Green synthesis of the silver nanoparticles mediated by pullulan and 6-carboxypullulan

Coseri, Sergiu; Spatareanu, Alina; Săcărescu, Liviu; Rîmbu, C.; Șuteu, Daniela; Spirk, Stefan; Harabagiu, Valeria

doi:10.1016/j.carbpol.2014.06.008

Cited by 91 publications

(67 citation statements)

References 37 publications

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“…The spectra clearly reveal the presence of elemental silver (peak at $3 keV) in the PPG/AgNPs composite sample. There are reports in the literature [29,35,36] that elemental silver gives signal in EDS at $3 keV. More so, the presence of C and O elements in the spectra further support that the elemental silver is embedded in PPG matrix.…”

Section: X-ray Diffraction and Eds Studiessupporting

confidence: 55%

In-situ preparation, characterization and anticorrosion property of polypropylene glycol/silver nanoparticles composite for mild steel corrosion in acid solution

Solomon

Umoren

2016

Journal of Colloid and Interface Science

145

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Section: X-ray Diffraction and Eds Studiessupporting

confidence: 55%

In-situ preparation, characterization and anticorrosion property of polypropylene glycol/silver nanoparticles composite for mild steel corrosion in acid solution

Solomon

Umoren

2016

Journal of Colloid and Interface Science

145

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“…Color intensity increases with increase in incubation time. Initially, when adding 100 ml of 1 × 10 −3 M aqueous silver nitrate with 5 ml of leaf extract, the color of the solution was found to be light yellow after 15 min the change of color from light yellow to reddish brown was evidenced, and after 1 hour the color changed from reddish brown to dark brown, this effect may be due to surface plasmon vibration [32,33]. The color of the colloidal solution of AgNPs depends on the size and shape of the nanoparticles.…”

Section: Uv-visible Spectroscopymentioning

confidence: 99%

Psidium Guajava: A Novel Plant in the Synthesis of Silver Nanoparticles for Biomedical Applications.

Sharmila¹,

Ranjith²,

B³

2018

Asian J Pharm Clin Res

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Objective: Synthesis of silver nanoparticles (AgNPs) using a simple, cost-effective and environmentally friendly green route approach and to study the antibacterial activity of AgNPs against human pathogens. Methods:Green route approach is used to synthesize AgNPs using Psidium guajava leaf extract. Fourier transform infrared (FTIR) was used to identify the presence of the functional group. X-ray diffraction (XRD) was used to analyze the structure of prepared AgNPs. Energy dispersive X-ray was used to the characteristic to the composition of the prepared nanoparticles. Size and morphology of the prepared AgNPs were investigated using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) analysis. Antibacterials efficiency of prepared AgNPs was tested against Escherichia coli and Staphylococcus aureus by well diffusion methods.Results: FTIR study shows the presence of different functional groups present in the leaves mediated AgNPs. The XRD studies yield diffraction peaks corresponding to face-centered cubic structure of Ag crystals. Spherical shaped AgNPs with a particle size of about ~55 nm were evidenced using FESEM and TEM analysis. Energy dispersive spectrum of the synthesized AgNPs confirms the presence of silver in the prepared nanoparticles. From UV-VIS analysis it is shown that the absorption band was red-shifted from 430 nm to 456 nm. The prepared AgNPs shows good antibacterial activity against E. coli and S. aureus.Conclusions: P. guajava leaf extract is a potential reducing agent to synthesize AgNPs. The green synthesis approach provides cost-effective and ecofriendly nanoparticles, which could be used in biomedical applications.

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“…Different chemical routes for synthesizing silver nanoparticles have been developed over the past few years [2]. Since usually the chemicals used for synthesis of silver nanoparticles are toxic and harmful to the environment [3], in order to develop an eco-friendly analytical method, new synthetic routes based on green chemistry principles have been attempted [4]. Among various living organisms that have been used for nanoparticle synthesis, plants have been used particularly for metal nanoparticle synthesis.…”

Section: Introductionmentioning

confidence: 99%

A Facile Green Synthesis at Room Temperature of Silver Nanoparticle Sensor with Leaf Extract of Tiliacora triandra

Jinnarak¹,

Phakditha²,

Phomsirot³

2017

dteees

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Abstract. Development of reliable and eco-friendly process for synthesis of metallic nanoparticles is an important step in a practical application of nanotechnology. One of the approaches towards achieving this objective is to directly use a natural substance. In this work, we have developed a simple green method for synthesis of silver nanoparticles (AgNPs) with Tiliacora triandra leaf extract at room temperature. The synthesis process was quite fast and the silver nanoparticles were formed within minutes of the silver ions coming into contact with the leaf extract. Formation of silver nanoparticles was confirmed by surface plasmon resonance at 452 nm with a UV-visible spectrophotometer. Synthesized nanoparticles were characterized by UV-visible spectroscopy, Fourier transformed infrared spectroscopy, X-ray diffraction, X-ray energy dispersive spectrometer, selected area electron diffraction, high-resolution transmission electron spectroscopy, field emission scanning electron microscopy, dynamic light scattering and zeta potential measurements. The main benefits of this sysnthesis method are that AgNPs produced with Tiliacora triandra are not only easy to prepared but should also be less toxic than those produced by other chemical methods.

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Green synthesis of the silver nanoparticles mediated by pullulan and 6-carboxypullulan

Cited by 91 publications

References 37 publications

In-situ preparation, characterization and anticorrosion property of polypropylene glycol/silver nanoparticles composite for mild steel corrosion in acid solution

In-situ preparation, characterization and anticorrosion property of polypropylene glycol/silver nanoparticles composite for mild steel corrosion in acid solution

Psidium Guajava: A Novel Plant in the Synthesis of Silver Nanoparticles for Biomedical Applications.

A Facile Green Synthesis at Room Temperature of Silver Nanoparticle Sensor with Leaf Extract of Tiliacora triandra

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