【作者】 梁争喜； 魏建霞； 童峥嵘； 陈才和；

【机构】 天津大学精密仪器与光电子工程学院； 天津航海仪器研究所；

【摘要】 本文研制了一种基于叉指阵列(interdigital array,IDA)薄膜电极的医用多参量血液生化检测的生物传感器。利用光刻等微加工技术在玻璃基底上制备四个IDA微电极,金电极薄膜以铬为黏附层,金膜厚250nm,finger电极宽和间距均为 10μm。工作区中的微电极上分别固定上不同的酶,通过检测“发生-收集”模式下的IDA微电极上生化反应所产生的微电流分别测试血液中血糖、胆固醇、酮体和乳酸浓度。更多还原

【Abstract】 A multi-parameters μTAS bio-senor used for the blood analysis in medicine has been researched and fabricated. 4 groups of interdigital array (IDA) microelectrodes have been fabricated by photolithographic and other microfabrication techniques on glass substrates. Thin-film gold electrodes with a thickness of 250nm have been deposited on a chromium-adhesion layer. The finger electrode width and space are both 10μm. The concentration of Blood sugar, Total Cholesterol, Acetone body and Lactic acid was measured by detecting steady-state limiting currents in IDA microelectrodes modified with enzymes on the "generate-collect" mode.更多还原