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Site-selective chemistry and the attachment of peptides to the surface of a microelectrode array.

ABSTRACT: Peptides have been site-selectively placed on microelectrode arrays with the use of both thiol-based conjugate additions and Cu(I)-coupling reactions between thiols and aryl halides. The conjugate addition reactions used both acrylate and maleimide Michael acceptors. Of the two methods, the Cu(I)-coupling reactions proved far superior because of their irreversibility. Surfaces constructed with the conjugate addition chemistry were not stable at neutral pHs, especially the surface using the maleimide acceptor. Once a peptide was placed onto the array, it could be monitored in "real-time" for its interactions with a biological receptor.

SUBMITTER: Fellet MS

PROVIDER: S-EPMC3950271 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature

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Site-selective chemistry and the attachment of peptides to the surface of a microelectrode array.

Fellet Melissae Stuart MS Bartels Jennifer L JL Bi Bo B Moeller Kevin D KD

Journal of the American Chemical Society 20120928 40

Peptides have been site-selectively placed on microelectrode arrays with the use of both thiol-based conjugate additions and Cu(I)-coupling reactions between thiols and aryl halides. The conjugate addition reactions used both acrylate and maleimide Michael acceptors. Of the two methods, the Cu(I)-coupling reactions proved far superior because of their irreversibility. Surfaces constructed with the conjugate addition chemistry were not stable at neutral pHs, especially the surface using the malei ...[more]

PMID: 22992158

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