Abstract
Mesoporous graphene (MG) synthesized via a facile hydrothermal method using soft‐template, triblock copolymer P123 and graphene oxide was utilized for the detection of dopamine (DA) in the presence of ascorbic acid (AA). The structure and morphology of the obtained MG were analyzed by X‐ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy, high‐resolution transmission electron microscopy, and nitrogen adsorption–desorption isotherms. The obtained MG was dispersed in DMF solution and then drop‐casted on to a platinum plate. It was primarily tested for electrochemical sensing of biomolecules. Cyclic voltammetry and differential pulse voltammetry (DPV) were used to evaluate the electrochemical behaviors of MG on a platinum electrode. DPV facilitated selective and sensitive detection of DA in the presence of a high concentration of AA. MG showed a faster electron transfer rate and increased current density. It exhibited good sensitivity, selectivity, and a linear relationship with concentration, with a 7 μM limit of detection, suggesting that MG is a promising material for electrochemical sensing applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
