Sensitivity Enhancement of Surface‐Plasmon Resonance Imaging by Nanoarrayed Organothiols

Crystalline organothiol nanoarrays improve the detection sensitivity of surface-plasmon resonance (SPR) by a factor of five in comparison to noncrystalline nanopatterns and uniformly carboxylic surfaces. SPR images taken during the detection of an immunoreaction show a brighter color in the nanoarray area of the surface, which is the result of higher detection sensitivity. Sensor surfaces with nanoarrays may therefore provide future applications for the immobilization of biomolecules on biosensing surfaces. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2008/adma200702736_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.