A generic platform for the addressable functionalisation of electrode surfaces through self-induced "electroclick".
A generic platform for the addressable functionalisation of electrode surfaces through self-induced "electroclick".
复制标题
通过自感应“电点击”对电极表面进行可寻址功能化的通用平台。
DOI:
10.1002/chem.201102620
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Y. Le Mest
中科院分区:
文献类型:
--
作者:
Christophe Orain;N. le Poul;Antoine Gomila;Jean;Nathalie Cosquer;O. Reinaud;F. Conan;Y. Le Mest
A novel and general strategy for the immobilisation of functional objects onto electrodes is described. The concept is based on the addition of two pendant ethynyl groups onto a bis(pyridyl)amine derivative, which acts as a molecular platform. This platform is pre-functionalised with an N(3)-tagged object of interest by Huisgen cycloaddition to one of the ethynyl groups in biphasic conditions. Hence, when complexed by Cu(II) , this molecular-object holder can be immobilised, by a "self-induced electroclick", through the second ethynyl group onto N(3)-alkanethiol self-assembled monolayers on a gold electrode. Two different functional groups, a redox innocent ((CH(2))(3)-Ph) and an electrochemical probe (ferrocene), were immobilised by following this strategy. The in situ electrochemical grafting showed, for both systems, that the kinetics of immobilisation is fast. The voltammetric characterisation of the surface-tagged functionalised copper complexes indicated that a good surface coverage was achieved and that a moderately fast electron-transfer reaction occurs. Remarkably, in the case of the redox-active ferrocenyl-immobilised system, the electrochemical response highlighted the involvement of the copper ion of the platform in the kinetics of the electron transfer to the ferrocene moiety. This platform is a promising candidate for applications in surface addressing in areas as diverse as biology and materials.
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影响因子:
15
作者:
Devaraj, NK;Dinolfo, PH;Collman, JP
通讯作者:
Collman, JP
影响因子:
3.9
作者:
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影响因子:
15
作者:
McCrory CC;Devadoss A;Ottenwaelder X;Lowe RD;Stack TD;Chidsey CE
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Chidsey CE
影响因子:
3.3
作者:
Devaraj, Neal K.;Decreau, Richard A.;Chidsey, Christopher E. D.
通讯作者:
Chidsey, Christopher E. D.
影响因子:
20.6
作者:
Eckermann AL;Feld DJ;Shaw JA;Meade TJ
通讯作者:
Meade TJ