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Detection of low-molecular-weight domoic acid using surface plasmon resonance sensor

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    0023065 - ÚFE 2006 RIV CH eng J - Journal Article
    Yu, Q. - Chen, S. - Taylor, A. D. - Homola, Jiří - Hock, B. - Jiang, S.
    Detection of low-molecular-weight domoic acid using surface plasmon resonance sensor.
    [Detekce domoické kyseliny s použitím senzoru s povrchovými plasmony.]
    Sensors and Actuators B - Chemical. Roč. 107, č. 1 (2005), s. 193-201. E-ISSN 0925-4005.
    [European Conference on Optical Chemical Sensors and Biosensors EUROPT(R)ODE /7./. Madrid, 04.04.2004-07.04.2004]
    Grant - others:US FDA(US) FD-U-002250; National Science Foundation(US) CTS-0092699
    Institutional research plan: CEZ:AV0Z20670512
    Keywords : biosensors * surface plasmon resonance * optical sensors
    Subject RIV: JB - Sensors, Measurment, Regulation
    Impact factor: 2.646, year: 2005

    An immunosensor based on surface plasmon resonance (SPR) was used for the detection of a low-molecular-weight analyte, domoic acid (DA), using an inhibition assay. A novel surface functionalization method was developed to chemically immobilize DA molecules onto a gold-coated SPR chip functionalized with mixed oligo(ethylene glycol) self-assembled monolayers, where the long-chain thiols served as a functional site. A lowest detection limit of 0.1 ng/ml DA was established using the inhibition assay.

    Imunosenzor založený na rezonanci povrchových plasmonů a inhibičním detekčním formátu byl použit pro detekci domoické kyseliny. Senzor byl funcionalizován pomocí nové metody spočívající v imobilizaci domoické kyseliny na povrchu samoorganizující se monovrstvy thiolů. Se senzorem tohoto typu byla domoická kyselina detekována ve velmi nízkých koncentracích, až do 0.1 ng/ml.
    Permanent Link: http://hdl.handle.net/11104/0111745

     
     
Number of the records: 1  

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