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

研究：认识到对高灵敏度、准确和便携式微型化学传感器的需求日益增长，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。这项研究的目标是设计、建模、制造、测试和集成一个微型质量分析仪，以增强芯片上微型化学实验室的现有化学分析能力。这项研究将集中于评估阵列中微计量圆柱形离子陷阱的功能，包括检测灵敏度、选择性、分辨率和质量检测范围。通过将理论分析和实验制作相结合，PI将把这种小型化的质量分析仪与微型气相色谱柱、微型热导探测器、表面声波探测器和内部校准单元集成在一起，用于化学和生物传感。广泛的影响：研究成果将被整合到PI开发的两门课程中，以最大限度地发挥研究的影响，即以微制造实验室为特色的本科课程和表面与界面工程研究生/本科课程。根据这一计划，一名女学生将获得攻读博士学位的资助。加州大学洛杉矶分校将为本科生，特别是女性，提供高级研究项目和暑期职位，让他们从事离子轨迹模拟工作，以帮助他们在学术界或行业的长期职业发展。暑期实习还将通过国际学生联合会设立的外展活动向女高中生提供，以促进女学生进入大学后对攻读理工科的兴趣。

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.