| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Faul, Charl F. J.
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Soft alchemycitations
- 2024Soft alchemy:a comprehensive guide to chemical reactions for pneumatic soft actuationcitations
- 2024Triphenylamine-Based Conjugated Microporous Polymers as the Next Generation Organic Cathode Materials
- 2023Electric Field-Driven Dielectrophoretic Elastomer Actuatorscitations
- 2021Efficient and Controlled Seeded Growth of Poly(3-hexylthiophene) Block Copolymer Nanofibers through Suppression of Homogeneous Nucleationcitations
- 2017Uniform “Patchy” Platelets by Seeded Heteroepitaxial Growth of Crystallizable Polymer Blends in Two Dimensionscitations
- 2016Influence of solvent polarity on the structure of drop-cast electroactive tetra(aniline)-surfactant thin filmscitations
- 2016Influence of solvent polarity on the structure of drop-cast electroactive tetra(aniline)-surfactant thin filmscitations
- 2016Biomimetic photo-actuationcitations
- 2015Self-assembly of a functional oligo(aniline)-based amphiphile into helical conductive nanowirescitations
- 2015Modelling and analysis of pH responsive hydrogels for the development of biomimetic photo-actuating structurescitations
- 2009Solid state nanofibers based on self-assemblies:from cleaving from self-assemblies to multilevel hierarchical constructscitations
Places of action
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document
Modelling and analysis of pH responsive hydrogels for the development of biomimetic photo-actuating structures
Abstract
<p>Photo-actuating structures inspired by the chemical sensing and signal transmission observed in sun-tracking leaves have recently been proposed by Dicker et al. The proposed light tracking structures are complex, multicomponent material systems, principally composed of a reversible photoacid or base, combined with a pH responsive hydrogel actuator. New modelling and characterization approaches for pH responsive hydrogels are presented in order to facilitate the development of the proposed structures. The model employs Donnan equilibrium for the prediction of hydrogel swelling in systems where the pH change is a variable resulting from the equilibrium interaction of all free and fixed (hydrogel) species. The model allows for the fast analysis of a variety of combinations of material parameters, allowing for the design space for the proposed photo-actuating structures to be quickly established. In addition, experimental examination of the swelling of a polyether-based polyurethane and poly(acrylic acid) interpenetrating network hydrogel is presented. The experiment involves simultaneously performing a titration of the hydrogel, and undertaking digital image correlation (DIC) to determine the hydrogel's state of swelling. DIC allows for the recording of the hydrogel's state of swelling with previously unattained levels of resolution. Experimental results provide both model material properties, and a means for model validation.</p>