[7p-N305-1~18] 12.7 Biomedical Engineering and Biochips

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[7p-N305-5] Microelectrode Modified with Co-doped CuO/MWCNTs Composite for Electrochemical Detection of Dopamine

〇(M2)Kulanit LANAMKHAM^1,2, Virgil Christian Castillo¹, Oratai Jongprateep², Jun Ohta¹, Ryoma Okada¹, Kiyotaka Sasagawa¹ (1.NAIST, 2.KU)

Keywords:

Nanopaticulate Co-doped Copper Oxide,Microelectrode,Dopamine detection

Dopamine (DA) is a key neurotransmitter involved in regulating mood, motor function, learning, and memory in the central nervous system. Imbalanced dopamine levels are linked to mental health conditions and brain disorders, including Parkinson’s disease, attention-deficit/hyperactivity disorder (ADHD), and depression [1]. Electro-chemical sensors offer low-cost for real-time monitoring, with fast-scan cyclic voltammetry (FSCV) enabling rapid dopamine detection [2]. This study presents the synthesis of a cobalt-doped copper oxide (Co-doped CuO)/ multiwalled carbon nanotubes (MWCNTs) composite via solution combustion synthesis (SCS). CuO provides less toxicity and a narrow bandgap, while Co-doping enhances electron transfer and catalytic activity [3]. The composite was applied to polyimide-based microelectrodes, offering high sensitivity and suitability for biomedical sensing.