Dataset Information

Fabrication of ?-Fe₂O₃ Nanowires from Abundant and Low-cost Fe Plate for Highly Effective Electrocatalytic Water Splitting.

ABSTRACT: Water splitting is thermodynamically uphill reaction, hence it cannot occur easily, and also highly complicated and challenging reaction in chemistry. In electrocatalytic water splitting, the combination of oxygen and hydrogen evolution reactions produces highly clean and sustainable hydrogen energy and which attracts research communities. Also, fabrication of highly active and low cost materials for water splitting is a major challenge. Therefore, in the present study, ?-Fe₂O₃ nanowires were fabricated from highly available and cost-effective iron plate without any chemical modifications/doping onto the surface of the working electrode with high current density. The fabricated nanowires achieved the current density of 10?mA/cm² at 1.88?V vs. RHE with the scan rate of 50?mV/sec. Stability measurements of the fabricated Fe₂O₃ nanowires were monitored up to 3275?sec with the current density of 9.6?mA/cm² at a constant potential of 1.7?V vs. RHE and scan rate of 50?mV/sec.

SUBMITTER: Arumugam S

PROVIDER: S-EPMC7096520 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Publications

Fabrication of γ-Fe2O3 Nanowires from Abundant and Low-cost Fe Plate for Highly Effective Electrocatalytic Water Splitting.

Arumugam Sivaranjani S Toku Yuhki Y Ju Yang Y

Scientific reports 20200325 1

Water splitting is thermodynamically uphill reaction, hence it cannot occur easily, and also highly complicated and challenging reaction in chemistry. In electrocatalytic water splitting, the combination of oxygen and hydrogen evolution reactions produces highly clean and sustainable hydrogen energy and which attracts research communities. Also, fabrication of highly active and low cost materials for water splitting is a major challenge. Therefore, in the present study, γ-Fe2O3</ ...[more]

PMID: 32214145

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Project description:Introduction: Circulating tumor cells (CTCs) are the transformed tumor cells that can penetrate into the bloodstream and are available at concentrations as low as 1-100 cells per milliliter. To trap CTCs in the blood, one valid and mature technique that has been developed is the magnetophoresis-based separation in a microfluidic channel. Recently, nanostructured platforms have also been developed to trap specific targeted and marker cells in the blood. We aimed to integrate both in one platform to improve trapping. Methods: Here, we developed a numerical scheme and an integrated device that considered the interaction between drag and magnetic forces on paramagnetic labeled cells in the fluid as well as interaction of these two forces with the adhesive force and the surface friction of the nanowires substrate. We aimed on developing a more advanced technique that integrated the magnetophoretic property of some Fe3O4 paramagnetic nanoparticles (PMNPs) with a silicon nanowires (SiNWs) substrate in a microfluidic device to trap MDA-MB231 cell lines as CTCs in the blood. Results: Simulation indicated assuming that the nanoparticles adhere perfectly to the white blood cells (WBCs) and the CTCs, the magnetic moment of the CTCs was almost one order of magnitude larger than that of the WBCs, so its attraction by the magnetic field was much higher. In general with significant statistics, the integrated device can trap almost all of the CTCs on the SiNWs substrate. In the experimental section, we took advantage of the integrated trapping techniques, including micropost barriers, magnetophoresis, and nanowires-based substrate to more effectively isolate the CTCs. Conclusion: The simulation indicated that the proposed device could almost trap all of the CTCs onto the SiNWs substrate, whereas trapping in flat substrates with magnetophoretic force was very low. As a result of the magnetic field gradient, magnetophoretic force was applied to the cells through the nanoparticles, which would efficiently drive down the nanoparticle-tagged cells. For the experimental validation, anti-EpCAM antibodies for specific binding to tumor cells were used. Using this specific targeting method and by statistically counting, it was shown that the proposed technique has excellent performance and results in the trapping efficiency of above 90%.

Dataset Information

Fabrication of ?-Fe₂O₃ Nanowires from Abundant and Low-cost Fe Plate for Highly Effective Electrocatalytic Water Splitting.

Publications

Fabrication of γ-Fe<sub>2</sub>O<sub>3</sub> Nanowires from Abundant and Low-cost Fe Plate for Highly Effective Electrocatalytic Water Splitting.

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Dataset Information

Fabrication of ?-Fe2O3 Nanowires from Abundant and Low-cost Fe Plate for Highly Effective Electrocatalytic Water Splitting.

Publications

Fabrication of γ-Fe<sub>2</sub>O<sub>3</sub> Nanowires from Abundant and Low-cost Fe Plate for Highly Effective Electrocatalytic Water Splitting.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Fabrication of ?-Fe₂O₃ Nanowires from Abundant and Low-cost Fe Plate for Highly Effective Electrocatalytic Water Splitting.