Tailoring zinc porphyrin to the Ag nanostructure substrate: an effective approach for photoelectrochemical studies in the presence of mononucleotides.
Analyst
; 138(12): 3380-7, 2013 Jun 21.
Article
em En
| MEDLINE
| ID: mdl-23612117
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.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Analyst
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Canadá