Journal
SOFT MATTER
Volume 18, Issue 3, Pages 482-486Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1sm01635k
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Funding
- West Light Talent Program of the Chinese Academy of Sciences
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The study demonstrates that the oscillation period of a large anisotropic SOG increases with a decrease in cross-linking density, affecting the regularity of mechanical oscillations. Interestingly, disrupted mechanical oscillations tend to become regular and periodic under the influence of visible light. Investigating the C-M delay at various scales has significant implications for intelligent soft actuators.
The time delay existing between the chemical oscillation and mechanical oscillation (C-M delay) in a self-oscillating gel (SOG) system is observable in previous experimental studies. However, how the C-M delay affects the dynamic behavior of a large anisotropic SOG has not been quantified or reported systematically. In this study, we observed that the oscillation period increases with a decrease in the cross-linking density of the anisotropic SOG, and this determined whether regular mechanical oscillation occurs. Unlike before, the disrupted mechanical oscillations interestingly tend to be regular and periodic under visible light, which is an inhibitor for the B-Z reaction incorporating the Ru complex as a catalyst (Ru-BZ reaction). Moreover, the study of the C-M delay at different scales has far-reaching implications for intelligent soft actuators.
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