Latest News Archive

Please select Category, Year, and then Month to display items

3MT crowns its 2025 PhD national competition winner

28 October 2025 | Story Andile Mbowana | Photo Supplied

PhD candidates at the 2025 National 3MT Competition, hosted at the University of the Free State.

The University of the Free State Centre for Graduate Support (CGS) hosted the 2025 National Three-Minute Thesis (3MT) Competition on 24 October in the Albert Wessels Auditorium, bringing together some of South Africa’s brightest PhD minds under one roof. The annual event, which has become a highlight on the national academic calendar, challenges doctoral candidates from universities across the country to present their complex research in just three minutes, using language accessible to a non-specialist audience.

This year’s competition drew impressive presentations from top scholars representing various disciplines – from health sciences and agriculture to humanities – all showcasing the depth and diversity of South Africa’s research landscape.

Delivering the keynote address, Prof Vasu Reddy, Deputy Vice-Chancellor: Research and Internationalisation at the UFS, reflected on The Essence of Postgraduate Studies and Success in South Africa. He emphasised that postgraduate research plays a critical role in shaping innovation and addressing the country’s most pressing challenges. “As postgraduates, you represent a powerful tool of transformation, equity, and innovation, and every thesis is a story of resilience and a long journey of research,” he said. Prof Reddy also talked about how “competitions like the 3MT not only celebrate research excellence but also teach scholars how to communicate their ideas to inspire real-world impact,” praising the competition for opening opportunities for postgraduate scholars.

The University of the Free State was represented by two candidates, Rentia du Plessis from the Faculty of The Humanities, who presented her 3MT title, Exploring Instructional Communication Strategic for Holistic Student Development, and Naquita Fernandes from the Faculty of Economic and Management Sciences, with her 3MT title, Triggering Online Review Generation Behaviour.

Other universities, such as the Nelson Mandela University, Unisa, the University of KwaZulu-Natal, the University of the Western Cape, the University of Johannesburg, and the University of Pretoria, were also present.

After a series of captivating presentations, Robinah Nakawunde from Stellenbosch University claimed the top prize. Representing the Faculty of Medicine and Health Sciences, her presentation titled, Cured but Not Healed: Uncovering the Lung’s Struggles after TB, captured the attention of both the judges and the audience. Her research sheds light on how pulmonary tuberculosis continues to affect lung function even after successful treatment, highlighting the need for improved post-TB health-care interventions.

The first runner-up position went to Aaron Harvey from the University of Pretoria’s Faculty of Natural and Agricultural Sciences, whose research explores how avocado plants fight root rot disease using RNA interference mechanisms. His presentation, titled How Avocado Cells Fight Against the Root Rot Disease Caused by Phytophthora cinnamomi, Using RNAi Gatekeepers, impressed the judges with its clarity and scientific depth.

Morgan Lee from the University of Cape Town’s Faculty of Humanities took home the second runner-up prize. Her presentation, Locked In: The Hidden Barriers to Sustainable Agriculture, tackled the challenges facing South Africa’s commercial grain sector in transitioning towards more sustainable practices, offering insights that bridge environmental and social considerations.

The 2025 3MT National Competition once again demonstrated the power of concise, impactful communication in research. As the curtain closed, it was evident that South Africa’s future of research and innovation remains in capable hands, ones that can not only investigate deeply, but also explain passionately

News Archive

Carbon dioxide makes for more aromatic decaffeinated coffee

2017-10-27

The Inorganic Group in the Department of Chemistry
at the UFS is systematically researching the utilisation
of carbon dioxide. From the left, are, Dr Ebrahiem Botha,
Postdoctoral Fellow; Mahlomolo Khasemene, MSc student;
Prof André Roodt; Dr Marietjie Schutte-Smith, Senior Lecturer;
and Mokete Motente, MSc student.
Photo: Charl Devenish

Several industries in South Africa are currently producing hundreds of thousands of tons of carbon dioxide a year, which are released directly into the air. A typical family sedan doing around 10 000 km per year, is annually releasing more than one ton of carbon dioxide into the atmosphere.

The Inorganic Chemistry Research Group in the Department of Chemistry at the University of the Free State (UFS), in collaboration with the University of Zurich in Switzerland, has focused in recent years on using carbon dioxide – which is regarded as a harmful and global warming gas – in a meaningful way.

According to Prof André Roodt, Head of Inorganic Chemistry at the UFS, the Department of Chemistry has for the past five decades been researching natural products that could be extracted from plants. These products are manufactured by plants through photosynthesis, in other words the utilisation of sunlight and carbon dioxide, nitrogen, and other nutrients from the soil.

Caffeine and chlorophyll
“The Inorganic group is systematically researching the utilisation of carbon dioxide. Carbon dioxide is absorbed by plants through chlorophyll and used to make interesting and valuable compounds and sugars, which in turn could be used for the production of important new medicines,” says Prof Roodt.

Caffeine, a major energy enhancer, is also manufactured through photosynthesis in plants. It is commonly found in tea and coffee, but also (artificially added) in energy drinks. Because caffeine is a stimulant of the central nervous system and reduces fatigue and drowsiness, some people prefer decaffeinated coffee when enjoying this hot drink late at night.

Removing caffeine from coffee could be expensive and time-consuming, but also environmentally unfriendly, because it involves the use of harmful and flammable liquids. Some of the Inorganic Group’s research focus areas include the use of carbon dioxide for the extraction of compounds, such as caffeine from plants.

“Therefore, the research could lead to the availability of more decaffeinated coffee products. Although decaffeinated coffee is currently aromatic, we want to investigate further to ensure better quality flavours,” says Prof Roodt.

Another research aspect the team is focusing on is the use of carbon dioxide to extract chlorophyll from plants which have medicinal properties themselves. Chemical suppliers sell chlorophyll at R3 000 a gram. “In the process of investigating chlorophyll, our group discovered simpler techniques to comfortably extract larger quantities from green vegetables and other plants,” says Prof Roodt.

Medicines
In addition, the Inorganic Research Group is also looking to use carbon dioxide as a building block for more valuable compounds. Some of these compounds will be used in the Inorganic Group’s research focus on radiopharmaceutical products for the identification and possibly even the treatment of diseases such as certain cancers, tuberculosis, and malaria.

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept