RuO2/graphene nanoribbon composite supported on screen printed electrode with enhanced electrocatalytic performances toward ethanol and NADH biosensing

Vukojević, Vesna; Đurđić, Slađana; Ognjanović, Miloš; Antić, Bratislav; Kalcher, Kurt; Mutić, Jelena; Stanković, Dalibor M.

doi:10.1016/j.bios.2018.06.038

Cited by 34 publications

(14 citation statements)

References 30 publications

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“…GNRs have also attracted considerable attention in other research fields since, compared with carbon nanotubes, they present a higher area-normalized edge-plane and sometimes a great number of rich edge defects and chemically active sites, which make them a good candidate for electroanalytical applications. As mentioned above, there are few reports on the development of GNR-based electrochemical sensors for the determination of compounds of interest, such as ampyra, diazonin, nimesulide, 3,4-dihydroxyphenylacetic acid, baicalein, levodopa, glucose and ethanol [17][18][19][20][21][22][23][24] .…”

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confidence: 99%

Chemically synthesized chevron-like graphene nanoribbons for electrochemical sensors development: determination of epinephrine

Sainz

Pozo

Vilas‐Varela

et al. 2020

Sci Rep

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We employ chevron-like graphene nanoribbons (GnRs) synthesized by a solution-based chemical route to develop a novel electrochemical sensor for determination of the neurotransmitter epinephrine (EPI). The sensor surface, a glassy carbon electrode modified with GNRs, is characterized by atomic force microscopy, scanning electron microscopy and Raman spectroscopy, which show that the electrode surface modification comprises of bi-dimensional multilayer-stacked GNRs that retain their molecular structure. the charge transfer process occurring at the electrode interface is

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confidence: 99%

Chemically synthesized chevron-like graphene nanoribbons for electrochemical sensors development: determination of epinephrine

Sainz

Pozo

Vilas‐Varela

et al. 2020

Sci Rep

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“…The limit of detection obtained with the integrated GCE/MWCNTs‐Polyarg/NAD + ‐ADH biosensor is comparable or even lower than most of those summarized in Table . Ethanol biosensors based on a single‐walled carbon nanotubes‐reduced graphene oxide nanohybrid modified with the cationic polymer poly(2‐(dimethylamino)ethyl methacrylate) (MADQUAT) , and RuO 2 /graphene nanoribbons composite showed lower limits of detection, although the operating potential is higher than the one used in this work.…”

Section: Resultsmentioning

confidence: 99%

Multi‐walled Carbon Nanotubes Non‐covalently Functionalized with Polyarginine: A New Alternative for the Construction of Reagentless NAD⁺/Dehydrogenase‐based Ethanol Biosensor

2019

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This work reports for the first time the development of a reagentless enzymatic amperometric biosensor for ethanol based on the use of a glassy carbon electrode (GCE) modified with multi‐walled carbon nanotubes (MWCNTs) non‐covalently functionalized with polyarginine (Polyarg) as platform for the robust immobilization of alcohol dehydrogenase (ADH) and NAD+. The new strategy allows to obtain an integrated GCE/MWCNTs‐Polyarg/NAD+‐ADH ethanol biosensor with important advantages compared to the existing ethanol biosensors: avoids the external addition of the cofactor for each measurement, ensures a fast and sensitive quantification of ethanol due to the intimate interaction of the components, and allows the detection at considerably lower potentials due to the catalytic activity of the carbon nanostructures. These unique properties have made possible a very efficient ethanol quantification with a sensitivity of (1487±6) μA M−1, detection limit of 0.65 μM, response time of 8 s, and reproducibility of 5.5 % with a very successful application for the quantification of ethanol in different commercial beverages.

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“…NADH quantification was also performed by using another nanocomposite based on ruthenium dioxide-graphene nanoribbon drop casted on homemade SPE. RuO 2 NPs presented an average diameter of 2 nm forming homogenous mats on the graphene matrix [ 218 ].…”

Section: Metal Nanoparticles and Carbon-based Nanomaterials In (Bio)sensors Designmentioning

confidence: 99%

Metal Nanoparticles and Carbon-Based Nanomaterials for Improved Performances of Electrochemical (Bio)Sensors with Biomedical Applications

et al. 2021

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Monitoring human health for early detection of disease conditions or health disorders is of major clinical importance for maintaining a healthy life. Sensors are small devices employed for qualitative and quantitative determination of various analytes by monitoring their properties using a certain transduction method. A “real-time” biosensor includes a biological recognition receptor (such as an antibody, enzyme, nucleic acid or whole cell) and a transducer to convert the biological binding event to a detectable signal, which is read out indicating both the presence and concentration of the analyte molecule. A wide range of specific analytes with biomedical significance at ultralow concentration can be sensitively detected. In nano(bio)sensors, nanoparticles (NPs) are incorporated into the (bio)sensor design by attachment to the suitably modified platforms. For this purpose, metal nanoparticles have many advantageous properties making them useful in the transducer component of the (bio)sensors. Gold, silver and platinum NPs have been the most popular ones, each form of these metallic NPs exhibiting special surface and interface features, which significantly improve the biocompatibility and transduction of the (bio)sensor compared to the same process in the absence of these NPs. This comprehensive review is focused on the main types of NPs used for electrochemical (bio)sensors design, especially screen-printed electrodes, with their specific medical application due to their improved analytical performances and miniaturized form. Other advantages such as supporting real-time decision and rapid manipulation are pointed out. A special attention is paid to carbon-based nanomaterials (especially carbon nanotubes and graphene), used by themselves or decorated with metal nanoparticles, with excellent features such as high surface area, excellent conductivity, effective catalytic properties and biocompatibility, which confer to these hybrid nanocomposites a wide biomedical applicability.

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RuO2/graphene nanoribbon composite supported on screen printed electrode with enhanced electrocatalytic performances toward ethanol and NADH biosensing

Cited by 34 publications

References 30 publications

Chemically synthesized chevron-like graphene nanoribbons for electrochemical sensors development: determination of epinephrine

Chemically synthesized chevron-like graphene nanoribbons for electrochemical sensors development: determination of epinephrine

Multi‐walled Carbon Nanotubes Non‐covalently Functionalized with Polyarginine: A New Alternative for the Construction of Reagentless NAD⁺/Dehydrogenase‐based Ethanol Biosensor

Metal Nanoparticles and Carbon-Based Nanomaterials for Improved Performances of Electrochemical (Bio)Sensors with Biomedical Applications

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RuO2/graphene nanoribbon composite supported on screen printed electrode with enhanced electrocatalytic performances toward ethanol and NADH biosensing

Cited by 34 publications

References 30 publications

Chemically synthesized chevron-like graphene nanoribbons for electrochemical sensors development: determination of epinephrine

Chemically synthesized chevron-like graphene nanoribbons for electrochemical sensors development: determination of epinephrine

Multi‐walled Carbon Nanotubes Non‐covalently Functionalized with Polyarginine: A New Alternative for the Construction of Reagentless NAD+/Dehydrogenase‐based Ethanol Biosensor

Metal Nanoparticles and Carbon-Based Nanomaterials for Improved Performances of Electrochemical (Bio)Sensors with Biomedical Applications

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Multi‐walled Carbon Nanotubes Non‐covalently Functionalized with Polyarginine: A New Alternative for the Construction of Reagentless NAD⁺/Dehydrogenase‐based Ethanol Biosensor