Effect of pH on the Environmentally Friendly Fabrication of Silver Nanoparticles Using Rambutan Peel Extract

Phongtongpasuk, Siriporn; Norasingsatorn, Titika; Yongvanich, Niti

doi:10.4028/www.scientific.net/kem.824.149

Cited by 7 publications

(5 citation statements)

References 22 publications

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“…Antioxidant activities including ferric-reducing antioxidant power (FRAP) and DPPH radical scavenging activity were evaluated. These colorimetric methods were carried out as previously described [27].…”

Section: Phytochemical Contentsmentioning

confidence: 99%

Effect of biosynthesised silver nanoparticles as sterilant on physiological and biochemical characteristics in micropropagation of Musa sapientum L.

Phongtongpasuk,

Liamnimit,

Buakaew

et al. 2024

Adv. Nat. Sci: Nanosci. Nanotechnol.

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Green synthesis of silver nanoparticles (AgNPs) using fruit peel extract has gained considerable interest, as it is an eco-friendly and cost-effective method. However, studies on the use of biosynthesised AgNPs to sterilise plant tissue culture medium as an alternative to autoclaving are limited. Thus, this study presented a biogenic method for synthesising AgNPs using mangosteen peel extract. The biosynthesised AgNPs were characterised by different spectroscopic and microscopic methods, including UV-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, and energy dispersive x-ray spectroscopy. The results showed that the phytochemical constituents in the mangosteen peel extract (MPE) helped to reduce Ag+ from AgNO3 to metallic silver (Ag0) and stabilise the particles. The formation of biogenic AgNPs was monitored by UV-vis demonstrating a characteristic peak at 425 nm. The AgNPs were spherical and crystalline. The size distribution of the biogenic AgNPs was 5–47 nm with an average diameter of 23.1 ± 6.8 nm. To evaluate the potential of the AgNPs for use as an alternative method to sterilise the culture medium, the antimicrobial activity of the biosynthesised AgNPs (0.1, 1, 10, 100, and 1000 mg l−1) was tested in the banana culture medium. The most feasible concentration of AgNPs to decontaminate the culture medium was 100 mg l−1. Moreover, the results demonstrated that adding 100 mg l−1 AgNPs to the culture medium promoted the growth of the plantlets without any toxic effects. Thus, biogenic AgNPs are a potential biocide to sterilise in vitro banana culture medium.

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Section: Phytochemical Contentsmentioning

confidence: 99%

Effect of biosynthesised silver nanoparticles as sterilant on physiological and biochemical characteristics in micropropagation of Musa sapientum L.

Phongtongpasuk,

Liamnimit,

Buakaew

et al. 2024

Adv. Nat. Sci: Nanosci. Nanotechnol.

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“…The green synthesized ZnO NPs maintained their antibacterial activity (MIC and MBC values) throughout the incubation period, irrespective of the cationic salts (Table 4). A modification of the physicochemical conditions such as pH and ionic strength of the solution can affect the intrinsic properties of NPs, such as their size, stability, zeta potential, morphology and shape [16]. Therefore, the stability of the green synthesized ZnO NPs at varying pH values (4,6,8) was estimated by determining their antimicrobial activity against the MDR-EAEC strains.…”

Section: In Vitro Stability Assays Of Zno Npsmentioning

confidence: 99%

Eco-Friendly One Pot Synthesis of Zinc Oxide Nanoparticles Using Catkin Extract of Piper longum: In Vitro Antibacterial, Antioxidant and Antibiofilm Potential against Multi Drug Resistant Enteroaggregative E. coli

Unni

Abishad

Arya

et al. 2023

The 2nd International Electronic Conference on Biomedicines

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“…3.5.1 Effect of pH. The pH is known to be a significant parameter in controlling the size, morphology, and stability of AgNPs [ 330 ]. Singh et al [ 331 ] synthesized spherical AgNPs using Hibiscus leaf extract ranging 12–17 nm in diameter.…”

Section: Reviewmentioning

confidence: 99%

“…It was also reported that a change in pH affects the reducing capability of the extract, which is also confirmed by other studies [ 333 – 334 ]. The pH is also reported to control the zeta potential [ 330 , 332 ] and results in particle stability adjustments [ 330 ]. The higher the value of the zeta potential, the stronger the long-term stability of the AgNPs, thereby preventing their agglomeration [ 330 , 335 ].…”

Section: Reviewmentioning

confidence: 99%

“…The pH is also reported to control the zeta potential [ 330 , 332 ] and results in particle stability adjustments [ 330 ]. The higher the value of the zeta potential, the stronger the long-term stability of the AgNPs, thereby preventing their agglomeration [ 330 , 335 ]. Alkaline pH also has the potential of increasing the reaction rate due to the enhanced deprotonation of phenolic compounds in basic condition [ 336 ].…”

Section: Reviewmentioning

confidence: 99%

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A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

Kaabipour¹,

Hemmati²

2021

Beilstein J. Nanotechnol.

107

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The significance of silver nanostructures has been growing considerably, thanks to their ubiquitous presence in numerous applications, including but not limited to renewable energy, electronics, biosensors, wastewater treatment, medicine, and clinical equipment. The properties of silver nanostructures, such as size, size distribution, and morphology, are strongly dependent on synthesis process conditions such as the process type, equipment type, reagent type, precursor concentration, temperature, process duration, and pH. Physical and chemical methods have been among the most common methods to synthesize silver nanostructures; however, they possess substantial disadvantages and short-comings, especially compared to green synthesis methods. On the contrary, the number of green synthesis techniques has been increasing during the last decade and they have emerged as alternative routes towards facile and effective synthesis of silver nanostructures with different morphologies. In this review, we have initially outlined the most common and popular chemical and physical methodologies and reviewed their advantages and disadvantages. Green synthesis methodologies are then discussed in detail and their advantages over chemical and physical methods have been noted. Recent studies are then reviewed in detail and the effects of essential reaction parameters, such as temperature, pH, precursor, and reagent concentration, on silver nanostructure size and morphology are discussed. Also, green synthesis techniques used for the synthesis of one-dimensional (1D) silver nanostructures have been reviewed, and the potential of alternative green reagents for their synthesis has been discussed. Furthermore, current challenges regarding the green synthesis of 1D silver nanostructures and future direction are outlined. To sum up, we aim to show the real potential of green nanotechnology towards the synthesis of silver nanostructures with various morphologies (especially 1D ones) and the possibility of altering current techniques towards more environmentally friendly, more energy-efficient, less hazardous, simpler, and cheaper procedures.

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Effect of pH on the Environmentally Friendly Fabrication of Silver Nanoparticles Using Rambutan Peel Extract

Cited by 7 publications

References 22 publications

Effect of biosynthesised silver nanoparticles as sterilant on physiological and biochemical characteristics in micropropagation of Musa sapientum L.

Effect of biosynthesised silver nanoparticles as sterilant on physiological and biochemical characteristics in micropropagation of Musa sapientum L.

Eco-Friendly One Pot Synthesis of Zinc Oxide Nanoparticles Using Catkin Extract of Piper longum: In Vitro Antibacterial, Antioxidant and Antibiofilm Potential against Multi Drug Resistant Enteroaggregative E. coli

A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

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