(166am) Development of Novel Experimental Modules for Introducing Students to Nanoparticle Characterization Methods

Applications of nanoparticles in chemical and biomedical industries have been rapidly increasing in the recent years. The need to educate and prepare the students for this changing scene is increasing as well. Although new demands in skills have been met with efforts to introduce students to nanotechnology, most current efforts have focused on nanoparticle synthesis. Nanoparticle characterization, while equally important, has received far less attention. In this work, we have developed multiple nanoparticle characterization experiments to be performed as part of a newly developed “Nano and Biointerfaces” course. The aim is to introduce students of upper undergraduate level as well as graduate students in chemical engineering to various nanoparticle characterization techniques, including dynamic light scattering, scanning and transmission electron microscopy, BET surface area adsorption, and Fourier Transform InfraRed (FT-IR) Spectrometry. The underlying theory for each technique was introduced to students and students were asked to perform the experiments in coordination with the course teaching assistant or instrument technicians. To follow an inquiry-based approach, the properties of nanoparticles were not revealed to students prior to performing the experiments. The experimental modules were designed so that students can characterize nanoparticle composition, size, morphology, and surface area. The obtained results were presented in class by students followed by a discussion on the accuracy of their findings and comparison with the certificates of analysis for particles. Student laboratory memos and class presentations, a question in the final exam, and a student survey were the main methods of assessment. These educational activities can be improved by incorporating team-based assessments and evaluation of students’ performance in teams.