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25 February 2025 | Story Anthony Mthembu | Photo Kaleidoscope Studios
G20 - 2025
G20 delegates from member countries and other invited guests in attendance at the G20 Research and Innovation Working Group (RIWG) and G20 Initiative on Bioeconomy (GIB) meetings and other side events.

Against the backdrop of the upcoming G20 Summit to be hosted by South Africa in November 2025, the University of the Free State (UFS) – in partnership with the Department of Science, Technology and Innovation (DSTI) – held the G20 Research and Innovation Working Group (RIWG) and G20 Initiative on Bioeconomy (GIB) meetings on 23 and 24 February 2025.

In her opening address to G20 delegates from member countries, national and international knowledge partners, members of the Free State provincial government, and representatives of the DSTI, Prof Hester Klopper, Vice-Chancellor and Principal of the UFS, indicated, “It is an honour for the UFS to be among the few South African universities to host this essential Research and Innovation Working Group.” In addition, she highlighted that the deliberations and discussions set to take place during this important workshop can set in motion chains of events ultimately contributing to improved lives for everyone. These sentiments were also echoed by Prof Blade Nzimande, Minister of Science, Technology and Innovation, who underscored the importance and historic nature of the upcoming G20 Summit.

In his virtual address, Minister Nzimande explained that South Africa’s chosen theme for the G20 Summit – Solidarity, Equality and Sustainability – was inspired by the general complexity of our time, “in particular the transnational nature of these complexities, such as conflict, the displacement of people, poverty”, among other things. As such, he expressed that in this case, cooperation among nations is becoming increasingly essential.

As they concluded their addresses, Prof Nzimande and Prof Klopper, wished the delegates well in their deliberations. ‘’May your discussions be successful, and your goals be achieved. And may your time with us lead to a renewed experience of the value of innovation through connection, ‘’expressed Prof Klopper.

 

Contributing events

As part of the programme at these proceedings, several side events took place. These included panel discussions with indigenous knowledge holders such as Telle Hoeses, Chief Language Practitioner for Khoi and San Languages, along with experts of indigenous medicine. The conversation focused on indigenous knowledge systems (IKS) and some of the key concerns and progress that these knowledge holders have made in the space. In addition, these knowledge holders, many of whom are business owners who sell products made from indigenous medicines, also had the opportunity to exhibit their products. According to Dan du Toit, Deputy Director-General: International Cooperation and Resources at the DSTI, these panel discussions with young people, bioeconomy researchers, and indigenous knowledge holders were an opportunity to gain access to a diversity of voices, which would not normally find expression in formal meetings. “It is also an opportunity for our international guests to get insight into who we are as a country and what some of our concerns might be,” said Du Toit.

One of the highly anticipated side events on the programme was the joint G20 RIWG and GIB event titled ‘UNESCO Women and Girls in Science’, which took place on 25 February 2025. The event took the form of a round-table discussion, in an attempt to answer the question: Based on your experiences in various roles within higher education in South Africa, Africa, and globally, what are some key insights regarding the role of universities in closing the gender gap in STEM, specifically concerning professional development and creating supportive research environments where everyone, especially women, can thrive?

Prof Anthea Rhoda; Deputy Vice-Chancellor: Academic at the UFS, was one of the contributors in this session. In response to the question, Prof Rhoda highlighted, “Universities should also be spaces characterised by intellectual freedom and freedom of expression, where archaic ideas about male superiority and patriarchy can be openly confronted and contested, without fear of victimisation. She expressed that an active way in which the UFS has committed itself to a culture of diversity and inclusion is through Vision130.

As she was wrapping up her address, Prof Rhoda also highlighted, “To address areas of underrepresentation of women in senior academic and leadership positions within the university, a Working Group on Gender Parity in Academic Leadership was established, with the critical mandate to drive attitudinal shifts, advocate for changes where necessary, and highlight barriers to women’s advancement.”

 

The programme comes to an end

The last day of the programme was reserved for comments, reflections, and discussions on deliverables. As such, there were positive responses to the way the deliberations took place. In fact, Hoese, speaking in her capacity as an indigenous knowledge holder, said, “This was a good platform for us to make progress towards language recognition and officialisation.”

News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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