Electrochemical performance of magnetic nanoparticle-decorated reduced graphene oxide (MRGO) in various aqueous electrolyte solutions

Patil, Sandip K.; Shingte, S. R.; Karade, Vijay; Kim, J. H.; Kulkarni, Raviraj M.; Chougale, Ashok D.; Patil, Prasad

doi:10.1007/s10008-020-04866-x

Cited by 9 publications

(4 citation statements)

References 68 publications

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“…19-0629). This reveals the coexistence of Fe 3 O 4 NPs and RGO in the MRGO nanocomposite . The Fourier transform infrared (FTIR) spectrum of MRGO-NH 2 is shown in Figure (B).…”

Section: Results and Discussionmentioning

confidence: 85%

“…The magnitude of the anodic peak current ( I ap ) for RGO-NH 2 is 89.13 μA and that for MRGO-NH 2 is 149.10 μA. The increased signal for MRGO is due to the collective result of the conductivity of RGO and the redox function of MNPs . Therefore, MRGO-NH 2 was used as a platform material for sandwich-type immunosensor fabrication.…”

Section: Results and Discussionmentioning

confidence: 99%

“…This reveals the coexistence of Fe 3 O 4 NPs and RGO in the MRGO nanocomposite. 35 The Fourier transform infrared (FTIR) spectrum of MRGO-NH 2 is shown in Figure 1(B). The bands present in the regions of 1115 and 1644 cm −1 were assigned to stretching vibrations of epoxy C−O and aromatic C�C bonds of rGO, respectively.…”

Section: Characterization Of Mrgo-nhmentioning

confidence: 99%

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Electrochemical Detection of a Breast Cancer Biomarker with an Amine-Functionalized Nanocomposite Pt–Fe₃O₄–MWCNTs–NH₂ as a Signal-Amplifying Label

Patil,

Karade,

Kim

et al. 2024

ACS Appl. Mater. Interfaces

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We report an ultrasensitive sandwich-type electrochemical immunosensor to detect the breast cancer biomarker CA 15-3. Amine-functionalized composite of reduced graphene oxide and Fe 3 O 4 nanoparticles (MRGO-NH 2 ) was used as an electrochemical sensing platform material to modify the electrodes. The nanocomposite comprising Pt and Fe 3 O 4 nanoparticles (NPs) anchored on multiwalled carbon nanotubes (Pt−Fe 3 O 4 − MWCNTs−NH 2 ) was utilized as a pseudoenzymatic signalamplifying label. Compared to reduced graphene oxide, the composite MRGO-NH 2 platform material demonstrated a higher electrochemical signal. In the Pt−Fe 3 O 4 −MWCNTs−NH 2 label, multiwalled carbon nanotubes provided the substratum to anchor abundant catalytic Pt and Fe 3 O 4 NPs. The nanocomposites were thoroughly characterized using transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. An electroanalytical study and prevalidation of the immunosensor was carried out. The immunosensor exhibited exceptional capabilities in detecting CA 15-3, offering a wider linear range of 0.0005−100 U mL −1 and a lower detection limit of 0.00008 U mL −1 . Moreover, the designed immunosensor showed good specificity, reproducibility, and acceptable stability. The sensor was successfully applied to analyze samples from breast cancer patients, yielding reliable results.

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“…19-0629). This reveals the coexistence of Fe 3 O 4 NPs and RGO in the MRGO nanocomposite . The Fourier transform infrared (FTIR) spectrum of MRGO-NH 2 is shown in Figure (B).…”

Section: Results and Discussionmentioning

confidence: 85%

Section: Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical Detection of a Breast Cancer Biomarker with an Amine-Functionalized Nanocomposite Pt–Fe₃O₄–MWCNTs–NH₂ as a Signal-Amplifying Label

Patil,

Karade,

Kim

et al. 2024

ACS Appl. Mater. Interfaces

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“…All of these results indicate that Fe 3 O 4 NPs/NC composite is a better choice as a negative electrode. It has been reported that KOH electrolyte is better suited for magnetic NPs/RGO in terms of gravimetric capacitance and cycle life than Na 2 SO 4 due to the higher ionic mobility of K + and OHions [198]. Fe 3 O 4 -graphene nanocomposites/few-layered graphene were explored in various electrolyte media namely, Li 2 SO 4 , Na 2 SO 4 , Cs 2 SO 4 , Rb 2 SO 4 and MgSO 4 at 1 M concentration [199].…”

Section: Anode For Asymmetric Supercapacitormentioning

confidence: 99%

Nanoparticle-enhanced multifunctional nanocarbons—recent advances on electrochemical energy storage applications

Ghosh

Polaki

Macrelli

et al. 2022

J. Phys. D: Appl. Phys.

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As renewable energy is becoming a critical energy source to meet the global demand, electrochemical energy storage devices become indispensable for the efficient energy storage and reliable supply. The electrode material is the key factor determining the energy storage capacity and the power delivery of the devices. Carbon-based materials, specifically graphite, activated carbons etc., are extensively used as for electrodes, yet their low energy densities impede the development of advanced energy storage materials. Decoration by nanoparticles of metals, metal oxides, nitrides, carbides, phosphides, chalcogenides, and bimetallic components is one of the most promising and easy-to-implement strategies to significantly enhance the structural and electronic properties, pore refinement, charge-storage, and charge-transfer kinetics of both pristine and doped carbon structures, thereby making their performance promising for next-generation energy storage devices. Structuring the materials at nanoscale is another probable route for better rate performance and charge-transfer kinetics. This review covers the state-of-art nanoparticle decorated nanocarbons as materials for battery anode, metal-ion capacitor anode, and supercapacitor electrode. A critical analysis of the elemental composition, structure, associated physico-chemical properties and performance relationships of nanoparticle-decorated nanocarbon electrodes is provided as well to inform the future development of the next generation of advanced energy storage materials and devices.

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Magnetite–Graphene-Based Composites and Their Potential Application as Supercapacitor Electrode Material

Choudhury

Moholkar

2022

Handbook of Magnetic Hybrid Nanoalloys and Their Nanocomposites

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Electrochemical performance of magnetic nanoparticle-decorated reduced graphene oxide (MRGO) in various aqueous electrolyte solutions

Cited by 9 publications

References 68 publications

Electrochemical Detection of a Breast Cancer Biomarker with an Amine-Functionalized Nanocomposite Pt–Fe₃O₄–MWCNTs–NH₂ as a Signal-Amplifying Label

Electrochemical Detection of a Breast Cancer Biomarker with an Amine-Functionalized Nanocomposite Pt–Fe₃O₄–MWCNTs–NH₂ as a Signal-Amplifying Label

Nanoparticle-enhanced multifunctional nanocarbons—recent advances on electrochemical energy storage applications

Magnetite–Graphene-Based Composites and Their Potential Application as Supercapacitor Electrode Material

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Electrochemical performance of magnetic nanoparticle-decorated reduced graphene oxide (MRGO) in various aqueous electrolyte solutions

Cited by 9 publications

References 68 publications

Electrochemical Detection of a Breast Cancer Biomarker with an Amine-Functionalized Nanocomposite Pt–Fe3O4–MWCNTs–NH2 as a Signal-Amplifying Label

Electrochemical Detection of a Breast Cancer Biomarker with an Amine-Functionalized Nanocomposite Pt–Fe3O4–MWCNTs–NH2 as a Signal-Amplifying Label

Nanoparticle-enhanced multifunctional nanocarbons—recent advances on electrochemical energy storage applications

Magnetite–Graphene-Based Composites and Their Potential Application as Supercapacitor Electrode Material

Contact Info

Product

Resources

About

Electrochemical Detection of a Breast Cancer Biomarker with an Amine-Functionalized Nanocomposite Pt–Fe₃O₄–MWCNTs–NH₂ as a Signal-Amplifying Label

Electrochemical Detection of a Breast Cancer Biomarker with an Amine-Functionalized Nanocomposite Pt–Fe₃O₄–MWCNTs–NH₂ as a Signal-Amplifying Label