Fabrication and Visualization of Metal-Ion Patterns on Glass by Dip-Pen Nanolithography

Basabe-Desmonts, Lourdes and Wu, Chien-Ching and Werf van der, Kees O. and Peter, Mária and Bennink, Martin and Otto, Cees and Velders, Aldrik H. and Reinhoudt, David N. and Subramaniam, Vinod and Crego-Calama, Mercedes (2008) Fabrication and Visualization of Metal-Ion Patterns on Glass by Dip-Pen Nanolithography. ChemPhysChem, 9 (12). pp. 1680-1687. ISSN 1439-4235

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Abstract:	Fluorescent self-assembled monolayers (SAMs) are used as dip-pen nanolithography (DPN) substrates for the fabrication of patterns of Ca2+ and Cu2+ ions. The driving force for the transfer of these ions from an atomic force microscopy (AFM) tip to the surface is their complexation to organic ligands on the monolayer. By means of fluorescent surfaces, the patterns can be visualized under a fluorescence microscope. We use a custom-built atomic force fluorescence microscope (AFFM), a combination of atomic force and confocal fluorescence microscopes, to deposit the metal ions onto the sensing SAMs by DPN and to subsequently visualize modulations of fluorescence intensity in a sequential write-read mode.
Item Type:	Article
Copyright:	© 2008 Wiley InterScience
Faculty:	Science and Technology (TNW)
Research Group:	Nano-Biophysics (NBP) Medical Cell BioPhysics (MCBP) Supramolecular Chemistry and Technology (SMCT)
Link to this item:	http://purl.utwente.nl/publications/72343
Official URL:	http://dx.doi.org/10.1002/cphc.200700853
Dataset URL:	http://www.wiley-vch.de/contents/jc_2267/2008/f700853_s.pdf
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