Conductive tubes: Self-assembled nanotubes of a bacteriochlorophyll derivative are reminiscent of natural chlorosomal light-harvesting assemblies. After deposition on a substrate that consists of a non-conductive silicon oxide surface (see picture, brown) and contacting the chlorin nanowires to a conductive polymer (yellow), they show exceptional charge-transport properties.

Leitende Röhren: Selbstgeordnete Nanoröhren eines Bakteriochlorophylls erinnern an natürliche chlorosomale lichtsammelnde Verbände. Abgeschieden auf einem nichtleitenden Siliciumoxid‐Wafer als Substrat (siehe Bild, braun) und nach Kontaktierung mit einem leitenden Polymer (gelb) zeigen diese Chlorin‐Nanoröhren außergewöhnliche Ladungstransporteigenschaften.

Herein we present a study on nonspecific binding of proteins at highly dense packed hydrophobic polystyrene brushes. In this context, an atomic force microscopy tip was functionalized with concanavalin A to perform single-molecule force spectroscopy measurements on polystyrene brushes with thicknesses of 10 and 60 nm, respectively. Polystyrene brushes with thickness of 10 nm show an almost two times stronger protein adsorption than brushes with a thickness of 60 nm: 72 pN for the thinner and 38 pN for the thicker layer, which is in qualitative agreement with protein adsorption studies conducted macroscopically by fluorescence microscopy.