste water

Prema, P.; Veeramanikandan, V.; Rameshkumar, Karuna; Gatasheh, Mansour K.; Hatamleh, Ashraf Atef; Ravindran, Balasubramani; Paulraj, Balaji

doi:10.1016/j.envres.2021.111915

Cited by 63 publications

(21 citation statements)

References 67 publications

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“…15 To increase the sensitivity, speed, accuracy, efficiency, and cost-effectiveness of colorimetric sensors, various types of advanced nanoparticles (NPs) have been utilized in this matter. [16][17][18][19][20][21][22][23] Nanostructures have attracted much attention in the eld of metal ion analysis due to their unique optical traits. The basic principle of nanoparticle-based detection of metal ions is the accumulation of NPs because of interaction with heavy metal ions and their color change.…”

Section: Introductionmentioning

confidence: 99%

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Colorimetric and naked-eye detection of arsenic(iii) using a paper-based microfluidic device decorated with silver nanoparticles

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Colorimetric and naked-eye detection of arsenic(iii) using a paper-based microfluidic device decorated with silver nanoparticles

et al. 2022

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“…However, not even all antioxidants reduce Fe3+ at a rate fast enough to be measured. This ferric reduction can also induced by the bioactive phytochemicals [40] such as saponins, and other steroidal molecules present over the surface of AgNPs [41].…”

Section: Resultsmentioning

confidence: 99%

An Assessment of Anticancer Activity (MCF‐7) and Free Radicals Scavenging Potential of Ferula Asafoetida Synthesized AgNPs through In Vitro Analyses

Thành

Chinnathambi

Alahmadi

et al. 2022

Journal of Nanomaterials

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Nanomaterials are increasingly being used in pharmaceutical industry to treat a variety of disorders and diseases. Hence, the aim of this research was to evaluate their antioxidant and anticancer activity of presynthesized and characterized plant-based AgNPs against ferric, DPPH, H2O2, and ABTS free radicals and MCF-7 cell line. Interestingly, the antioxidants assay results revealed that the increased concentration (100 μg mL-1) of AgNPs has remarkable antioxidant ability on ferric (78.20%), DPPH (89.61%), H2O2 (82.34%), and ABTS (67.95%) free radicals. These scavenging activities were almost close to the free radicals scavenging ability of vitamin C (ascorbic acid). Similarly, test AgNPs showed considerable cytotoxicity (83.15%) against MCF-7 cell line, and it was partially comparable with the cytotoxicity activity (91.35%) of positive control (Doxorubicin). These findings indicate that plant-mediated AgNPs have significant antioxidant and anticancer activity, and thus may be considered for biomedical applications pending the results of some in vivo experiments.

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“…1 and stored at 4ºC for further use. [3][4][5] Silver nanoparticles synthesis by using Baliospermum extract Phenolic extract of Baliospermum leaves were mixed with Silver nitrate solution and stirred at 700 RPM for 2 hrs. Color of the solution changed from yellowish to reddish-brown.…”

Section: Extraction Of Phenolic Compounds From Baliospermum Aqueous E...mentioning

confidence: 99%

Biosynthesis of Silver Nanoparticles from Polyphenolic Extract of Baliospermun solanifolium using Central Composite Design

Nikam¹,

Chaudhari²

2022

Pharmacogn. Res.

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Background: Plant extracts contain a considerable amount of polyphenols. These polyphenols act as reducing, capping, and stabilizing agents in the formation of silver nanoparticles. Objectives:The objective of the current study is biosynthesis, optimization, and evaluation of silver nanoparticles from the polyphenolic extract of Baliospermum solanifolium. Materials and Methods: Central composite design (CCD) was used to synthesize silver nanoparticles (AgNPs) from the polyphenolic extract of Baliospermum. Preliminary screening was done to find out the upper and lower limits for the optimization study. Four independent variables like Silver nitrate concentrations (mM), Baliospermum extract (%), stirring time (min), and stirring rate (RPM) were employed. As per the design expert, 30 experiments were performed and their effects on dependent variables were listed. Analysis of synthesized AgNPs was done by visual observation, UV-vis Spectroscopy, Zeta potential, X-ray Diffraction (XRD), FTIR, FESEM, etc. Results: The development of Baliospermum silver nanoparticles was confirmed by a color change from pale yellow to dark brown. Characteristic peak of silver nanoparticles observed at 432 nm. −15 mV Zeta potentials confirmed the stability of silver nanoparticles. The sizes of the produced nanoparticles were measured using a FESEM and ranged from 70 to 140 nm. The crystalline nature of nanoparticles was confirmed with the help of X-ray crystallography. FTIR data strongly revealed the presence of phenolic compounds in the reduction, stabilization, and biosynthesis of AgNPs. Conclusion: Major Optimized factors offered by the Central composite design were 10mM AgNO 3 , 10 % Baliospermum extract, 150 min, and 700 rpm. As per the data collected from FTIR and HPLC, silver nanoparticles could be capped with major phenolic groups like ellagic acid, catechins, and quercetin.

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Statistical optimization of silver nanoparticle synthesis by green tea extract and its efficacy on colorimetric detection of mercury from industrial waste water

Cited by 63 publications

References 67 publications

Colorimetric and naked-eye detection of arsenic(iii) using a paper-based microfluidic device decorated with silver nanoparticles

Colorimetric and naked-eye detection of arsenic(iii) using a paper-based microfluidic device decorated with silver nanoparticles

An Assessment of Anticancer Activity (MCF‐7) and Free Radicals Scavenging Potential of Ferula Asafoetida Synthesized AgNPs through In Vitro Analyses

Biosynthesis of Silver Nanoparticles from Polyphenolic Extract of Baliospermun solanifolium using Central Composite Design

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