Tailor designed exclusive carbon nanomaterial electrodes for off-chip and on-chip electrochemical detection

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• 作者：Aída Martín ; Alberto Escarpa
• 关键词：Carbon nanomaterial ; SWCNT ; MWCNTs ; Microfluidics ; Graphene scaffold film electrode ; Voltammetry ; Chemical sensing
• 刊名：Microchimica Acta
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：184
• 期：1
• 页码：307-313
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Nanochemistry; Nanotechnology; Characterization and Evaluation of Materials; Analytical Chemistry; Microengineering;
• 出版者：Springer Vienna
• ISSN：1436-5073
• 卷排序：184

文摘

The authors describe tailor-designed electrodes based on the use of films of carbonaceous nanomaterials with demostrated conductivitiy at the microscale. These represent a unique conductive material for deposition on adaptable nonconductive substrates. Single-walled and multi-walled carbon nanotubes as well as graphene scaffold film electrodes (SFEs) were designed, and their electroanalytical performance was evaluated by using two different designs. The first is a 3-electrode configuration for off-chip detection, and the second is one for on-chip detection of the biomarkers dopamine and catechol at +0.70 V detection potential (vs. Ag/AgCl). The SFEs were fabricated by filtration of conducting carbon nanomaterials using a tailored template. In our perception, they pave the way for a wide field of opportunities in off-chip and microfluidic electrochemistry because of their reliability, ease of fabrication and remarkable performance that is based on the exclusive use of the carbon nanomaterial transducers.