Fabrication of carbon nanofibers using MEMS technique for future electrochemical biosensors
Document Type
Conference Item
Publication Date
1-1-2022
Abstract
This paper presents the fabrication of the inter-porosity carbon nanofibers (CNFs) obtained by the Carbon Microelectromechanical Systems (C-MEMS) method using electrospinning of SU-8 2100 photoresist polymer, photolithography, and pyrolysis techniques. The optimized electrospinning parameters identified in this research produced smooth inter-porosity CNFs with an average fibre diameter range between 167 ± 58 nm and 197 ± 104 nm. The CNFs samples were subsequently investigated using the cyclic voltammetry (CV) technique at sweep rate 50 mV s−1 with Zobell’s solution as a redox probe in three-electrode configuration CNFs as working electrode (WE), counter electrode (CE), and reference electrode (RE) from the screen-printed electrode (SPE). Based on CV analysis, the inter-porosity CNFs showed that the CV curve obtained at high sweep rates proved that the consumption of redox species rate at the electrode surface is very high. Additionally, the high surface area of our developed CNFs has the potential to be used as massive regions for bacteria detection with further modification of electrode configuration; leading to an increase in the detection sensitivity. © 2022, Springer Nature Switzerland AG.
Keywords
Carbon nanofibers, Electrochemical electrodes, Electromechanical devices, Electrospinning, Fabrication, MEMS, Photoresists, Porosity, Carbon MEMS, Carbon microelectromechanical systems, Carbon nanofibres, Carbon-microelectromechanical systems, Electrochemical biosensor, Electrode configurations, Pyrolysis technique, Screen printed electrodes, Sweep rates, System methods, Cyclic voltammetry
Divisions
biomedengine
Funders
Ministry of Higher Education, Malaysia [Grant no. PR005-2019A],Universiti Malaya [Grant no. IIRG007A-19HWB]
Publication Title
IFMBE Proceedings
Volume
86
Publisher
Springer Science and Business Media Deutschland GmbH
Event Title
6th Kuala Lumpur International Conference on Biomedical Engineering, BioMed 2021
Event Location
Virtual, Online
Event Dates
28-29 July 2021
Event Type
conference