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A Fully Integrated Wireless Flexible Ammonia Sensor Fabricated by Soft Nano-Lithography.
ACS Sensors ( IF 8.2 ) Pub Date : 2019-03-01 , DOI: 10.1021/acssensors.8b01690 Ning Tang 1 , Cheng Zhou 1 , Lihuai Xu 1 , Yang Jiang 1 , Hemi Qu 1, 2 , Xuexin Duan 1, 2
ACS Sensors ( IF 8.2 ) Pub Date : 2019-03-01 , DOI: 10.1021/acssensors.8b01690 Ning Tang 1 , Cheng Zhou 1 , Lihuai Xu 1 , Yang Jiang 1 , Hemi Qu 1, 2 , Xuexin Duan 1, 2
Affiliation
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Flexible ammonia (NH3) sensors based on one-dimensional nanostructures have attracted great attention due to their high flexibility and low power consumption. However, it is still challenging to reliably and cost-effectively fabricate ordered nanostructure-based flexible sensors. Herein, a smartphone-enabled fully integrated system based on a flexible nanowire sensor was developed for real-time NH3 monitoring. Highly aligned, sub-100 nm nanowires on a flexible substrate fabricated by facile and low-cost soft lithography were used as sensitive elements to produce impedance response. The detection signals were sent to a smartphone and displayed on the screen in real time. This nanowire-based sensor exhibited robust flexibility and mechanical durability. Moreover, the integrated NH3 sensing system presented enhanced performance with a detection limit of 100 ppb, as well as high selectivity and reproducibility. The power consumption of the flexible nanowire sensor was as low as 3 μW. By using this system, measurements were carried out to obtain reliable information about the spoilage of foods. This smartphone-enabled integrated system based on a flexible nanowire sensor provided a portable and efficient way to detect NH3 in daily life.
中文翻译：
通过软纳米光刻技术制造的完全集成的无线柔性氨传感器。
基于一维纳米结构的柔性氨（NH3）传感器由于其高灵活性和低功耗而备受关注。然而，可靠且经济高效地制造有序的基于纳米结构的柔性传感器仍然具有挑战性。本文中，开发了基于智能纳米线传感器的支持智能手机的完全集成系统，用于实时NH3监测。通过灵活且低成本的软光刻技术在柔性基板上高度对准的100 nm以下纳米线被用作敏感元件，以产生阻抗响应。检测信号被发送到智能手机并实时显示在屏幕上。这种基于纳米线的传感器表现出强大的柔韧性和机械耐久性。而且，集成的NH3传感系统具有更高的性能，检出限为100 ppb，并且具有很高的选择性和重现性。柔性纳米线传感器的功耗低至3μW。通过使用该系统，进行了测量以获得关于食物变质的可靠信息。这种基于智能手机的集成系统基于柔性纳米线传感器，提供了一种便携式，高效的方式来检测日常生活中的NH3。
更新日期：2019-02-22
中文翻译：
通过软纳米光刻技术制造的完全集成的无线柔性氨传感器。
基于一维纳米结构的柔性氨（NH3）传感器由于其高灵活性和低功耗而备受关注。然而，可靠且经济高效地制造有序的基于纳米结构的柔性传感器仍然具有挑战性。本文中，开发了基于智能纳米线传感器的支持智能手机的完全集成系统，用于实时NH3监测。通过灵活且低成本的软光刻技术在柔性基板上高度对准的100 nm以下纳米线被用作敏感元件，以产生阻抗响应。检测信号被发送到智能手机并实时显示在屏幕上。这种基于纳米线的传感器表现出强大的柔韧性和机械耐久性。而且，集成的NH3传感系统具有更高的性能，检出限为100 ppb，并且具有很高的选择性和重现性。柔性纳米线传感器的功耗低至3μW。通过使用该系统，进行了测量以获得关于食物变质的可靠信息。这种基于智能手机的集成系统基于柔性纳米线传感器，提供了一种便携式，高效的方式来检测日常生活中的NH3。
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