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Issue 12, 2013
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Tailoring zinc porphyrin to the Ag nanostructure substrate: an effective approach for photoelectrochemical studies in the presence of mononucleotides

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Abstract

The substituted porphyrin 2-cyano-3-(2′-(5′,10′,15′,20-tetraphenyl porphyrinato zinc-(II))yl) acrylic acid was used to modify nanostructured Ag surfaces. This porphyrin-modified surface exhibits photocurrent when exposed to a light source, which is modulated in the presence of nucleotides. The addition of the nucleotides adenosine-5′-monophosphate (AMP), guanosine-5′-monophosphate (GMP) and cytidine-5′-monophosphate (CMP) causes partial quenching of the photoelectrochemical response of the porphyrin. The quenching efficiency is 80%, 68% and 48% for AMP, CMP and GMP, respectively. This work represents a new aspect of Ag NS substrates and highlights their usefulness as transducers a for potential chemosensor systems.

Graphical abstract: Tailoring zinc porphyrin to the Ag nanostructure substrate: an effective approach for photoelectrochemical studies in the presence of mononucleotides

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Article information


Submitted
21 Jan 2013
Accepted
04 Apr 2013
First published
05 Apr 2013

Analyst, 2013,138, 3380-3387
Article type
Paper

Tailoring zinc porphyrin to the Ag nanostructure substrate: an effective approach for photoelectrochemical studies in the presence of mononucleotides

F. Fathi, C. Kong, Y. Wang, Y. Xie, Y. Long and H. Kraatz, Analyst, 2013, 138, 3380
DOI: 10.1039/C3AN00156C

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