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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c00315
|2 doi
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|a pubmed24n1134.xml
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|a (DE-627)NLM340290358
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|a (NLM)35500271
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Ganesan, Manikandan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Bidirectional Actuation of Silk Fibroin Films
|b Role of Water and Alcohol Vapors
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 19.05.2022
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|a Date Revised 20.07.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Three-dimensional (3D) shape morphism observed in nature inspires the development of stimuli-responsive soft actuators. Vapor-responsive actuators are promising among the different stimuli-responsive materials due to their capability to produce macroscale movements in response to a minuscule amount of specific chemical vapor. Here, we report unusual multiple vapor-responsive bidirectional macroscale actuation behaviors of single-layer regenerated silk fibroin films. The vapor-responsive silk fibroin actuator exhibits antagonistic actuation characteristics in a reversible manner to both water and ethanol vapors. For instance, it produces an upward bending in the presence of water vapor and downward bending in ethanol vapor, which demonstrates the chemical vapor-specific actuation. However, the actuation characteristics remain largely invariant upon changing the polarity of alcohol molecules. The silk fibroin actuators effectively utilize the vapor-induced minuscule expansion and contraction of the film surface to produce large-scale actuation, which is fully reversible. The intrinsic water content of the films and the vapor pressure of the stimulants are exploited to control the actuation performance. Further, we demonstrated the 3D shape morphing ability of the actuator by generating an undulating wavelike motion via preprogrammed water and ethanol vapor exposure conditions. The change in the actuation direction is instantaneous, which ensures the sensitivity and rapid response of the fabricated actuators
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Steam
|2 NLM
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|a Ethanol
|2 NLM
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| 650 |
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|a 3K9958V90M
|2 NLM
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| 650 |
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|a Fibroins
|2 NLM
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|a 9007-76-5
|2 NLM
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| 700 |
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|a Kumar, Ravi
|e verfasserin
|4 aut
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| 700 |
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|a Satapathy, Dillip K
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 38(2022), 19 vom: 17. Mai, Seite 6066-6075
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:38
|g year:2022
|g number:19
|g day:17
|g month:05
|g pages:6066-6075
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|u http://dx.doi.org/10.1021/acs.langmuir.2c00315
|3 Volltext
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