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000138442 1001_ $$0P:(DE-HGF)0$$aHitzbleck, Martina$$b0
000138442 245__ $$aFunctional peptides for capacitative detection of Ca 2+ ions54
000138442 260__ $$aWeinheim$$bWiley-VCH$$c2013
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000138442 520__ $$aMolecular recognition is the key feature of bioinspired sensor applications. A profound understanding of recognitive binding events is crucial for the design of highly specific and effective binding molecules. In this paper a series of simple to complex oligopeptides, derived from the Ca2+ chelator ethylenediaminetetraacetic acid (EDTA) and the Ca2+ binding protein calmodulin, were investigated. It was shown, that specifically designed oligopeptides can fulfil protein-like recognition functions but are much easier to immobilize and enable high functional integration. Impedance spectroscopy (IS) could be used to detect binding of Ca2+ to different peptides because the double layer capacitance is highly sensitive to changes in the morphology and dielectric properties of adsorbate layers. Finally, the designed functional oligopeptides were implemented in silicon nanowire field effect transistors (SiNW FETs) as a proof of concept for future problem-optimized molecules in sensor devices.
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000138442 536__ $$0G:(DE-HGF)POF2-453$$a453 - Physics of the Cell (POF2-453)$$cPOF2-453$$fPOF II$$x1
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000138442 7001_ $$0P:(DE-HGF)0$$aVu, Xuan Thang$$b1
000138442 7001_ $$0P:(DE-HGF)0$$aIngebrandt, Sven$$b2
000138442 7001_ $$0P:(DE-Juel1)128713$$aOffenhäusser, Andreas$$b3
000138442 7001_ $$0P:(DE-Juel1)128707$$aMayer, Dirk$$b4$$eCorresponding author
000138442 773__ $$0PERI:(DE-600)1481091-8$$a10.1002/pssa.201200886$$gVol. 210, no. 5, p. 1030 - 1037$$n5$$p1030 - 1037$$tPhysica status solidi / A$$v210$$x1862-6300$$y2013
000138442 8564_ $$uhttps://juser.fz-juelich.de/record/138442/files/FZJ-2013-04573_PV.pdf$$yRestricted$$zPublished final document.
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