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Spatially Controlled Chemical Reactions At The Molecular Level Using Atomic Force Microscopy Katerina Busuttil, Claire Bagshaw, Karl S Coleman, Jason J Davis
Inorganic Chemistry Department, Central Research Laboratory, 12
Mansfield Road, Oxford, OX1 3TA.
Atomic force microscope (AFM) probes can be used as tools to initiate chemical and physical changes upon the surfaces with which they come into proximity. By forming self-assembled monolayers (SAMs) with functionalised terminal groups, and through the controlled modification of atomic force microscope probes, self-assembled monolayers can be altered with a high degree of spatial resolution and specificity to obtain chemically distinct areas. A variety of reagents have been assembled and characterised in well-defined SAMs. By scanning suitably designed proximal probes across these monolayers under carefully controlled conditions which include temperature and pressure, chemical reactions were carried out. The results of various spatially-confined reactions initiated with reagent/catalytic AFM probes including those modified with catalytic nanoparticles will be presented.
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Presented at the
International Congress of Nanotechnology, November 7-10, 2004
San Francisco, USA
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