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Industrial Crops and Products· 2026Q1

Lotus leaf hydrophobic surface-mediated fabrication of stretchable, self-healing MnO2 microcapsules for controlled release of chlorine dioxide

Mei Lin, Zeng Yanju, Xiao Wu

Short summary

Researchers fabricated self-healing, stretchable MnO2 microcapsules using a lotus leaf's superhydrophobic interface, enabling controlled release of chlorine dioxide (ClO2) with 72.9% antibacterial inhibition against Bacillus anthracis after 7 days.

AI-generated from the title and abstract; the full text is not read.

Key points

  • MnO2 microcapsules synthesized via a gas-liquid-solid reaction on a lotus leaf-inspired interface.
  • Microcapsule shell confirmed as crystalline ε-MnO2 with a heterogeneous bilayer network architecture.
  • Demonstrated reversible stretchable and self-healing capabilities under mild thermal stimulation.
  • Achieved controlled, sustained release of chlorine dioxide (ClO2).
  • Showed 72.9% growth inhibition of Bacillus anthracis after 7 days.

AI-generated from the title and abstract; the full text is not read.

Abstract

Based on a bio-derived superhydrophobic interface of lotus leaf, this study reported in-situ synthesis of ε-MnO 2 microcapsules via a gas-liquid-solid three-phase interfacial reaction. X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and selected-area electron diffraction (SAED), unambiguously confirmed that the microcapsule shell consisted exclusively of crystalline ε-MnO 2 (JCPDS No. 30–0820) and exhibited a well-defined heterogeneous bilayer network architecture. The inner layer comprised a resilient, entangled nanowire network formed through gas-liquid interface-directed self-assembly, while the outer layer featured densely packed, raft-like MnO 2 nanoplates. Under mild thermal stimulation, MnO 2 microcapsules demonstrated reversible stretchable and self-healing capability. Encapsulated manganese chlorate (Mn(ClO 3 ) 2 ) underwent interfacially confined decomposition at the solid-liquid interface, enabling controlled, and sustained release of chlorine dioxide (ClO 2 ). Antibacterial assays against Bacillus anthracis revealed a time-dependent inhibitory effect, achieving 72.9% growth inhibition after 7 days of exposure.

The authors' abstract, as published at the source. Industrial Crops and Products, 2026 · DOI ↗

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Field: Surfaces, Coatings and Films

Surfaces, Coatings and FilmsMaterials Science