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24 August 2009 Synthesis, structure, and electrochemical properties of nano-layered organic-inorganic perovskites containing Fe(CN)6 3- layers and its application for detection of DNA hybridization
Jing Wu, Hanxing Liu
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Proceedings Volume 7381, International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors; 73810N (2009) https://doi.org/10.1117/12.830562
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China
Abstract
Steady organic-inorganic perovskite hybrids with [H22-AMP]3/2Fe(CN)6, [H23-AMP]3/2Fe(CN)6 and [H24- AMP]3/2Fe(CN)6 (AMP = aminomethylpyridine) were formed in the air. Each structure shows an unusual layered organic-inorganic structural type. The hybrids enveloped in paraffin, respectively, to prepare hybrid paste electrode (HPE) (HPE-2 with [H22-AMP]3/2Fe(CN)6, HPE-3 with [H23-AMP]3/2Fe(CN)6, HPE-4 with [H24-AMP]3/2Fe(CN)6). Three hybrids in HPEs showed good electrochemical characteristics. The sequence of redox activity is [H24- AMP]3/2Fe(CN)6 > [H22-AMP]3/2Fe(CN)6 > [H23-AMP]3/2Fe(CN)6 and that of electrocatalytical characteristics is [H23- AMP]3/2Fe(CN)6 > [H22-AMP]3/2Fe(CN)6 > [H24-AMP]3/2 Fe(CN)6. Three hybrids have been employed to investigate the interaction between DNA and three hybrids. The results indicate that between [H23-AMP]3/2Fe(CN)6 and DNA is useful and [H23-AMP]3/2Fe(CN)6 can detect the hybridization of DNA. And the interaction between [H22-AMP]3/2Fe(CN)6 and DNA and between [H24-AMP]3/2Fe(CN)6 and DNA is slender. Three HPEs display remarkable electrochemical sensitivity and stability. The variation coefficients (RSD) of repeatedly successive and interval assays are less than 2.5%. The chemical and physical stability of three hybrids is satisfactory.
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Jing Wu and Hanxing Liu "Synthesis, structure, and electrochemical properties of nano-layered organic-inorganic perovskites containing Fe(CN)6 3- layers and its application for detection of DNA hybridization", Proc. SPIE 7381, International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, 73810N (24 August 2009); https://doi.org/10.1117/12.830562
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KEYWORDS
Perovskite
Amplifiers
Electrodes
Oxidation
Scanning electron microscopy
Magnesium
Crystals
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