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In this report, we demonstrate that quartz nanopipettes modified with an imidazole-terminated silane respond to metal ions ([Co.sup.2+]) in solution. The response of nanopipettes is evaluated through examination of the ion current rectification ratio. When nanopipettes are cycled between solutions of different pH, adsorbed [Co.sup.2+] can be released from the nanopipette surface, to regenerate binding sites of the nanopipette. These results demonstrate that rectification-based sensing strategies for nanopore sensors can benefit from selection of recognition elements with intermediate binding affinities, such that reversible responses can be attained. 10.1021/ac102619j

Research has been conducted on stereoregular cyclic polysilanols. The preparation of these compounds at low temperatures via the reaction of cagelike oligophenylmetallasiloxanes with hydrochloric acid's dilute solutions and their characterization are described.

Research has been conducted on Bu (sub)3 Sn radical-induced reaction of o-iodoallylsilanes and o-iodobenzylvinylsilanes. Results demonstrate that this reaction leads to cyclic compounds.

Research has been conducted on tri- and difluoromethylsilanes. The authors describe the preparation of these compounds via the use of magnesium metal-mediated reductive tri- and difluoromethylation of chlorosilanes.

Research has been conducted on bis(beta-trimethylsilylethanesulfonyl)imide. The preparation of this compound via alkylation of bismethanesulfonimide trianion in combination with (iodomethyl)trimethylsilane is described.

Research has been conducted on anti,anti-dipropionate stereotriads. The stereoselective synthetic method for preparation of these compounds has been developed via the reaction of alpha-methyl-beta-hydroxy aldehydes with (Z)-crotyltrifluorosilanes, and the details are reported.