Cover Picture: Electrosurface Phenomena at Polymer Films for Biosensor Applications (ChemPhysChem 5/2003)

Autor:	Günter Gauglitz, Oliver Birkert, Ralf Zimmermann, Carsten Werner
Rok vydání:	2003
Předmět:	chemistry.chemical_classification Materials science Nanotechnology Polymer Atomic and Molecular Physics and Optics Streaming current Electrokinetic phenomena Surface conductivity Planar chemistry Zeta potential Physical and Theoretical Chemistry Thin film Biosensor
Zdroj:	ChemPhysChem. 4:409-409
ISSN:	1439-4235
DOI:	10.1002/cphc.200390075
Popis:	The cover picture summarizes the principle of the Microslit Electrokinetic Set-Up, which has been applied for the combined determination of zeta potential and surface conductivity of polymer films for biosensor applications. The method is based on streaming potential and streaming current measurements across rectangular channels formed by two planar sample carriers (20 mm×10 mm) at varied distances in the range of 1 to 60 μm. Combined determination of zeta potential and surface conductivity was advantageous for the analysis of interfacial charge distributions at swelling and reorganizing solid surfaces. The high sensitivity of the surface conductivity for structural variations of layered substrates may even allow the use of this parameter for detection in future biosensors. Find out more in the article by Zimmermann et al. on pages 509–514.
Databáze:	OpenAIRE
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