Please use this identifier to cite or link to this item:
Title: Fabrication of carbon fibre microelectrode array for neural recording
Authors: Ng, Nicholas Tse Jian
Keywords: Engineering::Mechanical engineering::Bio-mechatronics
Issue Date: 2022
Publisher: Nanyang Technological University
Source: Ng, N. T. J. (2022). Fabrication of carbon fibre microelectrode array for neural recording. Final Year Project (FYP), Nanyang Technological University, Singapore.
Project: B395
Abstract: Microelectrodes are unique electrodes used to study the electrical activity of individual biological cells. Currently microelectrodes are conventionally made with glass or metal. However, these materials are harmful to living organisms. Carbon fibres are more harmless to living organisms due to its chemical and physical properties. This objective of this project is to develop and evaluate multichannel carbon fibre microelectrode array (MEA) for long-time in-vivo neural recording. Firstly, carbon fibres are assessed on their suitability as a microelectrode. The electrical impedance, Z, of the carbon fibre microelectrode must be less than 2MΩ when subjected to an electrical current of 1khz. Afterwards, several methods of insulating the carbon fibres were conducted and evaluated: isolation through 3d printed housing, insulation with polyimide tubing, insulation with nail polish, anodic electrophoretic deposition. In the final design of the microelectrode array, anodic electrophoretic deposition is chosen. The assembly of the microelectrode involves the incorporation of 3d printed parts and the processed carbon fibres. The microelectrode array is implanted in the brain of the Madagascar Hissing Cockroach and evaluated to be satisfactory in its recording capability. Documented with the use of intan RHX recording equipment. Improvements via experimental verification such as SEM imaging are suggested to improve the signal-to-noise ratio and quality of signal recording of the microelectrode array.
Schools: School of Mechanical and Aerospace Engineering 
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:MAE Student Reports (FYP/IA/PA/PI)

Files in This Item:
File Description SizeFormat 
FYP Final Report_Ng Tse Jian Nicholas.pdf
  Restricted Access
1.25 MBAdobe PDFView/Open

Page view(s)

Updated on Apr 18, 2024

Download(s) 50

Updated on Apr 18, 2024

Google ScholarTM


Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.