The Department of Chemistry Education, FMIPA UNY held a Webinar Series #1 and Lecturer Resignation on Friday, September 17, 2021. This activity was carried out online through a Zoom Meeting attended by 180 participants.

The activity began with the discharge of a retired lecturer from the Department of Chemistry, Faculty of Mathematics and Natural Sciences, UNY. The release event was led by the deputy dean for academics and collaboration at the Faculty of Mathematics and Natural Sciences UNY, Prof. Jaslin Ikhsan, Ph.D. The two full-time lecturers who were released were Prof. Indyah Sulistyo Arty who has served in the chemical education department for 36 years and Mr. Karim Theresih, SU who has served for 38 years. Both of them are lecturers with expertise in organic chemistry. The event continued with the giving of impressions and messages by Mr. Karim Theresih, SU who represented a retired lecturer while serving in the chemistry education department, FMIPA UNY. After giving the impression message, it is followed by giving a memento. After the discharge ceremony for the lecturers was completed, it was continued with the Webinar Series #1.

In this webinar, Prof. Indyah Sulistyo Arty, who is one of the full-time lecturers, delivered a scientific oration entitled The Role of Chemistry in Living Creatures. He said that chemistry is the study of matter and its changes which are closely related to living things. Examples are enzymes, fats, secondary metabolites, terpenoids, and alkaloids. In addition, he also conveyed about the research that he had carried out during his profession as a lecturer in the chemical education department of the Faculty of Mathematics and Natural Sciences, UNY.

After Prof. Indyah Sulistyo Arty finished delivering his oration, the activity continued with the delivery of material by Dr. Maya Rahmayanti, who is an alumni of the Chemistry study program class of 2000 and is a lecturer in Chemistry at UIN Sunan Kalijaga, Yogyakarta. Dr. Maya conveyed about Application of Magnetite Modified Organic Compounds for Environmental Remediation. He said that the use of modifications using magnetite is important because: (1) it produces SPE (Solid Phase Extraction), (2) produces nanoparticles because there are macromolecular compounds, and (3) improves stability because organic compounds are unstable at high pH. Dr. Maya also conveyed about the methods of synthesizing magnetite nanoparticles, namely: (1) reverse coprecipitation, (2) sonochemistry, (3) microemulsion, and (4) solvothermal. Through this activity, it is hoped that it will contribute to increasing public insight and knowledge, especially about the role of chemistry in living things and the environment.