physica status solidi (a)

Cover image for Vol. 212 Issue 1

Editor: Stefan Hildebrandt (Editor-in-Chief), Sabine Bahrs (Deputy Editor)

Online ISSN: 1862-6319

Associated Title(s): physica status solidi (b), physica status solidi (c), physica status solidi (RRL) - Rapid Research Letters

207_04/2010Front Cover (Phys. Status Solidi A 4/2010)

The Editor's Choice article by Siqueira Jr. et al. (p. 781) discusses the morphological effect of layer-by-layer films containing singlewalled carbon nanotubes (SWNTs) on the efficiency of field-effect devices, including a capacitive electrolyte–insulator–semiconductor sensor and a light-addressable potentiometric sensor device. The nanostructured film was assembled with alternating layers of negatively charged functionalized SWNTs with the positively charged polyamidoamine (PAMAM) dendrimer. The biosensing unit was made by immobilizing the enzyme penicillinase atop the film, as shown in the cover illustration. The influence of the SWNT nanostructured film on the enzyme immobilization and on the biosensor properties for detecting penicillin G is explored. New concepts are developed for the molecular control of biosensing properties in a platform combining hybrid organic–inorganic films with siliconbased technology. The article was chosen by the Guest Editors of EnFi 2009 for the cover of this special issue (see pages 777–934).

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