2018/06/19 by Claire Fullarton, Thomas C. Draper, Neil Phillips +3 · 39 citations
Agricultural and Biological Sciences · Chemistry · Computer Science · Materials Science · Physics and Astronomy · #Belousov–Zhabotinsky reaction #Chemical engineering #Chemistry #Coating #Composite material #Diffusion #Excitation #Materials science #Micro and Nano Robotics #Nanotechnology #Physical chemistry #Physics #Pickering emulsions and particle stabilization #Polyethylene #Proteins in Food Systems #Thermodynamics #cs.ET
paper · pdf · open access · doi:10.1088/2515-7639/aaed4c
published in Journal of Physics Materials 2(1), 015005 (IOP Publishing)
arxiv created 2018/06/19 · openalex publication_date 2018/11/01 · arxiv updated 2019/01/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract In Belousov–Zhabotinsky (BZ) type reactions, chemical oxidation waves can be exploited to produce reaction-diffusion processors. This paper reports on a new method of encapsulating BZ solution in a powder coating of either polyethylene (PE) or polytetrafluoroethylene (PTFE), to produce BZ liquid marbles (LMs). BZ LMs have solid–liquid interfaces compared to previously reported encapsulation systems, BZ emulsions and BZ vesicles. Oscillation studies on individual LMs established PE-coated LMs were easier to prepare and more robust than PTFE-coated LMs. Therefore, this coating was used to study BZ LMs positioned in ordered and disordered arrays. Sporadic transfer of excitation waves was observed between LMs in close proximity to each other. These results lay the foundations for future studies on information transmission and processing arrays of BZ LMs. Future work aims to elucidate the effect of other physical stimuli on the dynamics of chemical excitation waves within these systems.