Electrochemical Pretreatment of Single and Multiwall CNT-based biosensors
Publish place: Medbiotech Journal، Vol: 4، Issue: 2
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_MBT-4-2_002
تاریخ نمایه سازی: 23 تیر 1399
Abstract:
This paper addresses recent advance in electrochemical pretreatment of Carbon-Nanotubes (CNT) based Nanobiosensors. CNT which has been produced by different processes, i.e. arc-discharge and chemical vapor deposition (CVD), subjected to the electrochemical activation. As for ARCCNT the anodic pretreatment resulted in a dramatic improvement in the electrochemical reactivity (cycle Voltammetric test in 1.5 V) while CVD-CNT appeared to be resistant to the anodic activation. Such a huge difference was illustrated through NADH, ascorbic acid hydrogen peroxide and hydrazine model redox systems. The influence of the pretreatment potential and time is examined. The results herein offer a better understanding of the electrochemical reactivity of CNT. Common design of CNT-based Nanobiosensors along with practical examples of such novel devices is strongly discussed.
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Authors
Hamad Mobarak
Department of Chemistry, Qatar University, Qatar
Sabah Al-Rafat
Department of Chemistry, Qatar University, Qatar