scholarly journals Copper Nanoparticle(CuNP’s)Synthesis: A review of the various ways with Photocatalytic and Antibacterial Activity

2021 ◽  
Vol 37 (5) ◽  
pp. 1030-1040
Author(s):  
Israfil Alam Tito ◽  
Sahab Uddin ◽  
Shafiul Islam ◽  
Snahasish Bhowmik
Keyword(s):  
Antibacterial Activity ◽  
Reaction Time ◽  
Copper Nanoparticles ◽  
Nanoparticle Synthesis ◽  
Precious Metals ◽  
Chemical Characteristics ◽  
Antibacterial Mechanism ◽  
Optical And Electrical Properties ◽  
Copper Nanoparticle ◽  
Physical Chemical

Over the last few decades, several studies have been undertaken to determine the benefits and drawbacks of various copper nanoparticle synthesis processes. Copper nanoparticles have garnered considerable attention because of their remarkable optical and electrical properties. CuNPs' optical, electrical and chemical characteristics are substantially depending on their synthesis procedures. Copper is less expensive than precious metals such as gold and silver, and it also possesses strong photocatalytic and antimicrobial competencies.In this review, synthesis of copper nanoparticles by various methods such as physical, chemical and biological is elaborately illustrated and in the meantime it's also explained how different reaction variables like temperature, pressure, reaction time, and reactor properties affect the size, shape, and surface area of produced copper nanoparticles. Moreover, photocatalysis and antibacterial mechanism for copper nanoparticles are also illustrated with proper illustration.

Seed mediated copper nanoparticle synthesis for fabricating oxidation free interdigitated electrodes using intense pulse light sintering for flexible printed chemical sensors

2017 ◽  
Vol 5 (42) ◽  
pp. 11128-11137 ◽  
Author(s):  
Krishnamraju Ankireddy ◽  
Thad Druffel ◽  
Swathi Vunnam ◽  
Gregor Filipič ◽  
Ruvini Dharmadasa ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Chemical Sensors ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Nanoparticle Synthesis ◽  
Intense Pulse Light ◽  
Copper Nanoparticle ◽  
Chemical Reduction Method ◽  
Interdigitated Electrodes ◽  
Seed Mediated

A facile aqueous-based seed-mediated chemical reduction method is developed for the synthesis of copper nanoparticles.

An Overview of Copper Nanoparticles: Synthesis, Characterisation and Anticancer Activity

2021 ◽  
Vol 27 ◽  
Author(s):  
Gowhar Naikoo ◽  
Fatema Al-Mashali ◽  
Fareeha Arshad ◽  
Naema AL-Maashani ◽  
Israr U. Hassan ◽  
...  
Keyword(s):  
Anticancer Activity ◽  
Copper Nanoparticles ◽  
Recent Progress ◽  
Treatment Options ◽  
Nanoparticle Synthesis ◽  
Cancer Diagnostics ◽  
Copper Nanoparticle ◽  
Skin Cancers ◽  
Nanoparticles Synthesis ◽  
Made In

: In this review, we summarised the different methods for copper nanoparticle synthesis, including green methods. We highlighted that the synthesis of the copper nanoparticles from green sources is preferable as they serve as stable and reducing entities. Furthermore, we critically reviewed the effectiveness of copper-based nanoparticles in oncogenic treatments emphasizing breast, lung, colorectal, and skin cancers. Finally, we have summarised the recent progress made in copper-based nanoparticles and their applications to amplify and rectify present cancer treatment options. The synthesis, characterization, stabilization, and functionalization techniques of various copper-based nanoparticles have also been highlighted in each section. In conclusion, the review provides the outlook of copper nanoparticles in cancer diagnostics and therapeutics.

Stability and Antibacterial Assessment of Copper Nanoparticles Dispersed on Cotton Fabrics

2019 ◽  
Vol 6 (3) ◽  
pp. 8-19
Author(s):  
Krystal R. Fontenot ◽  
Sunghyun Nam ◽  
Alfred D. French ◽  
Brian D. Condon
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Ascorbic Acid ◽  
Antibacterial Activity ◽  
Surface Morphology ◽  
Copper Nanoparticles ◽  
Cotton Fabrics ◽  
Cotton Fibers ◽  
Copper Nanoparticle ◽  
Ambient Conditions

Cotton fibers and ascorbic acid stabilized and prevented oxidation of the copper nanoparticles as shown by the absence of changes in absorbance wavelength, surface charge, and fabric color after storage for six months under ambient conditions. Differences in the physical properties, compared to cotton fabric, for copper alkali (a prepared intermediate) and copper nanoparticle fabrics included fabric dimensions, absorbance wavelength, and surface morphology, supporting the presence of the copper-cellulose complex. The cotton and copper alkali fabrics showed high wettability and hydrophilicity, in contrast to the hydrophobic copper nanoparticle fabrics. The copper nanoparticle fabrics had effective antibacterial activity against Escherichia coli and Staphylococcus aureus with a growth inhibition of 99%.

scholarly journals The Precious metals (Au, Ag, Pt, Pd, Rh) adsorption on the Silicon – organic sorbents

2014 ◽  
Vol 12 ◽  
pp. 29-34 ◽  
Author(s):  
G Burmaa ◽  
S Alen ◽  
Yu Ganchimeg ◽  
I Sukhbaatar
Keyword(s):  
Complex Anion ◽  
Condensation Reaction ◽  
Precious Metals ◽  
Acidic Condition ◽  
Chloro Complex ◽  
Chemical Characteristics ◽  
Sorption Activity ◽  
Physical Chemical ◽  
Poly Condensation

Sorption activity of two types of Silicon-organic sorbents for the previous metals has been studied. A polymer – poly (3- silsesquioxanilpropylthiocarbamate) - 3- silsesquioxanilpropylammonium which was obtained by the hydrolytic poly-condensation reaction and has been determined its physical, chemical characteristics and its sorption activity for the Ag(I), Au(III), Pt(IV), Pd(II), Rh(III). It has been found out that the sorbent shows high static sorption of Gold (III), Mercury (II) at acidic condition. The second a net structured silicon-organic copolymer {SiO2*2[O1.5Si(CH2)3NHC5H4N}n was synthesized by hydrolytic co-poly-condensation reaction. It likely to react as an anionit that adsorbs chloro-complex anion of the Au (III), Pt(IV), Pd(II), Rh(III).DOI: http://dx.doi.org/10.5564/mjc.v12i0.167 Mongolian Journal of Chemistry Vol.12 2011: 29-34

Green Synthesis of Silver Nanoparticles Using Artocarpus hirsutus Seed Extract and its Antibacterial Activity

2020 ◽  
Vol 21 (10) ◽  
pp. 980-989
Author(s):  
Sampath Shobana ◽  
Sunderam Veena ◽  
S.S.M. Sameer ◽  
K. Swarnalakshmi ◽  
L.A. Vishal
Keyword(s):  
Silver Nanoparticles ◽  
Cell Wall ◽  
Antibacterial Activity ◽  
Listeria Monocytogenes ◽  
Nanoparticle Synthesis ◽  
Enterobacter Aerogenes ◽  
Seed Extract ◽  
Diffusion Method ◽  
Multi Drug Resistance ◽  
Gastrointestinal Bacteria

Aims: To evaluate the antibacterial activity of Artocarpus hirsutus mediated seed extract for nanoparticle synthesis. Background: Gastrointestinal bacteria are known for causing deadly infections in humans. They also possess multi-drug resistance and interfere with clinical treatments. Applied nanotechnology has been known to combat such infectious agents with little interference from their special attributes. Here we synthesize silver nanoparticles from Artocarpus hirsutus seed extract against two gastro-intestinal bacterial species: Enterobacter aerogenes and Listeria monocytogenes. Objective: To collect, dry, and process seeds of Artocarpus hirsutus for nanoparticle synthesis. To evaluate the morphological interaction of silver nanoparticles with bacteria. Methods: Artocarpus hirsutus seeds were collected and processed and further silver nanoparticles were synthesized by the co-precipitation method. The synthesized nanoparticles were characterized using XRD, UV, FTIR, and SEM. These nanoparticles were employed to study the antibacterial activity of nanoparticles against Enterobacter aerogenes and Listeria monocytogenes using well diffusion method. Further, morphological interaction of silver nanoparticles on bacteria was studied using SEM. Result: Silver nanoparticles were synthesized using Artocarpus hirsutus seed extract and characterization studies confirmed that silver nanoparticles were spherical in shape with 25-40 nm size. Antibacterial study exhibited better activity against Enterobacter aerogenes with a maximum zone of inhibition than on Listeria monocytogenes. SEM micrographs indicated that Enterobacter aerogenes bacteria were more susceptible to silver nanoparticles due to the absence of cell wall. Also, the size and charge of silver nanoparticles enable easy penetration of the bacterial cell wall. Conclusion: In this study, silver nanoparticles were synthesized using the seed extract of Artocarpus hirsutus for the first time exploiting the fact that Moraceae species have high phytonutrient content which aided in nanoparticle synthesis. This nanoparticle can be employed for large scale synthesis which when coupled with the pharmaceutical industry can be used to overcome the problems associated with conventional antibiotics to treat gastrointestinal bacteria.

Biogenic synthesis of copper nanoparticles from rose (Rosa indica L.) and their applications in photocatalytic degradation of Malachite Green and Carbol Fuchsin dyes

2020 ◽  
Vol 10 ◽  
Author(s):  
Manmeet Kaur ◽  
Suman Prajapati ◽  
Samneek Cholia ◽  
Jaskeet Singh Mann ◽  
Gurpreet Singh
Keyword(s):  
Photocatalytic Degradation ◽  
Malachite Green ◽  
Copper Nanoparticles ◽  
Dye Degradation ◽  
Industrial Effluent ◽  
Copper Nanoparticle ◽  
Synthesis Of Nanoparticles ◽  
Carbol Fuchsin ◽  
Double Beam ◽  
The Rose

Background: In the recent years, the green synthesis of nanoparticles has taken a lead role over the conventional chemical and physical approach due to its non-toxic, cost effective parameters and has found its place in various applications. Objectives: The major objectives of this study was to synthesise and characterize the copper nanoparticles using the rose extract at different set of conditions and analyse these nanoparticles as a source of dye degradation agent under sunlight conditions. Methods: Present study was conducted with the aim to synthesis the copper nanoparticle using the rose petal extract. The components present the in the extract act as the reduction and stabilization agents for the synthesis of CuNPs. The synthesized nanoparticles were characterized by using UV-VIS, FTIR, XRD and SEM analysis. Photocatalytic degradation of two dyes (Malachite Green and Carbol fuchsin) was analysed using double beam spectroscopic analysis Results: UV-Vis analysis indicated the presence of a peak at around 630 nm. The FT-IR analysis indicated the involvement of various biomolecules during the synthesis of nanoparticles. The structure and the conformation was elucidated using XRD and SEM showed the agglomerated form of the synthesized nanoparticles with the size range of about 60-90 nm. The synthesised copper nanoparticles was used for degradation of malachite green and carbol fuchsin dye using photocatalytic under sunlight irradiation. UV-Vis spectral analysis indicated that synthesised copper nanoparticle act more effective in degradation of malachite green (around 95%) whereas carbol fuchsin showed a maximum degradation by 52% therefore suggesting that CuNPs act as an efficient photo catalyst in dye degradation. Conclusion: The results obtained from this study indicates that rose extract has the potential of synthesis of copper nanoparticles which is non-toxic and convenient approach as compared to physical and chemical synthesis. These nanoparticles can be effectively employed as dye decolourization agents to treat industrial effluent and prevent the environmental pollution.

scholarly journals New Hybrid Copper Nanoparticles/Conjugated Polyelectrolyte Composite with Antibacterial Activity

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 401
Author(s):  
Ignacio A. Jessop ◽  
Yasmín P. Pérez ◽  
Andrea Jachura ◽  
Hipólito Nuñez ◽  
Cesar Saldías ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Copper Nanoparticles ◽  
Salmonella Enteritidis ◽  
Theoretical Calculations ◽  
Chemical Reduction ◽  
Metallic Copper ◽  
Resistant Bacteria ◽  
Small Contribution ◽  
Antibiotic Resistant ◽  
Conjugated Polyelectrolyte

In the search for new materials to fight against antibiotic-resistant bacteria, a hybrid composite from metallic copper nanoparticles (CuNPs) and a novel cationic π-conjugated polyelectrolyte (CPE) were designed, synthesized, and characterized. The CuNPs were prepared by chemical reduction in the presence of CPE, which acts as a stabilizing agent. Spectroscopic analysis and electron microscopy showed the distinctive band of the metallic CuNP surface plasmon and their random distribution on the CPE laminar surface, respectively. Theoretical calculations on CuNP/CPE deposits suggest that the interaction between both materials occurs through polyelectrolyte side chains, with a small contribution of its backbone electron density. The CuNP/CPE composite showed antibacterial activity against Gram-positive (Staphylococcus aureus and Enterococcus faecalis) and Gram-negative (Escherichia coli and Salmonella enteritidis) bacteria, mainly attributed to the CuNPs’ effect and, to a lesser extent, to the cationic CPE.

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