Scalable fabrication of graphene-assembled multifunctional electrode with efficient electrochemical detection of dopamine and glucose

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dc.contributor.authorJi, Xiaodong
dc.contributor.authorZhao, Xin
dc.contributor.authorZhang, Zixin
dc.contributor.authorSi, Yunfa
dc.contributor.authorQian, Wei
dc.contributor.authorFu, Huaqiang
dc.contributor.authorChen, Zibo
dc.contributor.authorWang, Zhe
dc.contributor.authorJin, Zhugen
dc.contributor.authorHe, Daping
dc.date.accessioned2023-03-06T15:11:11Z
dc.date.available2023-03-06T15:11:11Z
dc.date.issued2023-02-22
dc.description.abstractConventional glassy carbon electrodes (GCE) cannot meet the requirements of future electrodes for wider use due to low conductivity, high cost, non-portability, and lack of flexibility. Therefore, cost-effective and wearable electrode enabling rapid and versatile molecule detection is becoming important, especially with the ever-increasing demand for health monitoring and point-of-care diagnosis. Graphene is considered as an ideal electrode due to its excellent physicochemical properties. Here, we prepare graphene film with ultra-high conductivity and customize the 3-electrode system via a facile and highly controllable laser engraving approach. Benefiting from the ultra-high conductivity (5.65 × 105 Sm−1), the 3-electrode system can be used as multifunctional electrode for direct detection of dopamine (DA) and enzyme-based detection of glucose without further metal deposition. The dynamic ranges from 1–200 µM to 0.5–8.0 mM were observed for DA and glucose, respectively, with a limit of detection (LOD) of 0.6 µM and 0.41 mM. Overall, the excellent target detection capability caused by the ultra-high conductivity and ease modification of graphene films, together with their superb mechanical properties and ease of mass-produced, provides clear potential not only for replacing GCE for various electrochemical studies but also for the development of portable and highperformance electrochemical wearable medical devices.en_UK
dc.identifier.citationJi X, Zhao X, Zhang Z, et al., (2023) Scalable fabrication of graphene-assembled multifunctional electrode with efficient electrochemical detection of dopamine and glucose, Nano Research, Volume 16, Issue 5, May 2023, pp. 6361-6368en_UK
dc.identifier.eissn1998-0000
dc.identifier.issn1998-0124
dc.identifier.urihttps://doi.org/10.1007/s12274-023-5459-7
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19263
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.subjectgraphene filmen_UK
dc.subjectultra-high conductivityen_UK
dc.subjectmultifunctional electrodeen_UK
dc.subjectpoint-of-care diagnosisen_UK
dc.subjectwearable medical devicesen_UK
dc.titleScalable fabrication of graphene-assembled multifunctional electrode with efficient electrochemical detection of dopamine and glucoseen_UK
dc.typeArticleen_UK

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