Preparation of Mesoporous Dysprosium Oxide for Dynamic Hydrogen Peroxide Detection without Enzymes

Yan, Yibo; Zhao, Jun; Lee, Jongmin

doi:10.1002/celc.201600421

Cited by 8 publications

References 33 publications

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Recent Advances in DNA Nanotechnology‐Based Sensing Platforms for Rapid Virus Detection

Dong,

Guo,

Wang

et al. 2024

ChemBioChem

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Several major viral pandemics in history have significantly impacted the public health of human beings. The COVID‐19 pandemic has further underscored the critical need for early detection and screening of infected individuals. However, current detection techniques are confronted with deficiencies in sensitivity and accuracy, restricting the capability of detecting trace amounts of viruses in human bodies and in the environments.The advent of DNA nanotechnology has opened up a feasible solution for rapid and sensitive virus determination. By harnessing the designability and addressability of DNA nanostructures, a range of rapid virus sensing platforms have been proposed. This review overviewed the recent progress, application, and prospect of DNA nanotechnology‐based rapid virus detection platforms. Furthermore, the challenges and developmental prospects in this field were discussed.

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Recent Advances in DNA Nanotechnology‐Based Sensing Platforms for Rapid Virus Detection

Dong,

Guo,

Wang

et al. 2024

ChemBioChem

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Tyramine Functionalized Graphene: Metal‐Free Electrochemical Non‐Enzymatic Biosensing of Hydrogen Peroxide

et al. 2018

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We report here non‐enzymatic electrochemical biosensing of H2O2 using a highly stable, metal‐free, tyramine functionalized graphene (T‐GO) based electrocatalytic system. The surface functionalization of tyramine on graphene was carried out chemically. The obtained sheets were characterized by scanning electron microscopy (SEM), X‐ray diffraction (XRD) as well as X‐ray photoelectron (XP), Raman, FT‐IR and UV‐visible spectroscopy. More significantly, the combined results from morphological and structural studies show the formation of a few layers of graphene with effective large‐scale functionalization by tyramine. As a metal‐free electrocatalyst, the as‐synthesized T‐GO shown good electrocatalytic activity towards reduction of H2O2 with a sensitivity of 0.105 mM/cm2 confirmed by combined results from cyclic voltammetric (CV) and linear sweep voltammetric (LSV), and amperometric (i–t) measurements. The lower onset potential (−0.23 mV vs SCE), lower detection limit, wider concentration range (10 mM to 60 mM) with higher electrochemical current and potential stability demonstrated the potential of our non‐enzymatic and cost‐effective T‐GO based electrocatalytic system towards reduction of hydrogen peroxide.

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Heterojunction‐Assisted Co₃S₄@Co₃O₄ Core–Shell Octahedrons for Supercapacitors and Both Oxygen and Carbon Dioxide Reduction Reactions

Yan

Chen

et al. 2017

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Expedition of electron transfer efficiency and optimization of surface reactant adsorption products desorption processes are two main challenges for developing non-noble catalysts in the oxygen reduction reaction (ORR) and CO reduction reaction (CRR). A heterojunction prototype on Co S @Co O core-shell octahedron structure is established via hydrothermal lattice anion exchange protocol to implement the electroreduction of oxygen and carbon dioxide with high performance. The synergistic bifunctional catalyst consists of p-type Co O core and n-type Co S shell, which afford high surface electron density along with high capacitance without sacrificing mechanical robustness. A four electron ORR process, identical to the Pt catalyzed ORR, is validated using the core-shell octahedron catalyst. The synergistic interaction between cobalt sulfide and cobalt oxide bicatalyst reduces the activation energy to convert CO into adsorbed intermediates and hereby enables CRR to run at a low overpotential, with formate as the highly selective main product at a high faraday efficiency of 85.3%. The remarkable performance can be ascribed to the synergistic coupling effect of the structured co-catalysts; heterojunction structure expedites the electron transfer efficiency and optimizes surface reactant adsorption product desorption processes, which also provide theoretical and pragmatic guideline for catalyst development and mechanism explorations.

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Preparation of Mesoporous Dysprosium Oxide for Dynamic Hydrogen Peroxide Detection without Enzymes

Cited by 8 publications

References 33 publications

Recent Advances in DNA Nanotechnology‐Based Sensing Platforms for Rapid Virus Detection

Recent Advances in DNA Nanotechnology‐Based Sensing Platforms for Rapid Virus Detection

Tyramine Functionalized Graphene: Metal‐Free Electrochemical Non‐Enzymatic Biosensing of Hydrogen Peroxide

Heterojunction‐Assisted Co₃S₄@Co₃O₄ Core–Shell Octahedrons for Supercapacitors and Both Oxygen and Carbon Dioxide Reduction Reactions

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Preparation of Mesoporous Dysprosium Oxide for Dynamic Hydrogen Peroxide Detection without Enzymes

Cited by 8 publications

References 33 publications

Recent Advances in DNA Nanotechnology‐Based Sensing Platforms for Rapid Virus Detection

Recent Advances in DNA Nanotechnology‐Based Sensing Platforms for Rapid Virus Detection

Tyramine Functionalized Graphene: Metal‐Free Electrochemical Non‐Enzymatic Biosensing of Hydrogen Peroxide

Heterojunction‐Assisted Co3S4@Co3O4 Core–Shell Octahedrons for Supercapacitors and Both Oxygen and Carbon Dioxide Reduction Reactions

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Heterojunction‐Assisted Co₃S₄@Co₃O₄ Core–Shell Octahedrons for Supercapacitors and Both Oxygen and Carbon Dioxide Reduction Reactions