Work

Co-motion of catalytic tubes and host droplets on superhydrophobic surfaces

Year: 2025

Type: article

Abstract: chemical garden self-assembly and catalyze the decomposition of the peroxide to water and oxygen gas. The resulting droplet-tube cell exhibits diverse dynamic behaviors, including propeller-like spinning, orbital rotation, and long-range translational jumps, driven by the asymmetric growth and bursting of internally generated gas bubbles. These motions are sensitive to hydrogen peroxide concentration, which governs both the internal gas production rate and the system's active lifetime. This system offers a simple yet versatile platform for exploring confined catalysis, emergent motility, and the design of soft, fuel-containing active materials.

Source: Soft Matter

DOI: 10.1039/d5sm00576k

Authors: Amrutha S. V., Oliver Steinbock

Institution: Florida State University

Language: English

Topic: Surface Modification and Superhydrophobicity

Subfield: Surfaces, Coatings and Films

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Aeronautics and Space Administration, Nuclear Safety and Security Commission

Award: G7729748020