ASIA unversity:Item 310904400/81152
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    题名: A new approach for noninvasive transdermal determination of blood uric acid levels
    作者: 程德勝 Yong, KK;Yong, KK;Yao, YD;Yao, YD;Shen, HT;Shen, HT;Hsieh, SM;Hsieh, SM;Jheng, DY;Jheng, DY;Sun, TP;Sun, TP;Shieh, HL;Shieh, HL
    贡献者: 光電與通訊學系
    关键词: biosensor;electroporation;laser;noninvasive;reverse iontophoresis;uric acid
    日期: 2014-06
    上传时间: 2014-10-01 08:46:59 (UTC+0)
    摘要: The aims of this study were to investigate the most effective combination of physical forces from laser, electroporation, and reverse iontophoresis for noninvasive transdermal extraction of uric acid, and to develop a highly sensitive uric acid biosensor (UAB) for quantifying the uric acid extracted. It is believed that the combination of these physical forces has additional benefits for extraction of molecules other than uric acid from human skin. A diffusion cell with porcine skin was used to investigate the most effective combination of these physical forces. UABs coated with ZnO₂ nanoparticles and constructed in an array configuration were developed in this study. The results showed that a combination of laser (0.7 W), electroporation (100 V/cm(2)), and reverse iontophoresis (0.5 mA/cm(2)) was the most effective and significantly enhanced transdermal extraction of uric acid. A custom-designed UAB coated with ZnO₂ nanoparticles and constructed in a 1×3 array configuration (UAB-1×3-ZnO₂) demonstrated enough sensitivity (9.4 μA/mM) for quantifying uric acid extracted by the combined physical forces of laser, electroporation, and RI. A good linear relationship (R(2)=0.894) was demonstrated to exist between the concentration of uric acid (0.2-0.8 mM) inside the diffusion cell and the current response of the UAB-1×3-ZnO₂. In conclusion, a new approach to noninvasive transdermal extraction and quantification of uric acid has been established.
    關聯: International Journal of Nanomedicine;9:3069-76.
    显示于类别:[光電與通訊學系] 期刊論文

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