ArticleAdvanced materials (Deerfield Beach, Fla.)2021
From Understanding Mechanical Behavior to Curvature Prediction of Humidity-Triggered Bilayer Actuators.
Article in Advanced materials (Deerfield Beach, Fla.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Article
- Dynamic evaporative and radiative cooling for efficient year-round energy savings.Science advances · 2026Article
- Cation-polymer interactions drive water expulsion and deswelling in n-type ladder organic mixed conductors.Nature materials · 2026Article
- Responsive Magnetic Polymer Nanocomposites through Thermal-Induced Structural Reorganization.ACS nano · 2025Article
- Electrostatic Tailoring of Freestanding Polymeric Films for Multifunctional Thermoelectrics, Hydrogels, and Actuators.ACS nano · 2024Article
- Preparation and Antibacterial Properties of Poly (l-Lactic Acid)-Oriented Microporous Materials.Biomolecules · 2024Article
- Functional PDMS Elastomers: Bulk Composites, Surface Engineering, and Precision Fabrication.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Review
- Electrically switchable metallic polymer metasurface device with gel polymer electrolyte.Nanophotonics (Berlin, Germany) · 2023Article
- Article
- On the fundamentals of organic mixed ionic/electronic conductors.Journal of materials chemistry. C · 2023Article
- High Energy and Power Density Peptidoglycan Muscles through Super-Viscous Nanoconfined Water.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
- Article
- Pressure-Perceptive Actuators for Tactile Soft Robots and Visual Logic Devices.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
- Organic Semiconductor Nanotubes for Electrochemical Devices.Advanced functional materials · 2021Article
- Parameter Identification and Validation of Shape-Memory Polymers within the Framework of Finite Strain Viscoelasticity.Materials (Basel, Switzerland) · 2021Article
- From Understanding Mechanical Behavior to Curvature Prediction of Humidity-Triggered Bilayer Actuators.Advanced materials (Deerfield Beach, Fla.) · 2021Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Nature will always be an endless source of bioinspiration for man-made smart materials and multifunctional devices. Impressively, even cutoff leaves from resurrection plants can autonomously and reproducibly change their shape upon humidity changes, which goes along with total recovery of their mechanical properties after being completely dried. In this work, simple bilayers are presented as autonomously moving, humidity-triggered bending actuators. The bilayers-showing reproducible bending behavior with reversible kinematics and multiway behavior-are studied in terms of their mechanical behavior upon humidity changes. The active layer consists of a highly conducting polymer film based on poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) with poly(dimethylsiloxane) (PDMS) as passive layer. The response to humidity is explored with dynamic mechanical thermal analysis and quartz crystal microbalance measurements. Introduction of a composite beam model allows to predict the curvature of the actuators with input from the rheological measurements. It is clearly demonstrated that volumetric strain and Young's modulus, both heavily influenced by the water uptake, dominate the bending behavior and therefore the curvature of the actuators. This loop of rheological characterization coupled with an analytical model allows to predict curvatures of in principle any complex geometry and material combination for moving parts in soft robotics.
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