Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/23780
Title: Development of membrane-based electrodes for electroanalytical applications
Authors: NGUYEN THI THANH BINH
Keywords: nanoporous, alumina, membrane, biosensor, sensor, separation
Issue Date: 7-Oct-2010
Source: NGUYEN THI THANH BINH (2010-10-07). Development of membrane-based electrodes for electroanalytical applications. ScholarBank@NUS Repository.
Abstract: We demonstrated new applications of membrane-based electrode systems in combination with electrochemistry techniques in separation science, chemical and bio- sensor. Mobility of charged ferrocenes within nanochannels of membrane-based electrodes was measured by collection and shielding experiments. The selective mass transport up to 16 times of opposite charged ferrocene species was achieved by controlling electrode potential. The selectivity for LysSA:Mb in a mixed protein solution could be also tuned between the flux ratios of 2:2:1 and 96:1:12, respectively, by simple variation of the membrane potential. A model K+ sensor based on nanochannel-membrane electrode modified by electrochemical deposition of Prussian blue within nanochannels exhibited high stability and extremely low detection limit of 2.0¿10-8 M. Biosensor with immunoglobulin M as the biorecognition probe immobilized along nanochannels of membrane-based electrode showed low detection limit of 4 pg mL-1 and 0.02 PFU mL-1, respectively for the West Nile Virus domain III protein and particles.
URI: http://scholarbank.nus.edu.sg/handle/10635/23780
Appears in Collections:Ph.D Theses (Open)

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02Contents.pdf158.28 kBAdobe PDF

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03CHAPTER 1.pdf695.99 kBAdobe PDF

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04CHAPTER 2.pdf272.39 kBAdobe PDF

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05CHAPTER 3.pdf249.14 kBAdobe PDF

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07CHAPTER 5.pdf2.94 MBAdobe PDF

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08Conclusions and future works.pdf37.89 kBAdobe PDF

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