A novel poly(l-glutamic acid) (PLGA) self-assembled monolayer was prepared on an Au electrode. The conformational transition of the PLGA segment betweenα-helix and coil could be electrochemically monitored by use of a redox couple of Fe(CN)63–/4– . The helical PLGA monolayer was found to capture ferrocene-modified glutamic acids enantiomerically by means of an electron transfer reaction of the surface-confined ferrocenyl moiety.
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Journal of Materials Chemistry
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