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Anionic clay-based nanozymes: Interfacial regulation, structural design and functional applications.

Adél Szerlauth1, Zsuzsanna D Kónya2, Kaori Sugihara3

  • 1Institute of Condensed Matter and Nanosciences - Bio and Soft Matter, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium.

Advances in Colloid and Interface Science
|February 17, 2026
PubMed
Summary
This summary is machine-generated.

Layered double hydroxides (LDHs) are versatile anionic clays that mimic enzymes, acting as nanozymes. Their unique structure and tunable properties enable applications in medicine and environmental sensing.

Keywords:
BiocatalysisColloidEnzyme mimicHydrotalciteLayered double hydroxideType1 and type 2 Nanozymes

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Area of Science:

  • Colloid Science
  • Materials Science
  • Biocatalysis

Background:

  • Anionic clays, also known as layered double hydroxides (LDHs) or hydrotalcites, are 2D colloidal materials.
  • LDHs exhibit tunable composition, high surface charge density, and interfacial features.
  • These properties enable controlled redox and biocatalytic activities, making them suitable for nanozyme design.

Purpose of the Study:

  • To review the structural chemistry of LDHs and their biocatalytic performance.
  • To categorize LDH nanozymes into Type 1 (immobilized biomolecules) and Type 2 (intrinsic redox activity).
  • To highlight applications and future directions in LDH-based nanozyme research.

Main Methods:

  • Integration of structural chemistry and biocatalytic performance data.
  • Classification of LDH nanozymes based on immobilization or intrinsic activity.
  • Analysis of interface regulation, ion exchange, and nanoscale confinement effects.

Main Results:

  • Two main categories of LDH nanozymes (Type 1 and Type 2) were identified.
  • Interplay of interface regulation, ion exchange, and confinement dictates biocatalytic turnover.
  • LDH nanozymes show promise in antioxidant, therapeutic, and environmental sensing applications.

Conclusions:

  • LDH-based nanozymes represent a transformation of traditional clays into adaptive, multifunctional materials.
  • Future research directions include AI-guided discovery, multi-nanozyme cocktails, and microfluidic synthesis.
  • LDH nanozymes are at the forefront of colloid science, merging surface chemistry with bioinspired catalysis.