Orange red emitting Eu3+ doped zinc oxide nanophosphor material prepared using Guizotia abyssinica seed extract: Structural and photoluminescence studies

Kavyashree, D.; Kumari, R. Ananda; Nagabhushana, H.; Sharma, Saurabh; Vidya, Y.S.; Anantharaju, K.S.; Prasad, B. Daruka; Prashantha, S.C.; Lingaraju, K.; Rajanaik, H.

doi:10.1016/j.jlumin.2015.06.013

Cited by 31 publications

(6 citation statements)

References 36 publications

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“…Size, shape, and morphology of the metal nanoparticles are strongly influenced by the metabolites in the plant extract, which leads to the formation of nanoparticles of high stability with narrow size distribution [ 86 , 87 ]. Plant metabolites are terpenoids, polyphenols, sugars, alkaloids, phenolic acid, and proteins which play an important role in the binding and reduction of metal ions, thus thereby yielding metal nanoparticles as shown in Fig.…”

Section: Various Techniques For Nanoparticle Synthesismentioning

confidence: 99%

“…Amino acids bind to metal ions by their amino and carbonyl groups of the main chain or through side chains, such as the carboxyl groups of aspartic and glutamic acid or a nitrogen atom of the imidazole ring of histidine. Thus, these reports indicate that size, shape, and morphology of the metal nanoparticles are strongly influenced by the metabolites in the plant extract [ 86 ]. Metabolites (discussed above) play a key role in the overall formation of the eco-friendly nanoparticles.…”

Section: Various Techniques For Nanoparticle Synthesismentioning

confidence: 99%

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Nanotechnology and its challenges in the food sector: a review

Kumar

Mahajan

Kaur

et al. 2020

Materials Today Chemistry

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Antibacterial activity of nanoparticles has received significant attention worldwide because of their great physical and chemical stability, excellent magnetic properties, and large lattice constant values. These properties are predominate in the food science for enhancing the overall quality, shelf life, taste, flavor, process-ability, etc., of the food. Nanoparticles exhibit attractive antibacterial activity due to their increased specific surface area leading to enhanced surface reactivity. When nanoparticles are suspended in the biological culture, they encounter various biological interfaces, resulting from the presence of cellular moieties like DNA, proteins, lipids, polysaccharides, etc., which helps antibacterial properties in many ways. This paper reviews different methods used for the synthesis of nanoparticles but is specially focusing on the green synthesis methods owing to its non-toxic nature towards the environment. This review highlights their antibacterial application mainly in the food sector in the form of food-nanosensors, food-packaging, and food-additives. The possible mechanism of nanoparticles for their antibacterial behavior underlying the interaction of nano-particles with bacteria, (i) excessive ROS generation including hydrogen peroxide (H 2 O 2 ), OH − (hydroxyl radicals), and O − 2 2 (peroxide); and (ii) precipitation of nano-particles on the bacterial exterior; which, disrupts the cellular activities, resulting in membranes disturbance. All these phenomena results in the inhibition of bacterial growth. Along with this, their current application and future perspectives in the food sector are also discussed. Nanoparticles help in destroying not only pathogens but also deadly fungi and viruses. Most importantly it is required to focus more on the crop processing and its containment to stop the post-harvesting loss. So, nanoparticles can act as a smart weapon towards the sustainable move.

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Section: Various Techniques For Nanoparticle Synthesismentioning

confidence: 99%

Section: Various Techniques For Nanoparticle Synthesismentioning

confidence: 99%

Nanotechnology and its challenges in the food sector: a review

Kumar

Mahajan

Kaur

et al. 2020

Materials Today Chemistry

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“…The synthesis of Eu doped ZnO nanoparticles using different techniques such as combustion, solution methods, and wet chemical are reported. Kavyashre et al obtained Eu: ZnO particles using green synthesis method and reported a broadening of the emission peak at 615 nm with Eu concentration . More recently, Turgut et al have studied the effect of Europium doping on ZnO films prepared with sol spin coating method and Al/ZnO: Eu/p‐Si heterojunction diode was fabricated for solar cell applications …”

Section: Introductionmentioning

confidence: 99%

Effect of Eu Doping on the Physical, Photoluminescence, and Photocatalytic Characteristics of ZnO Thin Films Grown by Sol–Gel Method

Rayes

Kumar

Cortés-Jácome

et al. 2017

Physica Status Solidi (a)

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Eu doping concentration driven effect on the morphological, electrical, and optical properties of ZnO films prepared by sol gel method have been studied systematically. The properties of the films were studied using various experimental tools such as XRD, AFM, XPS, photoconductivity, UV–vis spectroscopy, photoluminescence (PL), and photocatalytic activity. Eu incorporation into the ZnO lattice was confirmed by XPS analysis. A decrease in crystallite size with increasing Eu concentration was observed. PL spectra showed that Eu‐ related light emission intensity reached a maximum at 6 wt.%. Photoconductivity measurements showed maximum photosensitivity for 4 wt.% Eu doped film. The photocatalytic activity of Eu‐ doped films was evaluated for methylene blue degradation and is found to be maximum for 6 wt.% Eu doped film.

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“…Kavyashree et al., reported the combustion synthesis of Eu 3+ doped ZnO nanophosphor material by using Guizotia abyssinica seed extract as the fuel. Crystallite size of the synthesised Eu 3+ doped ZnO nanophosphors was calculated from both Scherrer's and W−H plots, which were found to be in the range between 20 and 36 nm.…”

Section: Plant Based Renewable Fuels In Combustion Processmentioning

confidence: 99%

Combustion Process Using Plant‐Based Fuels for the Synthesis of Metal‐ Oxide Nanostructures

Vivekanandhan¹

2019

ChemistrySelect

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Metal oxide nanostructures receive great interest due to their unique size and shape dependent physicochemical and functional properties. With the rapid growth of metal oxide nanotechnology, their chemical synthesis processes have become the most promising one due to their simplicity and versatility. Among the various available chemical processes such as sol‐gel, hydrothermal, polyol and precipitation, the combustion process receives significant attention. In particular, the combustion process has been extensively explored for the synthesis of various nanostructured materials including metal oxides, which involves in the exothermic reaction upon thermal heating of precursor chemicals. Recently, the combustion process has been reinvented by using the various renewable resource‐based organic fuels, which receives increasing interest among global researchers. A wide range of plant/ leaf, fruit, flower, seed, peel, latex and tuber extracts along with the plant‐derived products have been explored in combustion process for the synthesis of various metal oxides. Hence, the present review is aimed to focus the recent advances in the combustion process by using renewable fuels for the synthesis of metal oxide nanostructures and also the emerging opportunities.

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Orange red emitting Eu3+ doped zinc oxide nanophosphor material prepared using Guizotia abyssinica seed extract: Structural and photoluminescence studies

Cited by 31 publications

References 36 publications

Nanotechnology and its challenges in the food sector: a review

Nanotechnology and its challenges in the food sector: a review

Effect of Eu Doping on the Physical, Photoluminescence, and Photocatalytic Characteristics of ZnO Thin Films Grown by Sol–Gel Method

Combustion Process Using Plant‐Based Fuels for the Synthesis of Metal‐ Oxide Nanostructures

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