A review with 69 refs. The different approaches in which self-assembled monolayers (SAMs) were applied in electroanal. chem. are reviewed. Three principal concepts were used and can be categorized according to the mechanism of attachment of the monolayer to the electrode. These include the formation of covalent bonds between reactive org. mols., such as chlorosilanes, with activated surfaces, the formation of lipid and bilayer lipid membranes that self-assemble on conductive surfaces and the adsorption of functionalized alkanes, e.g., alkanethiols, on well ordered surfaces. Systems for detecting inorg., org. and biol. species are described and conclusions are drawn. [on SciFinder(R)]

A review with 23 refs. The scanning electrochem. microscope (SECM) is one of the scanning probe techniques that were developed following the introduction of the scanning tunneling microscope. The approaches that were used to modify surfaces with lateral resoln. using the SECM are presented and discussed. These approaches made it possible to drive a variety of microelectrochem. reactions on surfaces, as well as to study the mechanism of these processes due to the unique advantages that the SECM offers. [on SciFinder(R)]

A method of scanning electrochem. microscope (SECM) was used to analyze the kinetics of the charge transfer at the liq./liq. interface. The method overcomes a limitation requiring a sepn. of ion transfer process from the charge transfer process. Few exptl. results involving iridium and iron complexes are discussed. [on SciFinder(R)]

The adsorption of L-cysteine on Au(111) from a perchlorate soln. was studied by in-situ scanning tunneling microscopy. The potential-induced adsorption of the thiols lifts the reconstruction of Au(111) and at more pos. potentials L-cysteine adopts a definite adlayer structure. The potential-induced desorption of the adlayer does not cause the reconstruction to reappear but instead leaves a roughened surface with a large no. of monoat. high gold islands and monoat. deep holes. [on SciFinder(R)]

The formation and organization of self-assembled monolayers of alkanethiols and ω-mercaptocarboxylic acids on Hg surfaces were studied. The organization process was examd. in-situ and ex-situ by cyclic voltammetry. Charging current measurements as well as electron transfer expts. with Ru(NH3)63+/2+ indicate that the adsorption of homologous alkanethiols and ω-mercaptocarboxylic acids on Hg is followed by the formation of a densely packed array. [on SciFinder(R)]