One pot synthesis of copper nanoparticles at room temperature and its catalytic activity

Suramwar, Nikhil V.; Thakare, Sanjay R.; Khaty, Niraj T.

doi:10.1016/j.arabjc.2012.04.034

Cited by 53 publications

(29 citation statements)

References 33 publications

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“…The maximum absorption peak of Copper nanoparticles appeared at 595 nm (Fig. 2) after 60 minutes indicates the formation of separated Copper nanoparticles which is quite similar to the maximum absorption peak at 560-570 nm as reported by Suresh et al and Suramwar et al [21,22]. It clearly revealed that formation of nanoparticles take place after stirring the solution for 60 minutes while the absorption peaks at 495 and 545 nm attributes for the agglomerated particles.…”

Section: Uv-visible Absorption Spectroscopic Studiessupporting

confidence: 82%

Bio-Synthesis of copper nanoparticles (CuNPs) using Garlic extract to investigate antibacterial activity

Amatya

Joshi

2020

BIBECHANA

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Bio-synthesis of metal nanoparticles (CuNPs) is regarded as one of the recently developed, economic and environmentally benign method. In the present investigation, Copper nanoparticles were synthesized reacting garlic (Allium sativum) extract with Copper Sulphate (CuSO4∙5H2O) solution over magnetic stirrer at 80 °C for 1 hour. So-prepared CuNPs were studied by observing the color change at various time intervals. Further, the nanoparticles were characterized using UV-Visible spectroscopy, Energy Dispersive X-ray spectroscopy (EDX) and Fourier Transform Infrared spectroscopy (FTIR). The results of UV-Vis spectroscopy clearly showed presence of absorption peak at 595 nm which confirmed the formation of copper nanoparticles. Likewise, the EDX spectrum depicts the presence of optical band at 8 eV which is the characteristic peak of Copper consisting of 38.747 % by weight and FTIR spectra revealed presence of various phytochemicals possessing characteristic functional groups such as carbonyl and phenolic at the surface of CuNPs. Thus, natural products available in the garlic extract help in reduction and stabilization of Copper nanoparticles. The antibacterial activity of Copper nanoparticles was investigated against Gram +ve (Staphylococcus aureus) and Gram –ve bacteria (Escherichia coli) using Agarwell diffusion method. The results of antibacterial test showed that CuNPs were found to be much sensitive towards Gram –ve bacteria compared to gram +ve bacteria. BIBECHANA 17 (2020) 12-18

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Section: Uv-visible Absorption Spectroscopic Studiessupporting

confidence: 82%

Bio-Synthesis of copper nanoparticles (CuNPs) using Garlic extract to investigate antibacterial activity

Amatya

Joshi

2020

BIBECHANA

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“…At this stage, the sodium borohydride reduction agent was slowly added while the solution was stirred at about 5000 rpm (magnetic stirrer, IKA, Germany). In this way, while producing copper nanoparticles, the solution was changed to a dark blue color [29].…”

Section: Synthesis Of Copper Nanoparticlesmentioning

confidence: 99%

Antimicrobial effect of chitosan–silver–copper nanocomposite on Candida albicans

et al. 2020

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Candida is a common yeast in opportunistic fungal diseases around the world and is usually colonized on the skin and mucosal membranes. The purpose of this study was to synthesize chitosan-silver-copper nanocomposite and to investigate its antifungal effects on Candida albicans. Silver, copper and chitosan nanoparticles were synthesized individually. Then, copper-silver-chitosan nanocomposite was synthesized. These nanoparticles are approved by transmission electron microscope, and nanocomposite structure was also confirmed by scanning electron microscope. Then, the minimum inhibitory concentrations and minimum fungicidal of these nanostructures were examined on C. albicans. The results of this study indicate that the properties and effects of the investigated nanocomposite are comparable to amphotericin B as standard material. The results show that this effect was higher for copper-silver-chitosan nanocomposite than for other nanoparticles studied. Antifungal effect of copper nanoparticles and chitosan nanoparticles was not established separately, but it was found that their composition had antifungal effects that were effective. The combination of nanoparticles of chitosan with silver has been shown to have some antifungal effects. The most antifungal effect for the nanoparticles studied is related to copper-silver-chitosan nanocomposite and, which has had a significant effect on the growth of C. albicans in the laboratory environment compared to other nanoparticles.

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“…Ablation [85][86][87] Colloidal microemulsion [48,49] Physical Vapor Deposition (PVD) [88] Sonochemical [52,[89][90][91] Wire discharge [83,92] Electrochemical [25,40,82,93] Grinding [94] Microwave [43,[95][96][97] Radiolysis [98] Hydrothermal [46,82,99] Aerosol [100] Mechanical attrition [101] obtaining nanoparticles with low quality. Several physical techniques are incorporated during or after a chemical process, for example, the laser ablation requires a colloidal solution, which minimizes the chances of oxidation on the surface of the nanoparticles, and it must be placed in a vacuum chamber in order to remove or extract atoms from a bulk surface through emission of laser beam; this method is not feasible due to the complexity of the equipment and the use of high energy for the laser [26].…”

Section: Physical Methods Chemical Methodsmentioning

confidence: 99%

Copper: Synthesis Techniques in Nanoscale and Powerful Application as an Antimicrobial Agent

Camacho-Flores

Martínez-Alvarez²,

Arenas‐Arrocena

et al. 2015

Journal of Nanomaterials

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Nanosized metal particles show specific physical and chemical properties that allow the creation of new composites materials, which are important for multiple applications in biology and medicine such as infections control. Metal nanoparticles, mainly copper, exhibit excellent inhibitory effect on Gram-positive and Gram-negative bacteria; therefore the exploration about the efficient, economical, and friendly environmental technics to synthesize inorganic nanoparticles is imperative. In this work a brief overview of the several methods is made including the comparison of the methods, mainly between sonochemical, microwave, and chemical routes. It allows determining the optimal parameters and technical conditions to synthesize copper nanoparticles with physical and chemical properties suitable for the oral bacterial inhibition.

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One pot synthesis of copper nanoparticles at room temperature and its catalytic activity

Cited by 53 publications

References 33 publications

Bio-Synthesis of copper nanoparticles (CuNPs) using Garlic extract to investigate antibacterial activity

Bio-Synthesis of copper nanoparticles (CuNPs) using Garlic extract to investigate antibacterial activity

Antimicrobial effect of chitosan–silver–copper nanocomposite on Candida albicans

Copper: Synthesis Techniques in Nanoscale and Powerful Application as an Antimicrobial Agent

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