<b>Dopamine neurotransmitter determination using graphite sheet–graphene nano-sensor</b>
Creators: name: Khajehpour, Mohammad Hossein
name: Ghaffarinejad, Ali
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 340103
subject: Electroanalytical chemistry
classificationCode: 340108
subject: Sensor technology (incl. chemical aspects)
classificationCode: 340199
subject: Analytical chemistry not elsewhere classified
classificationCode: 310101
subject: Analytical biochemistry
classificationCode: 310104
subject: Cell neurochemistry
classificationCode: 310199
subject: Biochemistry and cell biology not elsewhere classified
classificationCode: 321404
subject: Pharmaceutical delivery technologies
classificationCode: 321403
subject: Clinical pharmacy and pharmacy practice
classificationCode: 321402
subject: Clinical pharmacology and therapeutics
classificationCode: 321405
subject: Pharmaceutical sciences
classificationCode: 321499
subject: Pharmacology and pharmaceutical sciences not elsewhere classified
classificationCode: 320202
subject: Clinical chemistry (incl. diagnostics)
classificationCode: 320206
subject: Diagnostic radiography
classificationCode: 320299
subject: Clinical sciences not elsewhere classified
classificationCode: 320501
subject: Medical biochemistry - amino acids and metabolites
classificationCode: 320502
subject: Medical biochemistry - carbohydrates
classificationCode: 320503
subject: Medical biochemistry - inorganic elements and compounds
classificationCode: 320504
subject: Medical biochemistry - lipids
classificationCode: 320505
subject: Medical biochemistry - nucleic acids
classificationCode: 320506
subject: Medical biochemistry - proteins and peptides (incl. medical proteomics)
classificationCode: 320599
subject: Medical biochemistry and metabolomics not elsewhere classified
classificationCode: 320101
subject: Cardiology (incl. cardiovascular diseases)
classificationCode: 320905
subject: Neurology and neuromuscular diseases
classificationCode: 320903
subject: Central nervous system
classificationCode: 320907
subject: Sensory systems
classificationCode: 320999
subject: Neurosciences not elsewhere classified
classificationCode: 520202
subject: Behavioural neuroscience
classificationCode: 520201
subject: Behavioural genetics
classificationCode: 520203
subject: Cognitive neuroscience
classificationCode: 520299
subject: Biological psychology not elsewhere classified
classificationCode: 520206
subject: Psychophysiology
classificationCode: 520205
subject: Psychopharmacology

description: In this study, <b>graphene oxide</b> was electrochemically deposited and reduced on a <b>graphite sheet</b>. The electrode surface morphology was studied by scanning electron microscopy. The performance of the modified electrode in detecting dopamine was investigated. The results indicate that the <b>electrodeposition</b> of <b>reduced graphene oxide</b> onto the electrode surface increases the <b>dopamine</b> oxidation current, decreases the overpotential, and reduces the charge transfer resistance. The efficiency of <b>dopamine detection</b> by this modified electrode was evaluated using <b>cyclic voltammetry</b>, <b>differential pulse voltammetry</b>, and <b>electrochemical impedance spectroscopy</b>. The effects of ... Read more