Copper oxide integrated perylene diimide self-assembled graphitic pencil for robust non-enzymatic dopamine detection

Autor: Muhammad Khalid, Khalid Mahmood, Muhammad Yaqub, Mian Hasnain Nawaz, Umay Amara, Naeem Akhtar, Sara Riaz, Akhtar Hayat, Muhammad Nasir
Rok vydání: 2021
Předmět:
Zdroj: RSC Advances. 11:25084-25095
ISSN: 2046-2069
DOI: 10.1039/d1ra03908c
Popis: Exploring a robust, extremely sensitive, cost-effective and reliable assay platform for the precise analysis of dopamine (DA) has become a big challenge predominantly at the clinical level. To participate in this quest, herein, we fabricated a perylene diimide (PDI) self-assembled graphitic surface of the graphitic pencil electrode (GPE) anchored copper oxide (CuO). The self-assembled N-rich PDI led to the fast movement of ions by decreasing the bandgap and improved the electron transport kinetics with more exposed catalytic active sites, thus resulting in the robust electrochemical sensing of DA. The designed sensor exhibited good sensitivity (4 μM
Databáze: OpenAIRE