{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Sekar S"],"funding":["National Research Foundation (NRF) of Korea","Korean government (MSIT)","Ministry of Education of korea"],"pagination":["124"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12937753"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["16(2)"],"pubmed_abstract":["We report a highly sensitive and interference-free electrochemical sensor for dopamine (DA) detection in the presence of uric acid (UA) and ascorbic acid (AA), based on an in situ deposited graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) and polymethyl thymol blue (PMTB) nanohybrid modified screen-printed carbon electrode (SPCE). The as-fabricated g-C<sub>3</sub>N<sub>4</sub>/PMTB/SPCE was thoroughly characterized using various physicochemical techniques. The electrochemical behavior of the modified electrode was systematically investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The g-C<sub>3</sub>N<sub>4</sub>/PMTB/SPCE exhibited excellent electrocatalytic activity toward the selective oxidation of DA under optimized experimental conditions, including"],"journal":["Biosensors"],"pubmed_title":["Metal-Free Electrochemical Dopamine Sensing Using a g-C&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt;/Polymethyl Thymol Blue Nanohybrid."],"pmcid":["PMC12937753"],"funding_grant_id":["RS202300249778","2021R1I1A1A01049638; RS-2023-NR076644, RS-2022-NR075805","RS-2021-NR060086"],"pubmed_authors":["Lee S","Chang SC","Selvan KS","Sadhasivam S","Ilanchezhiyan P","Lee Y","Sekar S","Manikandan R"],"additional_accession":[]},"is_claimable":false,"name":"Metal-Free Electrochemical Dopamine Sensing Using a g-C&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt;/Polymethyl Thymol Blue Nanohybrid.","description":"We report a highly sensitive and interference-free electrochemical sensor for dopamine (DA) detection in the presence of uric acid (UA) and ascorbic acid (AA), based on an in situ deposited graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) and polymethyl thymol blue (PMTB) nanohybrid modified screen-printed carbon electrode (SPCE). The as-fabricated g-C<sub>3</sub>N<sub>4</sub>/PMTB/SPCE was thoroughly characterized using various physicochemical techniques. The electrochemical behavior of the modified electrode was systematically investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The g-C<sub>3</sub>N<sub>4</sub>/PMTB/SPCE exhibited excellent electrocatalytic activity toward the selective oxidation of DA under optimized experimental conditions, including","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Feb","modification":"2026-07-11T03:15:12.591Z","creation":"2026-07-11T03:11:48.513Z"},"accession":"S-EPMC12937753","cross_references":{"pubmed":["41744742"],"doi":["10.3390/bios16020124"]}}