Simultaneous detection of dopamine and ascorbic acid using silicate network interlinked gold nanoparticles and multi-walled carbon nanotubes

Vinoth, Victor; Wu, Jerry J.; Asiri, Abdullah M.; Anandan, Sambandam

doi:10.1016/j.snb.2015.01.040

Cited by 50 publications

(24 citation statements)

References 65 publications

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“…Gold nanoparticles were prepared. According to a modified surfactant‐directed seed‐mediated approach . An aqueous solution containing 0.1 mol L −1 (7.50 mL) and 0.01 mol L −1 HAuCl 4 (0.25 mL) was prepared.…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, AuNPs have received considerable interests for their special characteristics: small size, unique optical, electrical and magnetic properties, high surface area ratio and an easily modified surface. Many studies have been carried out employing AuNPs as probes to detect drugs . In the literature, cocaine, salmeterol xinafoate, tetracycline antibiotics, ramoplanin, dopamine, ascorbic acid and eugenol have all been determined using AuNPs.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the binding of AuNPs–6‐mercaptopurine and the sensitive detection of 6‐mercaptopurine using resonance Rayleigh light scattering

Wang

et al. 2016

Luminescence

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A highly sensitive method for the detection of 6-mercaptopurine (MP) by resonance Rayleigh light scattering (RLS) method was developed. Gold nanoparticles (AuNPs) were synthesized by a modified seed method and characterized using transmission electron microscopy (TEM). AuNPs were bound to MP via covalent bonding to form the MP-AuNPs complex, which increased the RLS intensity of MP at 347 nm (increased by 65.7%). Under optimum conditions, the magnitude of the enhanced RLS intensity for MP-AuNPs was proportional to MP concentration in the range 0.0681-1.702 μg mL . The linear regression equation was represented as follows: ΔI = 9.31 + 82.42c (r = 0.9948). The limit of detection (LOD, 3σ) was 3.32 ng mL . The system was applied successfully to detect MP in pharmaceuticals. MP recoveries were 99.9-101.7% with a relative standard deviation (RSD) (n = 5) of 0.59-0.77% for three synthetic samples, and 97.5-110.0% with an RSD of 0.98-2.10% (n = 5) for tablet samples.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of the binding of AuNPs–6‐mercaptopurine and the sensitive detection of 6‐mercaptopurine using resonance Rayleigh light scattering

Wang

et al. 2016

Luminescence

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“…CNTs and nanoparticles (NPs) have a broad spectrum of exclusive properties. Metal nanoparticles (MNPs) are mainly attractive because of electric, optical, catalytic and magnetic properties . The nanoparticles with catalytic properties can decrease the over potential of electrochemical reactions and realize the reversibility of some redox reactions, which are irreversible at unmodified electrodes.…”

Section: Electrochemical Sensing Of Da By Using Cnt‐based Materialsmentioning

confidence: 99%

Carbon‐Nanotube‐Based Materials for Electrochemical Sensing of the Neurotransmitter Dopamine

2018

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The development of new tools with outstanding performance for monitoring neurotransmitters is a challenging task in neuroscience. Electrochemical probes have attracted tremendous attention for the identification and quantification of neurotransmitters, owing to their demonstrated potential for quick response, real‐time measurements, elevated selectivity and sensitivity. In this Review, we have focused on the recent developments of carbon nanotube (CNT)‐based electrochemical sensors for dopamine detection. The use of CNTs is beneficial for this task, because of their high tensile strength, flexibility, good electrical conductivity, and low thermal expansion coefficient. Therefore, electrochemical sensing approaches with CNTs have opened the door for researchers working towards neurobiomedical applications.

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“…Recently, Au/CNT hybrid nanomaterials have been exploited for detection of dopamine and ascorbic acid owing to the biocompatibility of AuNPs and unique electronic properties and ease of surface modification of CNTs (Vinoth et al, 2015). Additionally, magnetic properties bestowed by these nanotubes have been exploited for treating neurodegenerative disorders.…”

Section: Brain Targetingmentioning

confidence: 99%

“…These infectious agents show a high level of resistance against numerous antivirus and antibacterial drugs. Recently, functionalized CNTs have shown promising outcomes in the treatment of these diseases owing to their ability to easily conjugate drugs like amphotericin B (Vinoth et al, 2015), dapsone, etc. (Mehra et al, 2015).…”

Section: Treatment Of Infectious Diseasesmentioning

confidence: 99%

Functionalized carbon nanotubes and their promising applications in therapeutics and diagnostics

Singh

Lohan

Sandhu

et al. 2016

Nanobiomaterials in Medical Imaging

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Simultaneous detection of dopamine and ascorbic acid using silicate network interlinked gold nanoparticles and multi-walled carbon nanotubes

Cited by 50 publications

References 65 publications

Investigation of the binding of AuNPs–6‐mercaptopurine and the sensitive detection of 6‐mercaptopurine using resonance Rayleigh light scattering

Investigation of the binding of AuNPs–6‐mercaptopurine and the sensitive detection of 6‐mercaptopurine using resonance Rayleigh light scattering

Carbon‐Nanotube‐Based Materials for Electrochemical Sensing of the Neurotransmitter Dopamine

Functionalized carbon nanotubes and their promising applications in therapeutics and diagnostics

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