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Related Concept Videos

Peroxisomes01:24

Peroxisomes

Peroxisomes are specialized organelles present in fungi, plant, and animal cells. It can vary in number, size, morphology, and activity depending on the type of tissue and the nutritional state of the cell. For example, cells with active lipid metabolism, such as adipocytes, neurons, and hepatocytes, have more peroxisomes than other cells in the body. Besides their primary role in breaking down complex organic molecules, peroxisomes can also synthesize specific macromolecules and participate in...

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Bridging the Bio-Electronic Interface with Biofabrication
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Molecularly Engineered 2D Xene Heterostructures With Implanted Peroxidase-Like Activity for Mimicking Enzyme

Yiming Lei1, Xavier Sala1, Jordi García-Antón1

  • 1Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès (Barcelona), Spain.

Small Methods
|May 14, 2026
PubMed
Summary

Researchers developed a new 2D nanozyme by modifying allyl germanane with a cobalt catalyst. This material enables sensitive detection of hydrogen peroxide (H2O2) in biological settings, paving the way for advanced catalytic applications.

Keywords:
2D nanozymeelectropolymerizationgermanenemolecular catalystporphyrin

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Catalysis

Background:

  • Enzymes are highly efficient natural catalysts, inspiring the development of artificial enzyme mimics.
  • Two-dimensional (2D) nanozymes, including Xene materials, offer high surface area and cost-effectiveness for catalysis.
  • Molecular engineering provides a route to imbue nanomaterials with specific catalytic functions.

Purpose of the Study:

  • To engineer enzymatic-like activity into the 2D Xene material, allyl germanane (2D-Ge).
  • To create a novel 2D-Ge@Co heterostructure for sensitive detection of hydrogen peroxide (H2O2).
  • To demonstrate the practical application of the developed nanozyme in biologically relevant environments.

Main Methods:

  • Molecular engineering of allyl germanane (2D-Ge) using electropolymerization.
  • Immobilization of a Cobalt(II)-based molecular catalyst onto the 2D-Ge surface.
  • Electrochemical characterization for hydrogen peroxide detection.

Main Results:

  • The 2D-Ge@Co heterostructure demonstrated sensitive, selective, and robust electrochemical detection of H2O2.
  • A micromolar detection limit for H2O2 was achieved under physiological conditions.
  • Successful in situ monitoring of H2O2 generation during an enzymatic reaction confirmed compatibility with biological environments.

Conclusions:

  • A general strategy for molecular programming of 2D Xenes with tailored molecular catalysts was established.
  • The developed 2D nanozyme offers a promising platform for task-specific catalytic applications.
  • This approach opens new avenues for designing customized nanozymes for diverse applications.