My name is Diana Merna. I graduated from the Department of Chemistry, Faculty of Science and Technology, Nusa Cendana University in Kupang. Currently, I am pursuing my studies at Airlangga University in the Chemistry program, specializing in Analytical Chemistry. My decision to study at Airlangga University was based on the excellent reputation of the campus and the detailed examination of each subject and course offered each semester. In addition to the courses, I have reviewed recent publications from the Department of Chemistry at Airlangga University focusing on sensor development such as oxygen saturation sensors, biosensors, and others. These publications are highly relevant to my thesis research plans. Therefore, I believe that I will greatly benefit from being supervised directly by experienced supervisors in sensor research.