A BUBBLE GAS SENSOR FOR QUNTITATIVE CHEMICAL ANALYSIS

用于定量化学分析的气泡气体传感器

• 批准号: 1509912
• 负责人: Hanseup Kim
• 金额: $ 36.76万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-06-01 至 2019-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1509912&HistoricalAwards=false
• 关键词: BUBBLE; GAS; SENSOR; QUNTITATIVE; CHEMICAL

Proposal 1509912Title: A bubble gas sensor for quantitative chemical analysisPI: Kim, HanseupBrief description of project goals: This project aims to investigate the science of micro-scale fluidic phenomena and develop a high-performance gas sensor.a) Nontechnical Abstract:Quantification is one of the most critical parameters in many analytical applications, especially when interfacing with the chemical and biological domains, which feature enormous diversity in elements. Despite remarkable progress, miniature gas sensors still remain incapable of measuring gas quantity precisely because of issues in response drift, saturation, and limited specificity. This project proposes the development of a sensing mechanism that addresses such issues by investigating unexplored fluidic phenomena in the micro-domain and by demonstrating a microfluidic sensor. The proposed research will provide a new paradigm in gas sensing and quantification and will have a broad range of societal impacts in numerous fields, including occupational safety regulation, environmental sciences, personal and community behavioral sciences, homeland security, chemical manufacturing, and health science. In this context, the proposed project will provide a foundation for highly inter-disciplinary research and education, where students are exposed to broadly connected societal values among engineering, science, medicine, social sciences, and public policy. This program will also provide an opportunity to reach out to the K-12 community in collaboration with a local museum; to industry via intellectual property generation directed toward commercialization; and to the undergraduate and graduate students via class development on important advances in novel sensing mechanisms and microfluidics principles. b) Technical Abstract: This project aims (1) to establish a novel class of a gas sensing principle by investigating the science of microfluidic bubble formation and (2) to fabricate a bubble-based sensor which improves gas sensing performance by two orders of magnitude in comparison to existing counterparts. Specifically, this project will investigate the microfluidic gas/liquid interface properties of various gas types via microfabricated structures. An optimized prototype of a high performance gas sensor will be microfabricated to demonstrate high-precision gas quantification. By combining the fundamental science studies with experimental data, the proposed research is expected to establish fundamental and comprehensive understanding on bubble formation phenomena in the microfluidic domain, in relation to gas-liquid interfacial parameters. Such an understanding will enable this program to further demonstrate a high-precision micro gas sensor device that is capable of quantifying gas amounts with outstanding dynamic range, resolution, and linearity.

提案1509912标题：用于定量化学分析的气泡气体传感器PI：Kim，Hanseup项目目标简述： 该项目旨在研究微尺度流体现象的科学，并开发一种高性能的气体传感器。a）非技术摘要：在许多分析应用中，定量是最关键的参数之一，特别是当与化学和生物领域，其中具有巨大的多样性元素的接口。尽管取得了显着进展，但由于响应漂移、饱和和特异性有限等问题，微型气体传感器仍然无法精确测量气体量。该项目提出了一种传感机制的发展，解决了这些问题，通过调查未开发的流体现象在微域，并通过演示一个微流体传感器。拟议的研究将提供一个新的模式，在气体传感和量化，并将有广泛的社会影响，在许多领域，包括职业安全法规，环境科学，个人和社区行为科学，国土安全，化学 制造业和健康科学。在这种情况下，拟议的项目将为高度跨学科的研究和教育，学生接触到工程，科学，医学，社会科学和公共政策之间广泛联系的社会价值观提供基础。该计划还将提供与当地博物馆合作接触K-12社区的机会;通过面向商业化的知识产权生成向行业;并通过新型传感机制和微流体原理的重要进展的课程开发向本科生和研究生提供。B）技术摘要：该项目的目的是（1）通过研究微流体气泡形成的科学来建立一类新的气体传感原理，以及（2）制造一种基于气泡的传感器，与现有的传感器相比，该传感器将气体传感性能提高了两个数量级。具体而言，该项目将通过微加工结构研究各种气体类型的微流体气/液界面特性。一个高性能气体传感器的优化原型将被微制造，以展示高精度的气体定量。通过将基础科学研究与实验数据相结合，预计所提出的研究将建立对微流体领域中气泡形成现象与气液界面参数相关的基本和全面的理解。这样的理解将使该计划能够进一步展示高精度微型气体传感器设备，该设备能够以出色的动态范围，分辨率和线性度量化气体量。