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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la3012603
|2 doi
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|a pubmed24n0727.xml
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|a (DE-627)NLM218229941
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|a (NLM)22650232
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Dou, Yibo
|e verfasserin
|4 aut
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|a Temperature-controlled electrochemical switch based on layered double hydroxide/poly(N-isopropylacrylamide) ultrathin films fabricated via layer-by-layer assembly
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|c 2012
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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
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|2 rdacarrier
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|a Date Completed 31.10.2012
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|a Date Revised 20.11.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a In this paper we report the fabrication of layered double hydroxide (LDH) nanoparticles/poly(N-isopropylacrylamide) (pNIPAM) ultrathin films (UTFs) via the layer-by-layer assembly technique, and their switchable electrocatalytic performance in response to temperature stimuli was demonstrated. X-ray diffraction and UV-vis absorption spectroscopy indicate a periodic layered structure with uniform and regular growth of the (LDH/pNIPAM)(n) UTFs; an interaction based on hydrogen bonding between LDH nanoparticles and pNIPAM was confirmed by X-ray-photoelectron spectroscopy and Fourier transform infrared spectroscopy. Temperature-triggered cyclic voltammetry and electrochemical impedance spectroscopy switch for the UTFs was obtained between 20 and 40 °C, accompanied by reversible changes in surface topography and film thickness revealed by atomic force microscopy and ellipsometry, respectively. The electrochemical on-off property of the temperature-controlled (LDH/pNIPAM)(n) UTFs originates from the contraction-expansion configuration of pNIPAM with low-high electrochemical impedance. In addition, a switchable electrocatalytic behavior of the (LDH/pNIPAM)(n) UTFs toward the oxidation of glucose was observed, resulting from the temperature-controlled charge transfer rate. Therefore, this work provides a facile approach for the design and fabrication of a well-ordered command interface with a temperature-sensitive property, which can be potentially applied in electrochemical sensors and switching
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Acrylamides
|2 NLM
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|a Acrylic Resins
|2 NLM
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|a Hydroxides
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|a Polymers
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|a Tin Compounds
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|a poly-N-isopropylacrylamide
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|a 25189-55-3
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|a indium tin oxide
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|a 71243-84-0
|2 NLM
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|a Han, Jingbin
|e verfasserin
|4 aut
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|a Wang, Tengli
|e verfasserin
|4 aut
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|a Wei, Min
|e verfasserin
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|a Evans, David G
|e verfasserin
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|a Duan, Xue
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 28(2012), 25 vom: 26. Juni, Seite 9535-42
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:28
|g year:2012
|g number:25
|g day:26
|g month:06
|g pages:9535-42
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