RUI: Acquisition of Scanning Electron Microscope

诺克斯学院申请资助一台新的扫描电子显微镜（SEM），以取代我们已有14年历史的模型，该模型不能满足教师当前的研究需求，而且零件越来越少。L. Dybas，首席研究员，将利用扫描电镜进行虹吸管免疫学的研究，重点研究虹吸管腔胚细胞的结构和功能；虹吸管对高温（热休克）、损伤和再生的响应并在她对蛹甲虫的研究中进行了分类学和形态学研究。M. Brodl，在他对大麦糊粉层热休克反应的研究中，将使用扫描电子显微镜来表征内质网在热休克、恢复和耐热性期间的反应。大麦的反应是比较其他植物、无脊椎动物和高等动物反应的模型系统。B. Kooser将在化学修饰二氧化硅的自旋标签研究中使用扫描电子显微镜。EPR光谱显示了二氧化硅表面改性后的行为变化。改变后的二氧化硅的扫描电镜观察是必不可少的，以确认表面改性。扫描电镜也将不可或缺的入门项目为基础的课程，在电子显微镜。一个研究级的扫描电镜将允许学生获得出版质量的数据，无论是自己或与教师共同研究。

Knox College requests funding for a new scanning electron microscope (SEM) to replace our 14-year-old model that does not meet the current research needs of the faculty, and for which parts are getting scarce. L. Dybas, principal investigator, will use the SEM for her studies on sipunculan immunology, focussing on the structure and function of sipunculan coelomocytes; on the responses of sipunculans to elevated temperature (heat shock), wounding and regeneration; and for taxonomic and morphologic studies in her research on ptiliid beetles. M. Brodl, in his studies on the heat shock response in barley aleurone layers, will use the SEM to characterize the response of the endoplasmic reticulum during heat shock, recovery, and thermotolerance. The response in barley is a model system for comparing responses in other plants, invertebrates and higher animals. B. Kooser will use the SEM in his spin label investigations sing chemically modified silica. EPR spectra display behavioral changes as the silica surface is modified. SEM observations of the altered silica are essential to confirm the surface modification. The SEM will also be integral to an introductory project-based course in electron microscopy. A research-level SEM will permit students to obtain publication- quality data either on their own or as co- researchers with faculty.