Home Ozone Monitor Incorporating Low Cost High Performance Printed Gas Sensors

 描述(由申请人提供)：该SBIR第二阶段计划的总体目标是继续开发KWJ Engineering，Inc.(KWJ)正在开发的一种新型气体传感器并将其商业化，以实现臭氧监测和基于该技术的新型家用臭氧报警器的实施。这一第一阶段计划与NIEHS的使命直接相关，因为它旨在通过为高危人群提供一种可靠的手段，让他们意识到家中不健康的臭氧状况，从而减少由环境原因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，这是一种非常小、超低功率、高可靠性的印刷电化学传感器，用于开发家用臭氧(O3)警报，为患有呼吸系统疾病的个人和所有关心他们暴露在臭氧中的人提供服务。这一警报将帮助那些患有呼吸系统疾病的人通过提醒他们注意可能加剧呼吸系统问题或对生命和健康构成危险的臭氧状况来管理他们的健康。在美国，超过1.18亿人生活在未达到环保局8小时臭氧标准的地区。在如此高水平的地面臭氧区域，哮喘和其他呼吸疾病的潜在发展，以及包括老年人和儿童在内的高危群体现有呼吸疾病的恶化，要求使用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)将以商品级的价格为广泛的应用提供高性能的气体传感。这些设备大约一角钱大小，能够使用各种传统的和发育中的电解液。与传统传感器相比，这提供了前所未有的对环境条件的广泛可调选择性、敏感度和稳健性。第一阶段计划包括制造和测试SPEC器件，并证明可以使用新的电极和电解液来生产灵敏度、检测极限、稳定性和可靠性更好的传感器 目前的商用传感器。这些传感器与标准的紫外光谱分析臭氧测量进行了对比验证，并成功地被证明是启动家庭臭氧警报演示的传感器，臭氧浓度与健康相关(0至130 ppb)。第二阶段将完成传感器的开发，特别是基于电解液和催化剂的合理设计，并将生产原型臭氧警报装置，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.