A Novel Bioelectrochemical Sensor Based on Immobilized Urease on the Surface of Nickel Oxide Nanoparticle and Polypyrrole Composite Modified Pt Electrode

2019 ◽  
Vol 31 (12) ◽  
pp. 2530-2537 ◽  
Author(s):  
Maliheh Hosseinian ◽  
Ghasem Najafpour Darzi ◽  
Ahmad Rahimpour
Keyword(s):  
Nickel Oxide ◽  
Pt Electrode ◽  
Nickel Oxide Nanoparticle ◽  
Oxide Nanoparticle ◽  
Polypyrrole Composite

scholarly journals Oxidative stress generated at nickel oxide nanoparticle interface results in bacterial membrane damage leading to cell death

RSC Advances ◽  
2019 ◽  
Vol 9 (43) ◽  
pp. 24888-24894 ◽  
Author(s):  
Nibedita Behera ◽  
Manoranjan Arakha ◽  
Mamali Priyadarshinee ◽  
Biraja S. Pattanayak ◽  
Siba Soren ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Cell Death ◽  
Nickel Oxide ◽  
Metal Oxide Nanoparticles ◽  
Membrane Damage ◽  
Oxide Nanoparticles ◽  
Bacterial Membrane ◽  
Antibacterial Effects ◽  
Nickel Oxide Nanoparticle ◽  
Oxide Nanoparticle

Metal oxide nanoparticles (NPs) have shown enhanced antibacterial effects against many bacteria.

scholarly journals In Situ Transmission Electron Microscopy Graphene Liquid Cell on Chemical Sodiation of Nickel Oxide Nanoparticle

2017 ◽  
Vol 23 (S1) ◽  
pp. 204-205
Author(s):  
Frank Jaksoni Mweta ◽  
Joon Ha Chang ◽  
Hyeon Kook Seo ◽  
Sung Joo Kim ◽  
Jun Young Cheong ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Nickel Oxide ◽  
Transmission Electron ◽  
Nickel Oxide Nanoparticle ◽  
Liquid Cell ◽  
Oxide Nanoparticle

scholarly journals Differential Electroanalysis of Dopamine in the Presence of a Large Excess of Ascorbic Acid at a Nickel Oxide Nanoparticle-Modified Glassy Carbon Electrode

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Zahrah T. Althagafi ◽  
Jalal T. Althakafy ◽  
Badriah A. Al Jahdaly ◽  
Mohamed I. Awad
Keyword(s):  
Ascorbic Acid ◽  
Nickel Oxide ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Electrochemical Determination ◽  
Carbon Electrode ◽  
Large Excess ◽  
Nickel Oxide Nanoparticle ◽  
Oxide Nanoparticle

Electrochemical determination of dopamine (DA) in the presence of a large excess of ascorbic acid (AA) in their coexistence at a nickel oxide nanoparticle-modified preoxidized glassy carbon electrode (GCox/nano-NiOx) is achieved. The GCox/nano-NiOx electrode is prepared by electrodeposition of nickel nanoparticles (nano-Ni) onto an electrochemically activated glassy carbon (GC) electrode, and the thus prepared nano-Ni were subjected to electrochemical oxidation in alkaline medium for the formation of nickel oxide (NiOx). Modified electrodes were electrochemically and morphologically characterized. The effect of loading level of nickel was investigated by changing the number of potential cycles for the deposition of nano-Ni, i.e., 1, 2, 5, and 10 potential cycles, in the potential range from 0 to -1.0 V vs. SCE. Also, the experimental and instrumental parameters were optimized. Experimental results showed that the modified electrode differentiates well the oxidation peaks of DA and AA enabling the electrochemical determination of DA in the presence of a large excess of AA. Remarkably, it is found that the oxidation current of DA is 2 times larger than that of AA even the concentration of AA is about 5 times larger than that of DA. The LOD and LOQ of DA were calculated and were found to equal 0.69 and 2.3 mM, respectively. This offers the advantage of simple and selective detection of DA free of the interference of AA in real samples.

Femtoseconds soliton mode-locked erbium-doped fiber laser based on nickel oxide nanoparticle saturable absorber

2017 ◽  
Vol 15 (10) ◽  
pp. 100602 ◽  
Author(s):  
A. Nady A. Nady ◽  
M. H. M. Ahmed M. H. M. Ahmed ◽  
A. A. Latiff A. A. Latiff ◽  
C. H. Raymond Ooi C. H. Raymond Ooi ◽  
S. W. Harun S. W. Harun
Keyword(s):  
Nickel Oxide ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Nickel Oxide Nanoparticle ◽  
Erbium Doped ◽  
Oxide Nanoparticle
Sign in / Sign up

Export Citation Format

Share Document