Biology Students Win First Place in UGM Cendekia Days Essay Competition with Innovation on Sustainable Electric Nanogenerator

Kotimah, an undergraduate student from the 2022 cohort of the Faculty of Biology, Universitas Gadjah Mada (UGM), secured a remarkable achievement by winning first place in the Essay Competition held during Cendekia Days 2024, organized by UGM’s Cendekia Teknika. Khotimah collaborated with Rahayu Murti Ayuningtyas from the 2022 cohort of the Faculty of Engineering in the ”Biochem” team.


The Cendekia Days Essay Competition is an annual event aiming to promote critical thinking and innovation among students. The 2024 competition carried the theme: “Digital Native, Green Activists: Synergy for a Better Planet.” Participants could choose from sub-themes including energy and the environment, food security, technology and digitalization, creative industries, education, and sustainable development. The event seeks to broaden students’ knowledge in science and technology, foster innovative attitudes, and cultivate their roles as agents of change in advancing green technology for a sustainable future.

The competition, including registration and essay submission, took place from September 21 to October 12, 2024. The finalists were announced on October 26, 2024, with the top eight teams advancing to the final presentation stage on November 10, 2024, followed by the awarding ceremony on November 16, 2024. Among 152 submissions, Team Biochem achieved the highest score during the initial essay evaluation. Team Biochem successfully maintained its leading position and was ultimately awarded First Place.

The Biochem team’s essay focused on the energy and environment sub-theme, presenting their innovative concept of a Sustainable Electric Nanogenerator (SENG). SENG is a groundbreaking green energy solution designed to convert wasted mechanical energy into electricity. The innovation addresses critical environmental challenges, particularly those arising from the hydrodesulfurization process in petroleum refining, which poses significant risks of releasing hazardous per- and polyfluoroalkyl substances (PFAS) into ecosystems. These substances are associated with severe health risks, including cancer, immune system damage, and miscarriages.

The SENG innovation is polymer-based and sulfur-rich, offering three key advantages: economic feasibility, sustainability, and environmentally friendly performance. This breakthrough demonstrates the potential for transformative contributions in renewable energy technologies, aligning with global efforts to address pressing environmental issues.

Author: Kotimah

Biology Student Win Second Place in Biology Scientific Writing Competition with Innovation on Polyethylene Biodegradation Using Bacterial Enzymes

Yogyakarta – Kotimah, an undergraduate student from the Faculty of Biology, Universitas Gadjah Mada (UGM), has once again achieved a remarkable achievement by securing Second Place in the Biology Scientific Writing Competition. The event was themed “Enhancing the Role of Students in Building a Golden Indonesia 2045 through the Synergy of Culture, Innovative Education, and Ethics to Shape a Quality and Integrity-Driven Young Generation.” with sub-themes that aligned with the 17 Sustainable Development Goals (SDGs).


The competition, including registration and essay submission, took place from August 12 to September 25, 2024. The finalists were announced on October 10, 2024, with the top 3 essays advancing to the final presentation stage and awards ceremony on October 17, 2024, at Universitas Siliwangi in Tasikmalaya.

Kotimah’s essays address the global issue of plastic waste, particularly non-biodegradable polyethylene, which constitutes 35% of annual plastic production. With approximately half of all plastic products being single-use items, polyethylene waste contributes significantly to environmental degradation. Its natural decomposition can take over 500 years, during which microplastics form, disrupting ecosystems and accumulating in organisms. Current disposal methods, such as incineration and chemical degradation, often release toxic substances and require costly catalysts, further complicating the issue.

To tackle this challenge, Kotimah developed a novel approach utilizing lipase enzymes from microorganisms to biodegrade polyethylene. These lipase enzymes, sourced from the anaerobic bacterium Pelosinus fermentans, demonstrated the capability to initiate polyethylene biodegradation.

This environmentally friendly solution presents numerous benefits, such as the ability to be mass-produced using renewable resources while remaining non-toxic, effective, and sustainable. By utilizing biological methods, Kotimah’s innovation provides a viable alternative for addressing the environmental challenges posed by plastic waste.

Author: Kotimah

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