Ultra-sensitive voltammetric simultaneous determination of dopamine, uric acid and ascorbic acid based on a graphene-coated alumina electrode

Taleb, Masoud; Ivanov, Roman; Bereznev, Sergei; Kazemi, Sayed Habib; Hussainova, Irina

doi:10.1007/s00604-017-2510-y

Cited by 40 publications

(19 citation statements)

References 33 publications

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“…Moreover, the peak potential of the individual detection of AA, DA or UA at Au/CRGO/Fc-ac-PPP shifts to a lower potential range compared to the other electrodes. This behavior proves that the kinetics of electron transfer of these analytes has been faster on the nanocomposite than the other electrodes [32]. In addition, the oxidation peaks are separated well compared to the other electrodes.…”

Section: Electrochemical Activities Of Aa Da and Ua On Modified Surfmentioning

confidence: 52%

Nanocomposite Based on Poly (para-phenylene)/Chemical Reduced Graphene Oxide as a Platform for Simultaneous Detection of Ascorbic Acid, Dopamine and Uric Acid

Hsine

Bizid

Mlika

et al. 2020

Sensors

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In this study, an efficient and simple designed nanohybrid created for individual and simultaneous detection of ascorbic acid (AA), dopamine (DA) and uric acid (UA). This nanohybrid is a combination of chemical reduced graphene oxide (CRGO) and redox poly(para-phenylene) (Fc-ac-PP) modified in a lateral position with ferrrocenyl group CRGO/Fc-ac-PPP. The CRGO/Fc-ac-PPP nanohybrid demonstrated a synergistic effect resulting in a large conductivity, surface area and catalytic properties provided by the redox attached ferrocene. Moreover, this nanocomposite is able to detect individually as well as simultaneously AA, DA and UA in a co-existence system with defined and separated redox peaks oxidation. The linear response ranges for AA, DA and UA, when detected simultaneously, are 0.1–10000 μM, 0.0001–1000 μM and 0.1–10000 μM, respectively, and the detection limits (S/N = 3) are 0.046 μM, 0.2 nM and 0.013 μM, respectively. The proposed sensor shown satisfactory results when applied to real spiked urine samples for measuring the abnormal high or lowconcentration of AA, DA and UA in vivo.

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Section: Electrochemical Activities Of Aa Da and Ua On Modified Surfmentioning

confidence: 52%

Nanocomposite Based on Poly (para-phenylene)/Chemical Reduced Graphene Oxide as a Platform for Simultaneous Detection of Ascorbic Acid, Dopamine and Uric Acid

Hsine

Bizid

Mlika

et al. 2020

Sensors

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“…Methane of 99.5 vol.% purity (UN 1971, 2.5) and technical nitrogen 99.5 vol.% (UN 1066) have been used in these experiments. The catalyst-free CVD process was performed at atmospheric pressure and temperature of 1000 °C in methane (CH 4 , flow of 50 cm 3 /min) and nitrogen (N 2 , flowing of 500 cm 3 /min) gas stream [ 21 , 22 ]. Time of the reaction was adjusted depending on the desired structure of the coating; for example, mass gain of 15% of the substrate weight was reached during 20 min of processing.…”

Section: Methodsmentioning

confidence: 99%

“…The morphology of carbon−alumina hybrid nanostructures is controlled by the deposition time, ratio between carbon source (methane) and carrier gas (nitrogen), and the flow rate [ 21 , 23 ]. The deposition time of 20 min (mass gain of 15%) corresponding to 3–7 layers of graphene has led to type of scaffold marked here as “C3”), Figure 1 a,c,e, and deposition time of 120 min produced structures decorated with graphene-like flakes or protrusions, scaffold type marked here as “C4” [ 22 ], Figure 1 b,d,f. These images were obtained with TEM (JEOL JEM-2200FS HR-TEM with two C s -correctors, 200 kV field emission gun (FEG) and in-column energy filter (Omega Filter) configured to produce a high-end energy filtered imaging) and SEM (Zeiss HR Gemini FESEM Ultra 55 equipped with Bruker EDX system ESPRIT 1.8 suitable for energy-dispersive X-ray measurements).…”

Section: Methodsmentioning

confidence: 99%

Biomechanical Features of Graphene-Augmented Inorganic Nanofibrous Scaffolds and Their Physical Interaction with Viruses

et al. 2020

Self Cite

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Nanofibrous substrates and scaffolds are widely being studied as matrices for 3D cell cultures, and disease models as well as for analytics and diagnostic purposes. These scaffolds usually comprise randomly oriented fibers. Much less common are nanofibrous scaffolds made of stiff inorganic materials such as alumina. Well-aligned matrices are a promising tool for evaluation of behavior of biological objects affected by micro/nano-topologies as well as anisotropy. In this work, for the first time, we report a joint analysis of biomechanical properties of new ultra-anisotropic, self-aligned ceramic nanofibers augmented with two modifications of graphene shells (GAIN scaffolds) and their interaction of three different viral types (influenza virus A, picornavirus (human parechovirus) and potato virus). It was discovered that nano-topology and structure of the graphene layers have a significant implication on mechanical properties of GAIN scaffolds resulting in non-linear behavior. It was demonstrated that the viral adhesion to GAIN scaffolds is likely to be guided by physical cues in dependence on mutual steric factors, as the scaffolds lack common cell membrane proteins and receptors which viruses usually deploy for transfection. The study may have implications for selective viral adsorption, infected cells analysis, and potentially opening new tools for anti-viral drugs development.

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“…As shown in Table 1, this work has advantages over published methods [25,[31][32][33][34][35][36] on sensitivity, linear range, and ease of operation. Although the public method [30] is better than this work in terms of detection limit, this work has a widest linear range from 1.0 × 10 À 9 to 1.0 × 10 MÀ > 3 M.…”

Section: Detection Of Inhibition Of [Ru(bpy )3 ] 2 + /Dbae System By mentioning

confidence: 99%

Novel Designing of Chemically Modified Electrode (CME) of the Bio‐MOF‐1 for the Detection of Dopamine Based on Inhibition of [Ru(bpy)₃]²⁺/DBAE System

Dong

Zhang

et al. 2020

Electroanalysis

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Metal organic frameworks (MOFs) have attracted extensive attention in electrochemical research fields due to their high surface area and controlled porosity. Current study is design to investigate the ECL performance of the chemically modified electrode (CME) based on the bio‐MOF‐1, a porous zinc‐adenine framework, which loaded ruthenium complex and employed for the detection of dopamine (DA). The composite material [Ru(bpy)3]2+@bio‐MOF‐1 (Ru‐bMOF) modified carbon glassy electrode (Ru‐bMOF/GCE) exhibited an excellent ECL performance having a linear co‐efficient response (R2=0.9968) for 2‐(dibutyl amino) ethanol (DBAE), a classical ECL co‐reactant was obtained over a concentration range of 1.0×10−9 M to 1.0×10−4 M in 0.10 M pH=6.0 phosphate buffer solution (PBS). Furthermore, DA was detected based on its inhibition effect on [Ru(bpy)3]2+/DBAE system. Compared to traditional analytical methods, this method has various advantages such as simple electrode preparation, quick response, high reproducibility (RSD<2.0 %), low limit of detection (LOD=1.0×10−10 mol/L). This chemical investigated modified electrode had exploited potential for detection of DA.

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Ultra-sensitive voltammetric simultaneous determination of dopamine, uric acid and ascorbic acid based on a graphene-coated alumina electrode

Cited by 40 publications

References 33 publications

Nanocomposite Based on Poly (para-phenylene)/Chemical Reduced Graphene Oxide as a Platform for Simultaneous Detection of Ascorbic Acid, Dopamine and Uric Acid

Nanocomposite Based on Poly (para-phenylene)/Chemical Reduced Graphene Oxide as a Platform for Simultaneous Detection of Ascorbic Acid, Dopamine and Uric Acid

Biomechanical Features of Graphene-Augmented Inorganic Nanofibrous Scaffolds and Their Physical Interaction with Viruses

Novel Designing of Chemically Modified Electrode (CME) of the Bio‐MOF‐1 for the Detection of Dopamine Based on Inhibition of [Ru(bpy)₃]²⁺/DBAE System

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Ultra-sensitive voltammetric simultaneous determination of dopamine, uric acid and ascorbic acid based on a graphene-coated alumina electrode

Cited by 40 publications

References 33 publications

Nanocomposite Based on Poly (para-phenylene)/Chemical Reduced Graphene Oxide as a Platform for Simultaneous Detection of Ascorbic Acid, Dopamine and Uric Acid

Nanocomposite Based on Poly (para-phenylene)/Chemical Reduced Graphene Oxide as a Platform for Simultaneous Detection of Ascorbic Acid, Dopamine and Uric Acid

Biomechanical Features of Graphene-Augmented Inorganic Nanofibrous Scaffolds and Their Physical Interaction with Viruses

Novel Designing of Chemically Modified Electrode (CME) of the Bio‐MOF‐1 for the Detection of Dopamine Based on Inhibition of [Ru(bpy)3]2+/DBAE System

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Novel Designing of Chemically Modified Electrode (CME) of the Bio‐MOF‐1 for the Detection of Dopamine Based on Inhibition of [Ru(bpy)₃]²⁺/DBAE System