Design and Integration of a Cylindrical Ion Trap Array for a Micro-Total-Chemical-Analysis System

研究：认识到对高度灵敏、准确和便携式微型化学传感器的需求日益增加，该项目侧重于开发一种有效的微型质谱仪，以积极识别和准确量化低浓度的化学和生物试剂。 该研究的目的是设计，建模，制造，测试和集成一个微型质量分析仪，以增加现有的化学分析能力的微型ChemLab芯片TM。 本研究将集中于评估阵列中的微米计量圆柱形离子阱的功能，包括检测灵敏度、选择性、分辨率和质量检测范围。 通过理论分析和实验制作相结合，PI将把这台微型质量分析仪与微型气相色谱柱、微型热导检测器、表面声波检测器和内部校准单元相结合，用于化学和生物传感。更广泛的影响：研究成果将被整合到PI开发的两个课程中，以最大限度地发挥研究的影响，即，一个以微加工实验室为特色的本科课程和一个关于表面和界面工程的研究生/本科课程。 该方案将资助一名女学生攻读博士学位。℃下 高级研究项目和暑期职位将提供给加州大学洛杉矶分校的本科生，特别是女性，从事离子轨迹模拟工作，以帮助他们在学术界或工业界的长期职业发展。 还将通过公共信息学院开展的外联活动向高中女生提供暑期实习机会，以促进女生在进入大学后对科学和工程专业的兴趣。

Research:Recognizing the increasing need for highly sensitive, accurate and portable micro-chemical sensors, the project focuses on developing an effective micro- mass spectrometer to positively identify and accurately quantify low concentrations of chemical and biological reagents. The objective of the research is to design, model, fabricate, test, and integrate a miniature mass analyzer to augment the existing chemical analysis capability of a micro-ChemLab-on-a-chipTM. This research will focus on assessing the functionality of micro-metered cylindrical ion traps in an array, including the detection sensitivity, selectivity, resolution, and mass detection range. By combining theoretical analysis and experimental fabrication, the PI will integrate this miniaturize mass analyzer with a miniature gas chromatograph column, a micro- thermal conductivity detector, a surface acoustic wave detector, and an internal calibration unit, for chemical and biological sensing.Broader Impact:The research outcome will be integrated into two courses developed by the PI to maximize the impact of the research, i.e., an undergraduate course featuring a Micro-Fabrication Laboratory and a graduate/undergraduate course on Surface and Interface Engineering. One female student will be supported under this program to pursue her Ph.D. degree. Senior research projects and summer positions will be offered to undergraduate students at UCLA, especially women, to work on ion trajectory simulation to help their long-term career development in academia or industry. Summer internships will also be offered to female high school students through the outreach activities established by the PI to promote the interest of female students in pursuing science and engineering when they enter college.