A review on bio-synthesized zinc oxide nanoparticles using plant extracts as reductants and stabilizing agents

Basnet, Parita; Chanu, T. Inakhunbi; Samanta, Dhrubajyoti; Chatterjee, Somenath

doi:10.1016/j.jphotobiol.2018.04.036

Cited by 257 publications

(113 citation statements)

References 108 publications

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“…This is followed by hydrolysis reaction to form zinc hydroxide due to the presence of the hydroxyl group in the polyphenol. Calcination and decomposition reaction shortly follows to form zinc oxide nanoparticles [44]. Also, the synergistic reaction of all the phytochemical components present in the extracts (terpenes, flavonoids, saponins, tannins, glycosides/carbohydrates, and alkaloids) act as both reducing and stabilizing agent by reducing Zinc to the 0 valence state [44].…”

Section: Characterization Of Zinc Oxide Nanoparticlesmentioning

confidence: 99%

Green synthesis of zinc oxide nanoparticles using different plant extracts and their antibacterial activity against Xanthomonas oryzae pv. oryzae

Ogunyemi

Abdallah

Zhang

et al. 2019

Artificial Cells, Nanomedicine, and Biotechnology

265

117

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Section: Characterization Of Zinc Oxide Nanoparticlesmentioning

confidence: 99%

Green synthesis of zinc oxide nanoparticles using different plant extracts and their antibacterial activity against Xanthomonas oryzae pv. oryzae

Ogunyemi

Abdallah

Zhang

et al. 2019

Artificial Cells, Nanomedicine, and Biotechnology

265

117

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“…Environmental problems associated to organic wastes disposed in water bodies without proper treatment is a concern and should be accounted using appropriate technologies [1,2]. Conventional techniques [3], employed for the removal of water pollutants, suffer from several disadvantages like high cost, accumulation of toxic sludge, environmental pollution, and others.…”

Section: Introductionmentioning

confidence: 99%

“…Amongst SNMs, zinc oxide (ZnO) nanoparticles (NPs) have proven to be a highly promising photocatalyst, under ultra-violet (UV) as well as solar light irradiations [1]. ZnO has a direct wide band gap energy of ~ 3.37 eV and has numerous applications due to its nano-and microstructural properties [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Alteration of photocatalytic properties may be achieved using different synthesis methods [1,18,19], which convey various morphologies of ZnO NPs, such as rods, spheres, tubes and others, with particle size as small as 2-10 nm [20][21][22][23]. However, care must be taken about the cost, complexity, feasibility and toxicity of the method opted for synthesis [24].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of synthesis approaches for tuning the photocatalytic property of ZnO nanoparticles

Basnet

Samanta

Chanu³

et al. 2019

SN Appl. Sci.

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Tuning the photocatalytic property of zinc oxide (ZnO) nanoparticles (NPs) is timely. Dependence of photocatalysis upon size, morphology and effective surface area of the particles used has led to optimization in various synthesis procedures. The current article addresses to dictate a cost-effective, bio-friendly, modified ease-process for this issue. The synthesis of ZnO NPs with differing photophysical properties, sizes and morphologies, in order to tune its photocatalytic activity, have been extensively studied. Polyethylene glycol as the structure directing agent and different synthesis strategies were adopted. Spectroscopic and microscopic characterization techniques were employed to understand the nature of the as-synthesized samples. Photocatalytic property and photostability of the samples were determined based on experiments performed with common xanthene and azo dyes. Based on analysing the results, certain characteristics, such as smaller particle size, less agglomerated structure, higher surface area and superior lifetime of the photogenerated electrons and holes upon light illumination, were essential for ZnO NPs to act as an efficient photocatalyst.

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“…The combination of nanotechnology and biological science has been created a new path for the researchers to exploit in various biological fields. Nowadays, synthesis of metal nanoparticles becomes growing attention in nanotechnology research due to its tremendous applications in medicine, biomedical, pharmaceutical, drug delivery, and photocatalytic activity [1]. In the past few decades, there is an increased demand for the metallic nanoparticles which can be synthesized by various traditional physical and chemical methods in different shapes and sizes.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis, characterization, and antibacterial activity of zinc oxide nanoparticles derived from Bauhinia tomentosa leaf extract

Sharmila¹,

Chandrasekaran²,

Sandiya³

et al. 2018

J Nanostruct Chem

121

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A facile, eco-friendly synthesis of zinc oxide nanoparticles (ZnO NPs) employing Bauhinia tomentosa leaf extract as bioreducing agent was reported. The green-synthesized ZnO NPs were characterized by UV-Vis, TEM, EDX, XRD, and FTIR analyses. The formation of ZnO NPs was confirmed by the appearance of characteristic SPR peak at 370 nm due to the collective oscillation of electrons in the conduction band in UV-Vis spectra. The hexagonal morphology exhibiting nanosized ZnO was observed from the TEM and XRD analyses. The chemical bonds present in the as-synthesized ZnO NPs were identified by FTIR analysis. ZnO NPs showed a significant antibacterial activity against Gram-negative bacteria P. aeruginosa and E. coli than Gram-positive bacteria. Results of this study demonstrated that B. tomentosa leaf extract containing phytochemicals such as alkaloids, terpenoids, flavonoids, tannins, carbohydrates, and sterols possess bioreducing property for ZnO synthesis and the obtained ZnO NPs could be employed effectively as a better bactericidal agent for biological applications.

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A review on bio-synthesized zinc oxide nanoparticles using plant extracts as reductants and stabilizing agents

Cited by 257 publications

References 108 publications

Green synthesis of zinc oxide nanoparticles using different plant extracts and their antibacterial activity against Xanthomonas oryzae pv. oryzae

Green synthesis of zinc oxide nanoparticles using different plant extracts and their antibacterial activity against Xanthomonas oryzae pv. oryzae

Assessment of synthesis approaches for tuning the photocatalytic property of ZnO nanoparticles

Biosynthesis, characterization, and antibacterial activity of zinc oxide nanoparticles derived from Bauhinia tomentosa leaf extract

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