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15 April 2023 | Story Gerda-Marié van Rooyen | Photo Two Oceans Marathon Twitter
Gerda Steyn  winning the 2023 Two Oceans Marathon
Former UFS student, Gerda Steyn, made history this weekend – she is the first woman to win the Two Oceans Ultra Marathon four consecutive times.

Kovsie alumna Gerda Steyn provided much jubilation on Saturday 15 April 2023, as she became the first woman to win the Two Oceans Marathon four consecutive times. Steyn, who represented South Africa in the 2020 Summer Olympics held in Tokyo, Japan, in 2021, improved her personal best by finishing the race 39 seconds faster than her winning time in 2022.

Shortly after her fourth win in the 56 km race, Steyn told media that the desire to inspire girls kept her motivated during the race. “I thought of all the girls watching (the race) with their parents and seeing a woman who looked like everyone else winning this big race.” The former University of the Free State (UFS) professional athlete managed an average pace of 3:45 minutes per kilometre. Steyn proved that hard work pays off, as she finished 14th at the Two Oceans Ultra Marathon in 2016. Her first-ever first place at this race was in 2018, and again in 2019 and 2022 – the marathon was cancelled in 2020 and 2021 due to the COVID-19 pandemic.

Proving that she not only has golden feet but a heart of gold too, she pledged to donate some of her bonus money towards the development of athletes living in Muizenberg shortly after she won the Two Oceans in record time in 2022. A true example of perseverance and hard work, she also won the Comrades Marathon in 2019, and finished seventh in the London Marathon in 2020. 

Prof Francis Petersen, Rector and Vice-Chancellor of the UFS, says that Gerda is an embodiment of focus and determination. “I am so proud of her. The UFS is truly the home of champions, as can be seen by the achievements of Olympic track athletes Wayde van Niekerk, Louzanne Coetzee, and champions in many other sporting codes.”

Saturday’s Two Oceans Marathon saw Ethiopian-born Amelework Fikadu Bosho finish second in the women’s race – crossing the finish line 12 minutes after Steyn – with Carla Molinaro from Britain in the third position. Approximately 10 000 athletes entered the race, starting at the Newlands Stadium and ending on the University of Cape Town's campus.

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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