Details

Autor(en) / Beteiligte

• Jamal, Mamun
• Chakrabarty, Sumon
• Shao, Han
• McNulty, David
• Yousuf, Mohammad A.
• Furukawa, Hidemitsu
• Khosla, Ajit
• Razeeb, Kafil M.

Titel

A non enzymatic glutamate sensor based on nickel oxide nanoparticle

Ist Teil von

• Microsystem technologies : sensors, actuators, systems integration, 2018-10, Vol.24 (10), p.4217-4223

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This work reports an enzyme-less glutamate sensor based on nickel oxide modified glassy carbon electrode. The nanoparticles of NiO were synthesized by sol–gel method, and showed high electro-catalytic activity towards glutamate oxidation in 0.1 M NaOH solution. The sensor displays a fast response time of < 5 s and a linear dependency of R 2 0.997 for glutamate concentration of up to 8 mM at an applied potential of + 0.55 V with a sensitivity of 11 µA mM −1  cm −2 and a detection limit of 272 μM (S/N = 3). The interference studies of NiO/GC electrode showed a significant current response for glutamate in the presence of uric acid and ascorbic acid. Thereby, this simple NiO nanoparticle based sensor can be promising platform for the development of a robust enzymeless glutamate sensor.