Highly selective and sensitive determination of dopamine by the novel molecularly imprinted poly(nicotinamide)/CuO nanoparticles modified electrode

Enhanced Charge Collection in MOF‐525–PEDOT Nanotube Composites Enable Highly Sensitive Biosensing

“…In the literature, although few modified electrodes showed low detection limits, their linear ranges were relatively narrow. For example, porphyrin‐functionalized graphene‐modified electrodes, gold@carbon dots‐chitosan modified electrodes, hollow nitrogen‐doped carbon microspheres modified electrodes, molecularly imprinted electropolymers/copper oxide nanoparticle‐modified electrodes, carbon‐functionalized metal organic framework/Nafion composites showed the lower detection limits of 0.01 × 10 −6 , 0.001 × 10 −6 , 0.02 × 10 −6 , 0.008 × 10 −6 , and 0.008 × 10 −6 m , respectively, toward the detection of DA, but their linear detection ranges were relatively narrow (0.01–70.0 × 10 −6 , 0.1–30 × 10 −6 , 5–70 × 10 −6 , 0.02–25 × 10 −6 , and 0.03–10 × 10 −6 m , respectively) 27. More importantly, the sensing performance of our MOF‐525–PEDOT NT sample was superior to several other carbon‐based materials, indicating that MOF–PEDOT nanocomposites are a good platform to expand the sensing capability to different analytes for electrochemical sensors.…”

Dispersive micro-solid-phase extraction of dopamine, epinephrine and norepinephrine from biological samples based on green deep eutectic solvents and Fe3O4@MIL-100 (Fe) core–shell nanoparticles grafted with pyrocatechol

“…The characteristics of our method (LOD, linear range (LR), r 2 , RSD, recovery (R), EF and sorption capacity) were compared with molecularly imprinted micro-solid-phase extraction, 53 single-walled carbon nanotubes, 54 molecularly imprinted solid phase micro-extraction fiber, 55 molecularly imprinted poly (nicotinamide)/CuO nanoparticles modified electrode, 56 and open-tubular capillary electro-chromatography (CEC) using grapheme oxide molecularly imprinted polymers as the stationary phase. 3 As it can be observed from Table 3, the characteristic parameters of this work have proven to be similar to or better than those of other reported methods.…”

Fabrication of 3D honeycomb-like porous polyurethane-functionalized reduced graphene oxide for detection of dopamine

“…DA is also used for the prevention and treatment of neurological disorders such as schizophrenia, Parkinson's disease, Alzheimer's disease, and HIV (Li et al, 2015a). Moreover, DA and ascorbic acid (AA) usually coexist in clinical samples and interfere with each other during their electrochemical voltammetry responses at nearly the same potential (Liu et al, 2016).…”