Home Ozone Monitor Incorporating Low Cost High Performance Printed Gas Sensors

 描述（由申请人提供）：SBIR第二阶段计划的总体目标是继续开发和商业化KWJ工程公司正在开发的新型气体传感器。(KWJ)臭氧监测和一个新的家庭臭氧报警器的实施基于这一技术。该第一阶段计划与NIEHS的使命直接相关，因为它旨在通过为处于危险中的人群提供可靠的手段来了解其家中不健康的臭氧状况，从而减少因环境原因而引起的人类疾病和功能障碍的负担。我们将展示这种新型气体传感器的应用，这种传感器是一种非常小，超低功耗，高可靠性的印刷电化学传感器，用于为患有呼吸系统疾病的个人和所有关注臭氧暴露的人开发家用臭氧（O3）报警器。这种警报将帮助那些有呼吸系统疾病的人管理他们的健康，提醒他们臭氧状况可能加剧呼吸系统问题或对生命和健康构成危险。在美国，超过1.18亿人生活在未达到EPA 8小时臭氧标准的地区。哮喘和其他呼吸系统疾病的发展潜力，以及包括老年人和儿童在内的高危人群现有呼吸系统疾病的恶化，需要一种实用的家用臭氧监测仪，类似于现在家庭中常见的一氧化碳监测仪。KWJ的新型电流型气体传感器，丝网印刷电化学传感器（SPEC），将以商品级价格为广泛的应用提供高性能的气体传感。这些设备大约只有一角硬币大小，能够使用各种传统和开发的电解质。与传统传感器相比，这提供了对环境条件的广泛可调选择性、灵敏度和鲁棒性的前所未有的访问。第一阶段计划涉及SPEC设备的制造和测试，并证明新电极和电解质可用于生产具有更高灵敏度，检测限，稳定性和可靠性的传感器 目前的商业传感器。这些传感器与标准的紫外光谱臭氧测量进行了验证，并成功地证明了作为家庭臭氧警报演示的致动传感器，臭氧浓度与健康问题有关（0至130 ppb）。第二阶段将完成传感器的开发，特别是基于电解质和催化剂的合理设计，并将生产臭氧报警装置原型，供我们的工业合作伙伴进行测试和验证。

 DESCRIPTION (provided by applicant): The overall goal of this SBIR Phase II program is to continue development and commercialization of a new class of gas sensor under development by KWJ Engineering, Inc. (KWJ) to ozone monitoring and the implementation of a new home ozone alarm based on this technology. This Phase I program is directly related to the mission of NIEHS, as it aims to reduce of the burden of human disease and dysfunction arising from environmental causes by providing a reliable means for at-risk populations to be aware of unhealthy ozone conditions in their homes. We will demonstrate the application of this new gas sensor, a very small, ultralow power, high reliability printed electrochemical sensor, for development of a home ozone (O3) alarm for individuals with respiratory diseases and all those concerned about their exposure to ozone. This alarm will help those with respiratory conditions to manage their health by alerting them to ozone conditions that may exacerbate respiratory problems or pose danger to life and health. Over 118 million people in the United States live in areas of nonattainment of the EPA 8 hour ozone standard. The potential for development of asthma and other respiratory conditions, as well as aggravation of existing respiratory conditions among at-risk groups including the elderly and children in such high ground level ozone areas calls for a practical home ozone monitor, similar to the carbon monoxide monitors that are now commonplace in the home. KWJ's new class of amperometric gas sensor, the screen-printed electrochemical sensor (SPEC), will deliver high performance gas sensing for a wide range of applications at commodity-level prices. These devices, which are about the size of a dime, are able to use a variety of conventional and developmental electrolytes. This provides unprecedented access to a wide range of tunable selectivity, sensitivity and robustness to environmental conditions compared to conventional sensors. The Phase I program involved fabrication and testing of SPEC devices with demonstration that new electrodes and electrolytes could be used to produce sensor with better sensitivity, detection limit, stability and reliability that current commercial sensors. These sensors were validated vs. standard UV spectrometric ozone measurement and demonstrated successfully as the transducer for actuation of a home ozone alarm demonstration, with ozone concentrations relevant to health concerns (0 to 130 ppb). Phase II will complete development of the sensor, particularly its rational design based on the electrolytes and catalysts, and will produce prototype ozone alarm units to be tested and validated with our industrial partners.