Bioelectronic protein nanowire sensors for ammonia detection
Bioelectronic protein nanowire sensors for ammonia detection
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DOI：
10.1007/s12274-020-2825-6
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发表时间：
2020-05-11
期刊：
影响因子：
9.9
通讯作者：
Yao, Jun
中科院分区：
文献类型：
--
作者：
Smith, Alexander F.;Liu, Xiaomeng;Yao, Jun
基于生物材料的电子传感器可以带来低成本、可再生和环保的新型绿色技术。在这里，我们展示了生物电子氨传感器由从微生物硫还原地杆菌中收获的蛋白质纳米线制成。该纳米线传感器可响应大范围的氨浓度(10至10(6)ppb)，涵盖工业、环境和生物医学应用的相关范围。与人体呼气中发现的水分和其他常见气体相比，该传感器对氨的选择性也很高。这些结果为开发基于蛋白质纳米线的气体传感器在工业、农业、环境监测和医疗保健中的应用提供了概念验证演示。
Electronic sensors based on biomaterials can lead to novel green technologies that are low cost, renewable, and eco-friendly. Here we demonstrate bioelectronic ammonia sensors made from protein nanowires harvested from the microorganism Geobacter sulfurreducens. The nanowire sensor responds to a broad range of ammonia concentrations (10 to 10(6) ppb), which covers the range relevant for industrial, environmental, and biomedical applications. The sensor also demonstrates high selectivity to ammonia compared to moisture and other common gases found in human breath. These results provide a proof-of-concept demonstration for developing protein nanowire based gas sensors for applications in industry, agriculture, environmental monitoring, and healthcare.