Electrochemical characterization of nanosized electrode arrays prepared from nanoporous self-assembled monolayers
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- Title
- Electrochemical characterization of nanosized electrode arrays prepared from nanoporous self-assembled monolayers
- Authors
- Choi, SJ; Park, SM
- Date Issued
- 2002-05-20
- Publisher
- KOREAN CHEMICAL SOC
- Abstract
- We characterized nanoelectrode arrays prepared from self-assembled monolayers (SAMs) by adsorption from a solution containing thiolated beta-cyclodextrin (beta-CD) and n-alkanethiol on the gold electrode surface, using electrochemical methods. While the framework, the n-hexadecanethiol SAM, effectively blocked electron transfer between the electrode surface and solution-phase redox probe molecules, the beta-CD cavities isolated in the forests of n-hexadecanethiol molecules were shown to act as an ultramicroelectrode array. The shapes of cyclic voltammograms of probe molecules were related to the number densities of beta-CD molecules within the monolayer films. Probe molecules that have the correct combination of physical and chemical characteristics were shown to effectively penetrate the framework through the beta-CD pores and exchange electrons with the electrode surface.
- Keywords
- nanoporous; nanoelectrode arrays; thiolated beta-cyclodextrin; self-assembled monolayers; molecular selectivity; BETA-CYCLODEXTRIN; MOLECULAR RECOGNITION; ORGANIC-SURFACES; CHARGE-TRANSFER; GOLD; COMPLEXATION; TEMPLATES; ALKANETHIOLS; POLYMERS; BINDING
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19067
- DOI
- 10.5012/bkcs.2002.23.5.699
- ISSN
- 0253-2964
- Article Type
- Article
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 23, no. 5, page. 699 - 704, 2002-05-20
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