Wearable Photoelectrocatalytic Personal Environmental Exposure Monitor

描述(由申请人提供) 传统的环境暴露监测需要庞大的仪器，而不提供个性化的环境暴露历史。Valencell的长期目标是提供一种非侵入性、低调、实时、经济实惠的个人环境暴露监测平台，该平台几乎不会被用户注意到，从而实现最高性能和便利性。该平台将提供个人水平、接触点暴露于各种空气传播化学毒素的定量、可靠的现场测量，这些化学毒素对注重健康的最终用户、运动爱好者、免疫功能受损的人和医疗专业人员特别感兴趣。集成的蓝牙通信协议将被用于向手机或PDA无线发送实时信息。然后，这些信息可以无线发送到在线数据库，用于存储和处理与个人环境因素和用户人口统计相关的个人健康信息。 这项第一阶段可行性研究的具体目标是开发一种新型传感器元件，提供在同一紧凑型设备中灵活地监测挥发性有机化合物(VOCs)、臭氧、一氧化碳、多环芳烃(PAHs)和其他空气中活性物质的能力。灯丝加热的氧化锡VOC传感器是固态VOC传感的主力，它足够紧凑，但需要很大的工作功率，并且缺乏蒸汽特异性。Valencell的创新方法是开发一种新型的宽带隙(WBG)VOC传感器，与标准金属氧化物传感器相比，该传感器具有更高的蒸汽专用性并显著降低了功耗。这一创新有助于开发一种新型、低功耗(&lt；10 mW)、实时(&lt；100 ms采样)、紧凑(&lt；10 cm3)、能够长期使用电池供电、高特异度和宽灵敏度(0.1至1000 ppm)的可穿戴VOC监测仪。 在这个项目中，Valencell将用北卡罗来纳州立大学(NCSU)沉积的新型WBG金属氧化物薄膜制造传感器电极。这些传感器电极的功能将通过在钟形罐VOC试验台上评估每个电极的灵敏度和特异度来验证。传感器电极将被集成到一个独立的VOC传感器原型中，以便可以在VOC试验台上对预测的性能规范进行统计验证。

DESCRIPTION (provided by applicant) Conventional environmental exposure monitoring requires bulky instrumentation without providing a personalized history of environmental exposure. Valencell's long-term goal is to provide a noninvasive, low-profile, real-time, affordable personal environmental exposure monitor platform that is virtually unnoticed by the user for maximum performance and convenience. This platform will provide a quantitative, reliable, in-field measurement of personal-level, point-of-contact exposure to a variety of airborne chemical toxins of particular interest to health conscious end-users, sports enthusiasts, the immunocompromised, and medical professionals. Integrated Bluetooth communication protocols will be employed towards sending real-time information wirelessly to a cell phone or PDA. In turn, this information can then be sent wirelessly to online databases for storing and processing information relating personal health with personal environmental factors and user demographics. The specific goal of this Phase I feasibility study is the development of a novel sensor element providing the flexibility of monitoring volatile organic compounds (VOCs), ozone, carbon monoxide, polycyclic aromatic hydrocarbons (PAHs), and other reactive airborne species in the same compact device. Filament-heated tin oxide VOC sensors, the workhorse of solid-state VOC sensing, are sufficiently compact but require significant operating power and lack vapor specificity. Valencell's innovative approach is the development of a novel wide band gap (WBG) VOC sensor offering enhanced vapor specificity and dramatically reduced power consumption over standard metal oxide sensors. This innovation enables the development of a novel, low-power (<10 mW), real-time (<100 ms sampling), compact (< 10 cm3), wearable VOC monitor capable of long-term battery-powered operation, high specificity, and broad sensitivity (0.1 to 1000 ppm). In this program, Valencell will fabricate sensor electrodes from novel WBG metal-oxide films deposited by North Carolina State University (NCSU). The functionality of these sensor electrodes will then be validated by evaluating the sensitivity and specificity of each electrode in a bell jar VOC test bed. The sensor electrodes will then be integrated into a self-contained VOC sensor prototype such that the predicted performance specifications can be statistically validated in the VOC test bed.