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首页> 外文期刊>IEEE transactions on nanotechnology >The Fabrication and Sensing Characteristics of Arrayed Flexible IGZO/Al Urea Biosensor Modified by Graphene Oxide
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The Fabrication and Sensing Characteristics of Arrayed Flexible IGZO/Al Urea Biosensor Modified by Graphene Oxide

机译：氧化石墨烯修饰的柔性IGZO / Al尿素阵列传感器的制备与传感特性

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摘要

The urease membrane was immobilized on the surface of indium gallium zinc oxide (IGZO) based on polyethylene terephthalate substrate, which was used to develop an arrayed flexible urea biosensor in this study. In order to improve the properties of arrayed flexible IGZO/Al urea biosensor, graphene oxide (GO) was employed to modify the properties of arrayed flexible IGZO urea biosensor. Compared with the average sensitivity of 1.53 mV/(mg/dl) and linearity of 0.931 for arrayed flexible IGZO/Al urea biosensor, the average sensitivity and linearity of arrayed flexible IGZO urea biosensor modified by GO achieved 3.06 mV/(mg/dl) and 0.970, respectively. As the result, 5 mM pH 7.0 PBS buffer solution was the optimal measurement environment for Urease/IGZO/GO/Al urea biosensor, and which the average sensitivity was 3.65 [mV/(mg/dl)]. Anti-interference testing showed the arrayed flexible IGZO/Al urea biosensor modified by GO was not easily interfered from the other materials.
机译：将尿素酶膜固定在基于聚对苯二甲酸乙二酯的铟镓锌氧化物（IGZO）的表面上，该膜用于开发阵列柔性尿素生物传感器。为了改善阵列式柔性IGZO / Al尿素生物传感器的性能，采用氧化石墨烯（GO）来修饰阵列式柔性IGZO /尿素生物传感器的性能。与GO修饰的阵列式IGZO / Al尿素生物传感器的平均灵敏度为1.53 mV /（mg / dl）和线性为0.931相比，GO改性的阵列式IGZO尿素生物传感器的平均灵敏度和线性为3.06 mV /（mg / dl）和0.970。结果，5 mM pH 7.0 PBS缓冲溶液是Urease / IGZO / GO / Al尿素生物传感器的最佳测量环境，平均灵敏度为3.65 [mV /（mg / dl）]。抗干扰测试表明，GO修饰的阵列柔性IGZO / Al尿素生物传感器不易受到其他材料的干扰。

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