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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/6922


    Title: 光學式生化反應即時偵測系統
    Authors: 吳建宏;Jian-Hung Wu
    Contributors: 光電科學研究所
    Keywords: 光學感測器;導膜共振;Biosensor;Guide-mode resonance;DNA hybridization
    Date: 2006-07-10
    Issue Date: 2009-09-22 10:32:12 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 本文研製一新型光學生物感測器:導模共振(guided mode resonance, GMR)光學生物感測器。本元件利用半導體技術,製作一次波長光柵結構,並利用其產生的窄帶高反射率之效果,及其光柵表面區域之高敏感度,應用於共種生化反應,本元件具有以下優點:免標定、微小化、可高產量、即時偵測、易與其它半導體元件接合之優點。 本研究已將GMR元件組裝至流體系統內,形成GMR流體晶片。除了方便將整個生化實驗於晶片內進行外,所使用到的檢體量也相對的減少,並發展出一套即時檢測平台,縮短了檢測所需時間。目前於晶片本身已能檢測出折射率變化量小於0.001,且偵側去氧核醣核酸之雜交行為,除了可即時觀察出有無雜交反應外,其有無雜交差異量更達9倍之多。對於胜肽合成,能成功偵測出每段長度約0.3nm之胺基酸接合反應及其反應之分子動力學行為。We report a novel method for detecting biomolecular interaction which utilizes the guided-mode resonance (GMR) phenomenon with narrow-band high reflection efficiency characteristics. The structure of GMR device generally consists of two stages — upper grating layer and waveguide layer. GMR device and flow cell are combined to from a GMR flow cell system. The system has several advantages such as label-free, minimizing, real time monitoring, high throughput, low cost, and the potential to become portable. We show the system experimentally with the ability to detect the refractive index variations <0.001,the amino acid thickness variations <0.3nm. It also can detect DNA hybridization and measure molecular interaction.
    Appears in Collections:[光電科學研究所] 博碩士論文

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