Antimicrobial effect of copper nanoparticles with differing dispersion and phase composition

2014 ◽  
Vol 9 (1-2) ◽  
pp. 82-86 ◽  
Author(s):  
O. A. Bogoslovskaja ◽  
A. A. Rakhmetova ◽  
M. N. Ovsyannikova ◽  
I. P. Olkhovskaya ◽  
N. N. Gluschenko
2019 ◽  
Vol 7 (4) ◽  
pp. 421-428
Author(s):  
Salina Hona ◽  
Rebecca Dangol ◽  
Janaki Ghatane ◽  
Dinesh Giri ◽  
Raja Ram Pradhananga

Copper nanoparticles were synthesized by chemical reduction of copper sulphate pentahydrate with sodium borohydride at ambient temperature in presence of PEG (Polyethylene Glycol) as protective agent and ascorbic acid as antioxidant. The synthesized copper nanoparticles were characterized by FT-IR to determine the presence of different functional groups attached to copper nanoparticles. Their optical property was determined by UV-Vis absorption spectrum where the peak was observed at 320 nm. The crystalline structure and surface morphology of copper nanoparticles were investigated by XRD and SEM respectively. The average crystalline size of nanoparticles calculated by Debye Scherer formula was found to be less than 10 nm having cubical shape. Microbial investigations by macro broth dilution, growth kinetics analysis and disc diffusion method confirmed antimicrobial nature of copper nanoparticles. The study reveals that concentration of copper nanoparticles at 128 ppm shows bacteriostatic effect. Their anti fungal effect was evaluated by testing against Alternaria species. The maximum inhibitory effect was found when copper nanoparticle concentration was 400 ppm or more. Int. J. Appl. Sci. Biotechnol. Vol 7(4): 421-428


2019 ◽  
Vol 103 (2) ◽  
pp. 675-686 ◽  
Author(s):  
Katarzyna Ognik ◽  
Ewelina Cholewińska ◽  
Jerzy Juśkiewicz ◽  
Zenon Zduńczyk ◽  
Krzysztof Tutaj ◽  
...  

2019 ◽  
Vol 32 (4) ◽  
Author(s):  
Linda P. Arendsen ◽  
Ranee Thakar ◽  
Abdul H. Sultan

SUMMARY Health care-associated infections (HAIs) are a global problem associated with significant morbidity and mortality. Controlling the spread of antimicrobial-resistant bacteria is a major public health challenge, and antimicrobial resistance has become one of the most important global problems in current times. The antimicrobial effect of copper has been known for centuries, and ongoing research is being conducted on the use of copper-coated hard and soft surfaces for reduction of microbial contamination and, subsequently, reduction of HAIs. This review provides an overview of the historical and current evidence of the antimicrobial and wound-healing properties of copper and explores its possible utility in obstetrics and gynecology.


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