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Electrochemically C...
Electrochemically Controlled Hydrogels with Electrotunable Permeability and Uniaxial Actuation
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- Benselfelt, Tobias (författare)
- KTH,Fiberteknologi,Department of Fibre and Polymer Technology School of Engineering Sciences in Chemistry Biotechnology and Health KTH Royal Institute of Technology Stockholm 100 44 Sweden,KTH Royal Inst Technol, Sweden
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- Shakya, Jyoti (författare)
- KTH,Fiberteknologi,Department of Fibre and Polymer Technology School of Engineering Sciences in Chemistry Biotechnology and Health KTH Royal Institute of Technology Stockholm 100 44 Sweden,KTH Royal Inst Technol, Sweden
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- Rothemund, Philipp (författare)
- Robotic Materials Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany,Max Planck Inst Intelligent Syst, Germany
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- Lindström, Stefan B, 1974- (författare)
- Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten
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- Piper, Andrew (författare)
- KTH,Fiberteknologi,Department of Fibre and Polymer Technology School of Engineering Sciences in Chemistry Biotechnology and Health KTH Royal Institute of Technology Stockholm 100 44 Sweden,KTH Royal Inst Technol, Sweden
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- Winkler, Thomas E. (författare)
- Institute of Microtechnology & Center of Pharmaceutical Engineering Technische Universität Braunschweig 38106 Braunschweig Germany,Tech Univ Carolo Wilhelmina Braunschweig, Germany; Tech Univ Carolo Wilhelmina Braunschweig, Germany
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- Hajian, Alireza, 1986- (författare)
- KTH,Fiberteknologi,Department of Fibre and Polymer Technology School of Engineering Sciences in Chemistry Biotechnology and Health KTH Royal Institute of Technology Stockholm 100 44 Sweden,KTH Royal Inst Technol, Sweden
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- Wågberg, Lars, 1956- (författare)
- KTH,Fiberteknologi,Department of Fibre and Polymer Technology School of Engineering Sciences in Chemistry Biotechnology and Health KTH Royal Institute of Technology Stockholm 100 44 Sweden,KTH Royal Inst Technol, Sweden
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- Keplinger, Christoph (författare)
- Robotic Materials Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany; Paul M. Rady Department of Mechanical Engineering, University of Colorado, Boulder, CO, 80309, USA; Materials Science and Engineering Program, University of Colorado, Boulder, CO, 80309, USA,Max Planck Inst Intelligent Syst, Germany; Univ Colorado, CO 80309 USA; Univ Colorado, CO 80309 USA
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- Hamedi, Mahiar (författare)
- KTH,Fiberteknologi,Department of Fibre and Polymer Technology School of Engineering Sciences in Chemistry Biotechnology and Health KTH Royal Institute of Technology Stockholm 100 44 Sweden,KTH Royal Inst Technol, Sweden
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(creator_code:org_t)
- Wiley, 2023
- 2023
- Engelska.
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Ingår i: Advanced Materials. - : Wiley. - 0935-9648 .- 1521-4095. ; 35:45
- Relaterad länk:
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https://doi.org/10.1...
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The unique properties of hydrogels enable the design of life-like soft intelligent systems. However, stimuli-responsive hydrogels still suffer from limited actuation control. Direct electronic control of electronically conductive hydrogels can solve this challenge and allow direct integration with modern electronic systems. An electrochemically controlled nanowire composite hydrogel with high in-plane conductivity that stimulates a uniaxial electrochemical osmotic expansion is demonstrated. This materials system allows precisely controlled shape-morphing at only −1 V, where capacitive charging of the hydrogel bulk leads to a large uniaxial expansion of up to 300%, caused by the ingress of ≈700 water molecules per electron–ion pair. The material retains its state when turned off, which is ideal for electrotunable membranes as the inherent coupling between the expansion and mesoporosity enables electronic control of permeability for adaptive separation, fractionation, and distribution. Used as electrochemical osmotic hydrogel actuators, they achieve an electroactive pressure of up to 0.7 MPa (1.4 MPa vs dry) and a work density of ≈150 kJ m−3 (2 MJ m−3 vs dry). This new materials system paves the way to integrate actuation, sensing, and controlled permeation into advanced soft intelligent systems.
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- electrochemical actuation
- electronic actuators
- hydrogels
- nanowires
- osmotic pressure
- tunable membranes
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Benselfelt, Tobi ...
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Shakya, Jyoti
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Rothemund, Phili ...
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Lindström, Stefa ...
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Piper, Andrew
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Winkler, Thomas ...
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Hajian, Alireza, ...
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Wågberg, Lars, 1 ...
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Keplinger, Chris ...
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Hamedi, Mahiar
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Polymerkemi
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Elektroteknik oc ...
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och Annan elektrotek ...
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Advanced Materia ...
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