Binding of single-strand oligonucleotides with ten adenine bases to single-crystal Au(111) through hexamethylene thiol has been studied by cyclic voltammetry and in situ scanning tunneling microscopy. The high surface coverage is in keeping with adsorption in the upright position. Strongly negative potentials give long-range ordered-adsorbate domains, which are characterized to single-molecule resolution (see picture).
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Wackerbarth et al. (2003) studied this question.
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