Effects of copper(II) ions and copper oxide nanoparticles on Elodea densa Planch.

Nekrasova, G. F.; Ushakova, O. S.; Ермаков, А. Е.; Уймин, М. А.; Бызов, И. В.

doi:10.1134/s1067413611060117

Cited by 191 publications

(55 citation statements)

References 16 publications

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“…Moreover, non-ionic Cu forms could lower the POD and APX activities compared with the corresponding ionic forms but still the values higher than those of the controls. Similar to the present results, Nekrasova et al (2011) reported decrease in CAT activity in E. densa at higher concentrations of copper ions. This can be explained by enzyme inactivation, might be, due to substitution of Fe 2+ ion in its active center with Cu 2+ ion (Hou et al, 2007;Mallick, 2004).…”

Section: Discussionsupporting

confidence: 81%

“…This can be explained by enzyme inactivation, might be, due to substitution of Fe 2+ ion in its active center with Cu 2+ ion (Hou et al, 2007;Mallick, 2004). Clearly, Cu ions inhibited the antioxidant enzymes more strongly, compared to non-ionic Cu particles (Nekrasova et al, 2011). In the present, a reason behind the APX inhibition in some cases of Cu treatments might be the lack of ascorbate due to presence of high amounts of Cu ions.…”

Section: Discussionmentioning

confidence: 75%

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Bacterial Detoxification of Copper and Its Impacts on Germination Indices of Barley and Mung Bean

2016

Egypt. J. Bot.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 75%

Bacterial Detoxification of Copper and Its Impacts on Germination Indices of Barley and Mung Bean

2016

Egypt. J. Bot.

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“…Most of the authors have reported suitability of basic medium for CuO NAPs synthesis due to better stability of the synthesized nanoparticles in basic medium [13,31,35,40]. Some other advantages reported under basic pH are rapid growth rate [21,25,27,33,41], good yield and mono dispersity and enhanced reduction process [42]. Small and uniform sized nanoparticles were synthesized by increasing pH of the reaction mixture [43].…”

Section: Factors Affecting Cuo Naps Synthesis:-mentioning

confidence: 99%

BIOGENIC SYNTHESIS OF CuO NANOPARTICLES AND THEIR BIOMEDICAL APPLICATIONS: A CURRENT REVIEW.

Khan¹,

Shahid²,

Sajid³

et al. 2017

IJAR

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In this paper, brief reviews for the synthesis of copper oxide nanoparticles by the different green routes are described. Since last few years, synthesis of nanoparticles has been attracted considerable attention. The metal oxides are important technology materials used as antibacterial, antioxidant, antifungal as well as catalysts in chemical industries and in electronic and photonic devices. Due to the applications in advanced technologies, researchers have focused more on synthesis of CuO nanoparticles with improved, cost effective ecofriendly synthetic strategies. Copper oxide nanoparticles appear as a brownish-black powder. They can be reduced to metallic copper when exposed to hydrogen or carbon monoxide under high temperature. Copper oxide nanoparticles are used in wide range of applications such as biological, catalysis, gas sensors, magnetic storage media, batteries, solar energy transformer, semiconductors, and field emission. CuO, as a P-type semiconductors exhibiting narrow band gap, have attracted great attention due to its potential application in Nano devices such as electronic, optoelectronics. …………………………………………………………………………………………………….... Introduction:-During the last few decades, the interests of scientists are increasing continuously day by day in the field of science and technology at the nanometer range. Nano-science and nanotechnology is supposed to wrap all fields of science and technology because any material particle is made up of atoms and molecules [1]. In science and technology, was considered well-progressed interdisciplinary field of research in last few year. Particularly metal oxide nanoparticles have extensive well-known their application of in many fields of science including chemical industry, electronics, biomedical sciences, biosensor, molecular catalysts, magnetic materials and drug gene delivery due to their physical and chemical properties different from those in the bulk material [2]. Main focus of nanoscience and nanotechnology is synthesis of new nanoparticles with various sizes and new morphology. Due to change in morphology strongly effects on their broadly varying properties. Much attention attracted by nanoparticles on account of their unique properties and energetic application which are strongly influenced by their size, morphology and structure. Cupric oxide nanomaterials have attracted much attention on account of their distinctive properties among other metal oxides nanomaterials [3]. Cupric oxide nanoparticles have got great consideration because it is

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“…The main factor which is involved in the higher total protein content and SOD activity could be the stress. SOD and total protein content were hampered by the Cu ions presence in the medium (Nekrasovaa et al 2011). …”

Section: Total Protein Content and Superoxide Dismutase (Sod) Activitymentioning

confidence: 99%

In vitro seed germination and biochemical profiling of Artemisia absinthium exposed to various metallic nanoparticles

et al. 2017

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In the recent years, nanotechnology has attained much attention in the every field of science. The synthesis, characterisation and applications of metallic nanoparticles (MNPs) have become an important branch of nanotechnology. In the current study, MNPs were synthesised through polyols process and applied in vitro to study their effect on medicinally important plant : Artemisia absinthium. The current study strives to check the effect of MNPs, i.e., Ag, Cu and Au on seed germination, root and shoot length, seedling vigour index (SVI) and biochemical profiling in A. absinthium. The seeds were inoculated on MS medium supplemented with various combinations of MNPs suspension. The seed germination was greatly influenced upon the application of MNPs and was recorded highest for the silver nanoparticles (AgNPs) suspensions. The best result for seed germination (98.6%) was obtained in MS medium supplemented with AgNPs as compared to control (92.9%) and other nanoparticles, i.e., copper (69.6%) and gold (56.5%), respectively, after 35 days of inoculation. Significant results were obtained for root length, shoot length and SVI in response to application of AgNPs as compared to copper nanoparticles (CuNPs) and gold nanoparticles (AuNPs). These nanoparticles (NPs) could induce stress in plants by deploying the endogenous mechanism. In response to these stresses, plants produce various defence compounds. Total phenolic content (TPC) and total flavonoid content (TFC) were significant in the MS medium supplemented with AgNPs as compared to other NPs, while DPPH radical scavenging assay (RSA) was highest in AuNPs treated plantlets. The MNPs showed higher toxicity level and enhanced secondary metabolites production, total phenolic content, total flavonoid content, antioxidant activity, superoxide dismutase (SOD) activity and total protein content.

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Effects of copper(II) ions and copper oxide nanoparticles on Elodea densa Planch.

Cited by 191 publications

References 16 publications

Bacterial Detoxification of Copper and Its Impacts on Germination Indices of Barley and Mung Bean

Bacterial Detoxification of Copper and Its Impacts on Germination Indices of Barley and Mung Bean

BIOGENIC SYNTHESIS OF CuO NANOPARTICLES AND THEIR BIOMEDICAL APPLICATIONS: A CURRENT REVIEW.

In vitro seed germination and biochemical profiling of Artemisia absinthium exposed to various metallic nanoparticles

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