Title page for etd-0628118-105352


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URN etd-0628118-105352
Author Shu-po Hsu
Author's Email Address No Public.
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Department Electrical Engineering
Year 2017
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Non-Enzymatic Glucose Sensors with Decoration of TiO2 or MnO2 Nanoparticles on ZnO Nanotubes
Date of Defense 2018-07-24
Page Count 93
Keyword
  • znic oxide nanotubes
  • titanium dioxide
  • hydrothermal synthesis
  • manganese dioxide
  • non-enzymatic glucose sensor
  • Abstract In this thesis, we investigated zinc oxide (ZnO) nanotubes/ITO glass substrate decorated with two different metal oxides’ nanoparticles (TiO2 and MnO2) for non-enzymatic glucose sensors. Firstly, a ZnO seed layer was deposited on ITO glass substrate by RF sputtering system. ZnO nanorods were then grown by hydrothermal synthesis. Alkaline etching solution was prepared to etch ZnO nanorods into nanotubes (ZnO NTs/ITO). In addition, TiO2 nanoparticles and MnO2 nanoparticles were also grown in this study. TiO2 and MnO2 nanoparticles were decorated on ZnO NTs by dip coating and drop coating respectively to complete the dip-coated TiO2/ ZnO/ ITO, the drop-coated TiO2/ ZnO/ ITO and the drop-coated MnO2/ ZnO/ ITO sensing elements. The ZnO NTs structure is used because it has a stable and excellent nano-scale morphology, which can effectively increase the contact area between the analyte and the electrode. With decoration of two different metal oxides, the sensing ability to glucose is effectively improved.
      The experimental results show that the 17.5mg drop-coated MnO2/ ZnO/ ITO sensing element has the best sensing performance to glucose. The sensitivity is 109.612μAmM-1cm-2, the value of R2 is 0.9959, and the linear sensing range is 0.1mM~7.0mM. The addition of interferents has an effect on the current of less than 10% and the response time is less than 3 seconds. Excellent glucose sensors for detecting diabetes is more accurately and quickly. It is also important to the development of food industry.
    Advisory Committee
  • Ying-Chung Chen - chair
  • Shih-Fang Chen - co-chair
  • Cheng-Yu Ma - co-chair
  • Feng-Renn Juang - advisor
  • Files
  • etd-0628118-105352.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2018-07-28

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