Dual functional nickel cobalt/MWCNT composite electrode-based electrochemical capacitor and enzymeless glucose biosensor applications: Influence of Ni/Co molar ratio

Ko, Tae Hoon; Seong, Jae-Gyoung; Radhakrishnan, Shankar; Kwak, C.-H.; Khil, Myung-Seob; Kim, Hee Young; Kim, Byoung-Suhk

doi:10.1016/j.jiec.2019.01.009

Cited by 37 publications

(12 citation statements)

References 39 publications

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“…Biosensors have been employed as a sensitive and selective analytical approach for the determination of a wide range of biological and pharmaceutical compounds. − On the basis of the biorecognition element, biosensors are divided into different categories, such as enzymatic biosensors, DNA biosensors, aptamers, and so on. − Due to the specific reaction of the biorecognition element in biosensors and the ability of specific analysis of this class of analytical systems as well as their ability to become portable kits, many researchers have focused on this class of analytical tools. − In contrast, biosensors can be divided into different categories based on how their output signal is detected; the most straightforward and most sensitive biosensors are electrochemical biosensors . However, the low conductivity of the biorecognition element makes the analytical sensitivity of electrochemical sensors difficult .…”

Section: Introductionmentioning

confidence: 99%

Guanine-Based DNA Biosensor Amplified with Pt/SWCNTs Nanocomposite as Analytical Tool for Nanomolar Determination of Daunorubicin as an Anticancer Drug: A Docking/Experimental Investigation

Karimi-Maleh

Alizadeh

Orooji

et al. 2021

Ind. Eng. Chem. Res.

383

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Daunorubicin is a famous anthracycline anticancer chemotherapy drug with many side effects that is very important to measure in biological samples. A daunorubicin electrochemical biosensor was fabricated in this study using ds-DNA as the biorecognition element and glassy carbon electrode (GCE) amplified by Pt/SWCNTs as a sensor. The synthetization of Pt/SWCNTs was done by the polyol method, and their characterization was accomplished via XRD, EDS, and TEM methods. The results showed a diameter of about 5.0 nm for the Pt nanoparticle decorated at the surface of SWCNTs. The morphological and conductivity properties of Pt/SWCNTs/GCE were investigated by EIS and AFM methods, and the results confirmed that Pt/SWCNTs/GCE had a high surface area and high conductivity. ds-DNA/Pt/SWCNTs/GCE showed an oxidation signal relative to that of the guanine base at the potential of 847 mV and a positive shift after interaction with the daunorubicin anticancer drug. This point confirms the intercalation reaction between the guanine base in the ds-DNA structure and the drug that could be used as an analytical factor for the determination of daunorubicin. Furthermore, molecular docking study is used to predict the interaction site of daunorubicin with DNA. It is found that daunorubicin interacts with guanine bases of DNA via an intercalative mode. Kinetic investigation showed an association equilibrium constant (K a) of about 5.044 × 103 M–1 between ds-DNA and daunorubicin. The differential pulse voltammetric results showed a linear dynamic range of 4.0 nM to 250.0 μM with a detection limit of 1.0 nM for determination of daunorubicin on the surface of ds-DNA/Pt/SWCNTs/GCE. Finally, ds-DNA/Pt/SWCNTs/GCE was successfully used for the determination of daunorubicin in injection samples with a recovery range of 98.27–10313%.

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Section: Introductionmentioning

confidence: 99%

Guanine-Based DNA Biosensor Amplified with Pt/SWCNTs Nanocomposite as Analytical Tool for Nanomolar Determination of Daunorubicin as an Anticancer Drug: A Docking/Experimental Investigation

Karimi-Maleh

Alizadeh

Orooji

et al. 2021

Ind. Eng. Chem. Res.

383

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“…As seen in Figure S1a, three characteristic diffraction peaks of NiO cubic structure appeared at 2θ = 37.7°, 43.6°, 63.2°, and 75.8°, belonging to the (111), (200), (220), and (311) planes, respectively. The strongest peak was observed at 43.6°, which demonstrated that the NiO nanoparticles had a crystal size of ∼10.0 nm, obtained by the Debye−Scherrer equation D = 0.89λ/(β cos θ), 28 where θ is scattering angle, λ is the X-ray wavelength used, β is the full width at half-maximum of Bragg's reflection, and k is a shape factor. Meanwhile, the FE-SEM image also showed that the particle size was about 13.2 nm (Figure S1b), which is also in good agreement with the XRD result.…”

Section: ■ Experimental Sectionmentioning

confidence: 95%

Flexible Transparent Symmetric Solid-State Supercapacitors Based on NiO-Decorated Nanofiber-Based Composite Electrodes with Excellent Mechanical Flexibility and Cyclability

Kwak

Lee

et al. 2020

ACS Appl. Energy Mater.

Self Cite

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We have prepared the flexible and transparent symmetric solid-state supercapacitors based on the nanofiber-based composite (NFC) electrodes decorated with NiO nanoparticles which exhibit better electrochemical performance, optical transmittance, and flexibility compared to the NiO-decorated ITO (NiO@ITO) electrodes as a standard system. The structures, morphologies, and its electrochemical properties of the flexible and transparent NiOdecorated NFC (NiO@NFC) electrodes were investigated. SEM analysis confirmed that the NiO nanoparticles were well coated onto the flexible and transparent NFC electrodes, which were prepared by a simple spin-coating of the silver nanowires (AgNWs) dispersion on the flexible and transparent (>90.3% at 550 nm wavelength) NFC film. The obtained NiO@NFC electrode showed a good optical transmittance of ∼75.0%, lower sheet resistivity of ∼16 Ω sq −1 , and excellent mechanical flexibility at a bending radius of 1 mm, which were superior to the NiO@ITO electrodes. The assembled NiO@NFC//NiO@NFC and NiO@ITO//NiO@ITO symmetric devices delivered a maximum capacitance of 161 and 85 F g −1 at 1.0 A g −1 , respectively. Moreover, the fabricated NiO@NFC// NiO@NFC symmetric device showed excellent capacitance retention of ∼96.0% at the higher current density of 10 A g −1 after 5000 cycles and also a maximum energy density of 22 Wh kg −1 , which was about 2 times higher than the NiO@ITO//NiO@ITO symmetric device (∼11.8 Wh kg −1 ).

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“…The main benefits of the composite film over the pure polymer is the enhancement in the electrical, mechanical and tensile properties of the polymer composites [12,13]. The enhancement in the properties of the composite film is mainly due to the interaction between the filler materials and the carbon chain groups in the polymer matrix [14,15]. Over several classes of polymers available, polyvinylidene fluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride which has high resistance towards the variety of solvents(acids, and bases) and has a low density compared to other fluoropolymers [16].…”

Section: Introductionmentioning

confidence: 99%

Free-Standing PVDF/Reduced Graphene Oxide Film for All-Solid-State Flexible Supercapacitors towards Self-Powered Systems

et al. 2020

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The development of polymer-based devices has attracted much attention due to their miniaturization, flexibility, lightweight and sustainable power sources with high efficiency in the field of wearable/portable electronics, and energy system. In this work, we proposed a polyvinylidene fluoride (PVDF)-based composite matrix for both energy harvesting and energy storage applications. The physicochemical characterizations, such as X-ray diffraction, laser Raman, and field-emission scanning electron microscopy (FE-SEM) analyses, were performed for the electrospun PVDF/sodium niobate and PVDF/reduced graphene oxide composite film. The electrospun PVDF/sodium niobate nanofibrous mat has been utilized for the energy harvester which shows an open circuit voltage of 40 V (peak to peak) at an applied compressive force of 40 N. The PVDF/reduced graphene oxide composite film acts as the electrode for the symmetric supercapacitor (SSC) device fabrication and investigated for their supercapacitive properties. Finally, the self-charging system has been assembled using PVDF/sodium niobate (energy harvester), and PVDF/reduced graphene oxide SSC (energy storage) and the self-charging capability is investigated. The proposed self-charging system can create a pathway for the all-polymer based composite high-performance self-charging system.

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Dual functional nickel cobalt/MWCNT composite electrode-based electrochemical capacitor and enzymeless glucose biosensor applications: Influence of Ni/Co molar ratio

Cited by 37 publications

References 39 publications

Guanine-Based DNA Biosensor Amplified with Pt/SWCNTs Nanocomposite as Analytical Tool for Nanomolar Determination of Daunorubicin as an Anticancer Drug: A Docking/Experimental Investigation

Guanine-Based DNA Biosensor Amplified with Pt/SWCNTs Nanocomposite as Analytical Tool for Nanomolar Determination of Daunorubicin as an Anticancer Drug: A Docking/Experimental Investigation

Flexible Transparent Symmetric Solid-State Supercapacitors Based on NiO-Decorated Nanofiber-Based Composite Electrodes with Excellent Mechanical Flexibility and Cyclability

Free-Standing PVDF/Reduced Graphene Oxide Film for All-Solid-State Flexible Supercapacitors towards Self-Powered Systems

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