Study on fluorescence property of dopamine and determination of dopamine by fluorimetry

Wang, Huaiyou; Sun, Yue; Tang, Bo

doi:10.1016/s0039-9140(02)00123-6

Cited by 169 publications

(70 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several research groups have investigated the problems of detection sensitivity and selective determination methods for dopamine. Those methods include fluorimetry [4,5], spectrophotometry [6] and highly selective and sensitive determination with modified glassy carbon electrodes [7]. Recently, the molecular imprinting technique has been described as a versatile tool for cost-effective preparation of polymeric materials with affinity and selectivity towards specific desired molecules [8][9][10].…”

mentioning

confidence: 99%

Dopamine-Imprinted Polymers: Template-Monomer Interactions, Analysis of Template Removal and Application to Solid Phase Extraction

Luliński

Maciejewska

Bamburowicz-Klimkowska

et al. 2007

Molecules

View full text Add to dashboard Cite

A dopamine-imprinted polymer (MIP) was prepared in aqueous methanol solution at 60 o C by free-radical cross-linking polymerization of methacrylic acid in the presence of ethylene glycol dimethacrylate as the cross-linker and dopamine hydrochloride as the template molecule. Its ability to isolate dopamine was evaluated as the basis of a solid phase extraction procedure and compared with that of a non-imprinted polymer (NIP). The binding of dopamine was 84.1% and 29.1% for MIP and NIP, respectively. Various reported post-polymerization treatments to reduce template bleeding were examined. In our case the lowest bleeding was achieved after applying a combined procedure: continuous extraction in a Soxhlet apparatus (CE), followed by microwaveassisted extraction (ME) to a level of 0.061 μg/mL. A simplified model of the templatemonomer complexes allowed rationalization of monomer choice based on the heats of complex formation at a PM3 level of theory.

show abstract

mentioning

confidence: 99%

Dopamine-Imprinted Polymers: Template-Monomer Interactions, Analysis of Template Removal and Application to Solid Phase Extraction

Luliński

Maciejewska

Bamburowicz-Klimkowska

et al. 2007

Molecules

View full text Add to dashboard Cite

show abstract

“…Therefore, it is of great significance to detect dopamine accurately at a physiological level in the earlier prevention and clinical diagnosis of these neurological diseases. To date, various techniques have been developed to detect dopamine, including but not limited to high performance liquid chromatography [6], mass spectrometry, fluorescent spectrometry [7], capillary electrophoresis [8,9], and electrochemiluminescence [10,11]. Despite being reliable and precise, these methods often suffer from drawbacks such as expensive instruments, complex and time-consuming analytical procedures, and the requirement of experienced technical staff.…”

Section: Introductionmentioning

confidence: 99%

Morphologically Tunable MnO2 Nanoparticles Fabrication, Modelling and Their Influences on Electrochemical Sensing Performance toward Dopamine

Liu

et al. 2018

Catalysts

View full text Add to dashboard Cite

Abstract:The morphology or shape of nanomaterials plays an important role in functional applications, especially in the electrochemical sensing performance of nanocomposites modified electrodes. Herein, the morphology-dependent electrochemical sensing properties of MnO 2 -reduced graphene oxide/glass carbon electrode (MnO 2 -RGO/GCE) toward dopamine detection were investigated. Firstly, various morphologies of nanoscale MnO 2 , including MnO 2 nanowires (MnO 2 NWs), MnO 2 nanorods (MnO 2 NRs), and MnO 2 nanotubes (MnO 2 NTs), were synthesized under different hydrothermal conditions. Then the corresponding MnO 2 -RGO/GCEs were fabricated via drop-casting and the subsequent electrochemical reduction method. The oxidation peak currents increase with the electrochemical activity area following the order of MnO 2 NWs-RGO/GCE, MnO 2 NTs-RGO/GCE, and MnO 2 NRs-RGO/GCE. The spatial models for MnO 2 NWs, MnO 2 NTs, and MnO 2 NRs are established and accordingly compared by their specific surface area, explaining well the evident difference in electrochemical responses. Therefore, the MnO 2 NWs-RGO/GCE is selected for dopamine detection due to its better electrochemical sensing performance. The response peak current is found to be linear with dopamine concentration in the range of 8.0 × 10 −8 mol/L-1.0 × 10 −6 mol/L and 1.0 × 10 −6 mol/L-8.0 × 10 −5 mol/L with a lower detection limit of 1 × 10 −9 mol/L (S/N = 3). Finally, MnO 2 NWs-RGO/GCE is successfully used for the determination of dopamine injection samples, with a recovery of 99.6-103%. These findings are of great significance for understanding the relationship between unlimited nanoparticle structure manipulation and performance improvement.

show abstract

“…A variety of techniques have been utilized for the determination of three catecholamines, such as chromatography, [1][2][3] capillary electrophoresis, [4][5][6] spectrophotometry, 7 fluorometry, [8][9][10] and electrochemical 11,12 detection. However, these methods are complicated (they need derivatization or combination with various means of detection).…”

Section: Introductionmentioning

confidence: 99%

Sensitive Assay for Catecholamines in Pharmaceutical Samples and Blood Plasma Using Flow Injection Chemiluminescence Analysis

Tang

Han

et al. 2006

ANAL. SCI.

View full text Add to dashboard Cite

Study on fluorescence property of dopamine and determination of dopamine by fluorimetry

Cited by 169 publications

References 9 publications

Dopamine-Imprinted Polymers: Template-Monomer Interactions, Analysis of Template Removal and Application to Solid Phase Extraction

Dopamine-Imprinted Polymers: Template-Monomer Interactions, Analysis of Template Removal and Application to Solid Phase Extraction

Morphologically Tunable MnO2 Nanoparticles Fabrication, Modelling and Their Influences on Electrochemical Sensing Performance toward Dopamine

Sensitive Assay for Catecholamines in Pharmaceutical Samples and Blood Plasma Using Flow Injection Chemiluminescence Analysis

Contact Info

Product

Resources

About