Multicolor colorimetric detection of dopamine based on iodide-responsive copper–gold nanoparticles
Yufeng Sun, Minjie Peng, Aiguo Wu, Yujie Zhang
Abstract
Dopamine (DA) is one of the most essential catecholamine neurotransmitters in the human body. A rapid colorimetric detection method for DA in urine and serum was established in this work using unmodified iodide-responsive copper-gold nanoparticles (Cu-Au NPs). The detection method provides a rapid response with color variability within 15 min at room temperature. In addition, the colorimetric probe has elevated stability, excellent selectivity and resistance to interference.
Topics & Concepts
IodideDopamineChemistryCopperSelectivityColloidal goldNanoparticleColorimetryUrineChromatographyInorganic chemistryNanotechnologyMaterials scienceBiochemistryOrganic chemistryBiologyNeuroscienceCatalysisElectrochemical sensors and biosensorsAdvanced biosensing and bioanalysis techniquesAdvanced Nanomaterials in Catalysis