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、精确和便携式微化学传感器的需求日益增长，该项目重点开发一种有效的微质谱仪，以积极识别和准确定量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，以增强微型芯片化学实验室tm现有的化学分析能力。本研究将重点评估阵列中微米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造相结合，PI将把这种小型质量分析仪与微型气相色谱仪柱、微热导检测器、表面声波检测器和内部校准单元集成在一起，用于化学和生物传感。更广泛的影响：研究成果将整合到PI开发的两门课程中，以最大限度地发挥研究的影响，即以微加工实验室为特色的本科课程和表面与界面工程的研究生/本科课程。该项目将资助一名女学生攻读博士学位。加州大学洛杉矶分校的本科生，特别是女性，将获得高级研究项目和暑期职位，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。另外，为了提高女学生进入大学后对理工科的兴趣，将通过公团的宣传活动，向女高中生提供暑期实习机会。

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.