Chemical Dynamics of Gas Adsorption and Desorption on Organic Sensor Films

有机传感器薄膜上气体吸附和解吸的化学动力学

• 批准号: 0848502
• 负责人: Andrew Kummel
• 金额: $ 39万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-02-01 至 2013-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0848502&HistoricalAwards=false
• 关键词: Chemical; Dynamics; Gas; Adsorption; Desorption

The Analytical and Surface Chemistry Program of the Division of Chemistry at NSF supports the research program of Prof. Kummel of the University of California, San Diego (UCSD). Prof. Kummel and his students investigate how explosive molecules absorb onto organic films and change their electrical properties; the change in electrical properties is used to detect the presence of the explosive molecules thereby creating a sensor. The sensors are similar to the transistors which power computers but are made of organic materials instead of silicon because organic materials absorb gases from ambient air. The films developed at UCSD can identify peroxides; peroxide sensing is critical for the detection of improvised explosive devices (IEDs) as well as sterilization of surgical equipment, pharmaceutical supplies, and bio-decontamination. Using an array of organic sensor films, more exotic compounds can be detected including nerve agents and volatile organic compounds which are important in mold sensing. The project provides excellent training opportunities to graduate and undergraduate students in a scientific area of great significance to US national security.

NSF化学部的分析和表面化学项目支持加州大学圣地亚哥分校（UCSD）的Kummel教授的研究项目。Kummel教授和他的学生研究了爆炸分子如何吸收到有机薄膜上并改变其电特性;电特性的变化用于检测爆炸分子的存在，从而创建传感器。 传感器类似于为计算机提供动力的晶体管，但由有机材料而不是硅制成，因为有机材料从环境空气中吸收气体。 UCSD开发的薄膜可以识别过氧化物;过氧化物传感对于检测简易爆炸装置（IED）以及手术设备，药品供应和生物去污的消毒至关重要。 使用一系列有机传感器薄膜，可以检测到更多的外来化合物，包括神经毒剂和挥发性有机化合物，这些化合物在霉菌检测中很重要。 该项目为研究生和本科生在对美国国家安全具有重要意义的科学领域提供了极好的培训机会。