International Invention Competition for Young Moslem Scientists (IICYMS 2021), held on 1–4 July 2021. IICYMS 2021 is an international scientific work competition organized by the Indonesian Young Scientist Association in collaboration with the State Islamic University of Sunan Gunung Djati, Bandung. This year IICYMS was attended by 155 teams from 13 countries, namely Indonesia, Turkey, Yemen, Egypt, Iraq, Macedonia, Pakistan, Malaysia, Azerbaijan, Qatar, Kazakhstan, Morocco, and India and was held online via Zoom Cloud Meeting. As for the jury from three countries, namely Indonesia, Malaysia, and Turkey. IICYMS 2021 opens on July 1, 2021, followed by presentation of works on July 2 - 3, 2021 and closes with an awarding ceremony on July 4, 2021.

Three students majoring in chemistry education collaborated with students majoring in English education, Yogyakarta State University participated in the IICYMS 2021 competition. Faiz Ilham Pratama (Chemical Education 2018), Dwi Nurul Fajriah (Chemistry 2019), Fiyola Mayangsari (Chemistry 2019), Fadila Nafiri Arif and Eka Nurrohmah R (English Education, 2019) submitted a proposed work entitled Nano Biopesticide Formulation of Neem (Azadirachta indica) Leaf Extract as an Alternative Effort to Control Leaf Borer. They got the idea based on problems about plant growth and development that cannot be avoided from pests, such as leaf borers. Various efforts have been made to control these pests, for example by using synthetic-based pesticides. However, synthetic pesticides pose problems for the environment such as causing poisoning to humans, destroying non-target organisms, pest resistance, and can pollute soil and water. So that one of the alternative pest control efforts is to use nanotechnology to make biopesticides. Nanotechnology offers several positive effects when used as pesticides, such as reducing toxicity, increasing shelf life, and increasing the solubility of pesticides that are difficult to dissolve in water. Neem leaf (Azadiracha indica) is one of the plant leaves that has the ability to control leaf borer pests. Through research with literature studies, it is hoped that this can be used as an alternative solution that helps farmers in controlling leaf borer pests using organic materials provided from nature.

The work submitted by the collaboration team of chemistry and English students won a silver medal in the environmental science category in IICYMS. Hopefully, the achievements achieved by these students can be used as a valuable experience and motivation for other students in their work.