CuO nanoparticles: Synthesis, characterization, optical properties and interaction with amino acids

El-Trass, A. E. A.; El-Shamy, Hany; El‐Mehasseb, Ibrahim M.; El‐Kemary, Maged

doi:10.1016/j.apsusc.2011.11.025

Cited by 360 publications

(151 citation statements)

References 19 publications

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“…Effect of pH: Green synthesis of copper oxide nanoparticles using aqueous extract of Cordia myxa L. leaves was examined over a broad pH range (3)(4)(5)(6)(7)(8)(9)(10)(11). Variations in pH were highly affected the SPR of CuONPs.…”

Section: Different Parameters Were Optimized For the Biosynthesis Of mentioning

confidence: 99%

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Optimization Properties and Characterization of Green Synthesis of Copper Oxide Nanoparticles Using Aqueous Extract of Cordia myxa L. Leaves

Thamer¹,

Muftin²,

Al-Rubae³

2018

Asian J. Chem.

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Copper oxide nanoparticles (CuONPs) were green synthesized using aqueous extract of Cordia myxa L. leaves as reducing and capping agent. The synthesized nanoparticles were characterized by UV-visible spectrophotometer, FTIR, X-ray diffraction, scanning electron microscope and atomic force microscope. The prepared copper oxide nanoparticles showed surface plasmon resonance centered at 400 nm. The optimized condition for the synthesis of copper nanoparticles revealed that the aqueous extract of Cordia myxa L. leaves:copper sulfate ratio was 1:3, pH was 9 and copper sulfate concentration was 40 mM. FTIR results showed that stabilization and formation of CuONPs were due to phenolic groups and amines in plant extract. The XRD pattern showed that the particles are monoclinic in nature. The crystalline morphology and size of the nanoparticles were determined by scanning electron microscope. Presence of elemental copper was revealed by EDX analysis. Size range was from 20 to 106.81 nm was determined by atomic force microscope.

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Section: Different Parameters Were Optimized For the Biosynthesis Of mentioning

confidence: 99%

“…Metal oxide nanoparticles obtained great attention for their potential applications in optoelectronics, nanodevices, nanoelectronics, nanosensors, information storage and catalysis [6,7]. Among various metal oxide nanoparticles, the copper oxide was implemented in wide range of application.…”

Section: Introductionmentioning

confidence: 99%

Optimization Properties and Characterization of Green Synthesis of Copper Oxide Nanoparticles Using Aqueous Extract of Cordia myxa L. Leaves

Thamer¹,

Muftin²,

Al-Rubae³

2018

Asian J. Chem.

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“…Consequently, the ZIN present in the sample was adsorbed onto the mesoporous shuttle-like CuONPs surface through physical [46] and chemical adsorption [47] due to any positive charge in the sample was adsorbed from the negative charge of −COO − on the CuONPs 8 surface via electrostatic effect (Scheme 1A). After several washes with ultra-pure water, 2 mL of 0.1 mol L -1 glycine (pH 2.04) was used as desorption buffer to elute the retained ZIN (at pH 2.04 the charge on the CuONPs surface changed to positive breaking the electrostatic interaction) (Scheme 1B).…”

Section: Preconcentration Proceduresmentioning

confidence: 99%

Copper nanoparticles applied to the preconcentration and electrochemical determination of β-adrenergic agonist: An efficient tool for the control of meat production

Regiart

Escudero

Aranda

et al. 2015

Talanta

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Copper nanoparticles applied to the preconcentration and electrochemical determination of β-adrenergic agonist: An efficient tool for the control of meat production, Talanta, http://dx.doi.org/ 10. 1016/j.talanta.2014.12.026 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractA novel method for preconcentration and electrochemical detection of zinterol in bovine urine samples was developed. In order to improve the limit of detection, the surface of a screenprinted carbon electrode was modified with electrodeposited metal copper nanoparticles. The experimental electrodeposition optimization was performed using a central composite design (CCD), involving the variables: precursor concentration, potential and time applied. Copper nanoparticles were characterized by transmission electron microscopy, scanning electron microscopy, cyclic voltammetry, and energy dispersive X-ray spectroscopy. Mesoporous 2 shuttle-like copper oxide nanoparticles were used for the preconcentration step to avoid interferences with many compounds present in the sample matrix. The optimal working conditions for the preconcentration approach were found by means of both two-level fractional factorial and CCD designs. The obtained enhancement factor for a sample volume of 30 mL was 35 fold. The calibration curve showed linearity between 0.5-45 ng mL -1 and the limit of detection was 0.16 ng mL -1 . The intra and inter assay coefficients of variability were below 4% and 5%; respectively.

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“…To understand the peak intensity change, a comparison of the zeta potential values of CuO and CdTe particles might be useful. It has been reported that the zeta potential usually changes with pH and that of CuO is approximately 25 mV around pH 7 [15][16][17] (sample preparation condition in this paper). CdTe nanoparticles used in this experiment were produced by laser ablation in water (without any stabilizer) and the CdTe nanoparticles easily aggregated in colloidal solution.…”

Section: [Salmentioning

confidence: 99%

Matrix-Assisted Laser Desorption Ionization Mass Spectrometry of Compounds Containing Carboxyl Groups Using CdTe and CuO Nanoparticles

Sakurai

Sato

et al. 2018

Applied Sciences

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Matrix-assisted laser desorption ionization mass spectrometry of compounds containing carboxyl groups was carried out by using semiconductor nanoparticles (CdTe and CuO) as the matrix. Salicylic acid (Sal), glucuronic acid (Glu), ibuprofen (Ibu), and tyrosine (Tyr) were ionized as deprotonated species (carboxylate anions) by using electrons ejected from CdTe after the photoexcitation. When CuO was used as the matrix, the peak intensity of Tyr became high compared with that obtained with CdTe. Measurements of model peptides, angiotensin II (AngII) and substance P (SubP), were also carried out but the obtained peak intensities were very low. In order to explain this result, the interaction between CdTe and AngII was confirmed by diffuse reflectance spectroscopy. The results suggest that electrostatic binding between semiconductor nanoparticles and AngII prevented the efficient desorption of AngII into the gas phase.

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CuO nanoparticles: Synthesis, characterization, optical properties and interaction with amino acids

Cited by 360 publications

References 19 publications

Optimization Properties and Characterization of Green Synthesis of Copper Oxide Nanoparticles Using Aqueous Extract of Cordia myxa L. Leaves

Optimization Properties and Characterization of Green Synthesis of Copper Oxide Nanoparticles Using Aqueous Extract of Cordia myxa L. Leaves

Copper nanoparticles applied to the preconcentration and electrochemical determination of β-adrenergic agonist: An efficient tool for the control of meat production

Matrix-Assisted Laser Desorption Ionization Mass Spectrometry of Compounds Containing Carboxyl Groups Using CdTe and CuO Nanoparticles

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