Friday, September 17, 2021, the Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, UNY has held a Webinar Series #1 with the theme "Applications of Chemistry in Life". This activity was carried out with the Lecturers Resignation. A total of 180 participants participated in the activities that carried out online through this Zoom Meeting.

The activity began with remarks by and the Dean of Faculty of Mathematics and Natural Sciences, UNY, Prof. Dr. Ariswan, M.Si. The Lecturers Resignation of the Department of Chemistry Education, FMIPA UNY who has entered his retirement period, was led by the Vice Dean for Academic Affairs and Cooperation of Faculty of Mathematics and Natural Sciences, UNY, Prof. Jaslin Ikhsan, Ph.D. Two lecturers from the field of organic chemistry, namely Prof. Dr. Indyah Sulistyo Arty, MS and Karim Theresih, SU have served for more than 35 years. While serving in the Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, UNY, Karim Theresih, SU conveyed that he had many memorable experiences and conveyed some advice. The ceremony ended with the giving of memento.

The activity was continued with the Webinar Series #1 which presented Prof. Dr. Indyah Sulistyo Arty, MS and Dr. Maya Rahmayanti. Scientific oration delivered by Prof. Dr. Indyah Sulistyo Arty, MS with the title The Role of Chemistry in Living Things. Chemistry is the study of matter and its changes that are closely related to living things, because chemistry is not always about hazardous materials. He also conveyed about the research that had been done while he was a lecturer at the Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, UNY. The second material was delivered by Dr. Maya Rahmayanti, she is an alumnus of the Chemistry Study Program, class of 2000, she is a lecturer in Chemistry at UIN Sunan Kalijaga, Yogyakarta. According to Dr. Maya, the Application of Magnetite Modified Organic Compounds for Environmental Remediation 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.

Thank you Prof. Dr. Indyah Sulistyo Arty, MS who has served for 36 years, and Mr. Karim Theresih, SU who has served for 38 years. Useful knowledge may be a good deed. Meanwhile, through the Webinar Series #1, it is hoped that it will add insight into the application of chemistry in life.