一种电酶法柔性乳酸分子传感器

2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2012-03-05 DOI:10.1109/NEMS.2012.6196802

N. Thomas, I. Lähdesmäki, B. Parviz

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引用次数: 6

摘要

我们提出了一种乳酸盐电子分子传感器的制造和电化学表征，该传感器由优化的三电极设置组成，位于透明、柔性的聚合物衬底上。该传感器是功能化与黄酶乳酸氧化酶作为一个选择性的，纳米级识别元件。它们在~ 370 μ am -1cm-2的线性范围内具有极高的灵敏度，极低的检测限为~ 5 μM，并且具有良好的热稳定性，工作电极面积仅为~ 0.19 mm2。我们设想传感器用于一次性测量食品或农产品中的乳酸水平，以监测其新鲜度，并显示各种乳制品的乳酸水平测量结果。

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An electro-enzymatic flexible molecular lactate sensor

We present the fabrication and electrochemical characterization of an electronic molecular lactate sensor comprised of an optimized three-electrode setup on a transparent, flexible polymer substrate. The sensors are functionalized with the flavoenzyme lactate oxidase as a selective, nanoscale recognition element. They exhibit an exceptionally high sensitivity in their linear range of ~ 370 μAmM-1cm-2, a very low detection limit of ~ 5 μM, and good thermal stability, with a working electrode area of only ~ 0.19 mm2. We envision the sensors being utilized for one-time measurements of lactate levels in food or agricultural products for monitoring of their freshness, and show results of lactate level measurements for various dairy products.

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来源期刊

2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)

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