| Synthesis, characterization and immobilization of Prussian blue nanoparticles. A potential tool for biosensing devices. | |
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MedLine Citation:
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PMID: 15645039 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Prussian blue (PB) particles with the size of ca. 5 nm were synthesized and immobilized in a multilayer structure, as a strategy for the potential development of an amperometric transducer for oxidase-enzyme-based biosensors. Multilayer films composed of PB and poly(allylamine hydrochloride) (PAH) were prepared via layer-by-layer (LbL) sequential deposition. The process was carefully monitored by UV-vis spectroscopy and cyclic voltammetry. The increase of the redox current peaks during the layer-by-layer deposition demonstrated that charge propagation within the film occurs. Linear increase of UV-vis absorbance with the number of deposited bilayers indicates that well-organized systems have been elaborated. ITO electrodes coated with PB/PAH films were used successfully for detecting H2O2, sensitivity being dependent on the number of PB/PAH layers. |
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Authors:
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Pablo A Fiorito; Vinicius R Gonçales; Eduardo A Ponzio; Susana I Córdoba de Torresi |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2004-11-29 |
Journal Detail:
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Title: Chemical communications (Cambridge, England) Volume: - ISSN: 1359-7345 ISO Abbreviation: Chem. Commun. (Camb.) Publication Date: 2005 Jan |
Date Detail:
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Created Date: 2005-01-12 Completed Date: 2006-06-23 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9610838 Medline TA: Chem Commun (Camb) Country: England |
Other Details:
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Languages: eng Pagination: 366-8 Citation Subset: IM |
Affiliation:
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Instituto de Quimica, Universidade de Sao Paulo, C.P. 26077, 05513-970, Sao Paulo (SP), Brazil. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adsorption Biosensing Techniques* / instrumentation Electrochemistry Enzymes, Immobilized / chemistry Equipment Design Ferrocyanides / chemical synthesis*, chemistry Nanostructures / chemistry* Oxidoreductases / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Enzymes, Immobilized; 0/Ferrocyanides; 14038-43-8/ferric ferrocyanide; EC 1.-/Oxidoreductases |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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