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14 April 2025 | Story André Damons | Photo André Damons
Health Sciences Medal winners
Three of the Dean’s medal winners: Celine Taute, Angelique Johnson and Dr Monique Davidson after the graduation ceremony.

It was a big week for the newest University of the Free State (UFS) graduate, Angelique Johnson, who not only graduated with a Bachelor of Medical Science Honours in Pharmacology degree with distinction, but she was also awarded the Dean’s medal in the Faculty of Health Sciences at the university’s April graduation ceremonies.

Only a day before crossing the graduation stage on Friday 11 April, Angelique was also awarded the UFS Faculty of Health Sciences floating trophy for achieving the best results in respect of a bachelor honours degree in the faculty. 

“It’s honestly an honour. Receiving the Dean’s Medal feels surreal — it’s a reminder that the effort I put in didn’t go unnoticed. It’s also motivating and makes me feel proud to represent my faculty in such a positive way.

“Graduating with distinction feels incredibly rewarding — it’s a validation of all the late nights, hard work, and perseverance. Achieving this required discipline, time management, and a genuine passion for the material. I also leaned on a strong support system and made sure to stay consistent throughout the academic year,” says Angelique.

 

Dean’s Medal winners

The Dean’s medal was also awarded to Celine Taute, Alexander van Wyk and Dr Monique Davidson who all graduated last year. Taute, who graduated with a Bachelor of Medical Science with specialisation in Radiation Sciences degree (obtained with distinction), was awarded the Dean’s medal for achieving the best results as a third-year student. Van Wyk graduated with Bachelor of Biokinetics degree with distinction and received the Dean’s medal for achieving the best results as a fourth-year student while Dr Davidson received was awarded for obtaining the best results as a fifth-year student. 

Dr Davidson graduated with the degree Bachelor of Medicine and Bachelor of Surgery with distinction. Just like Johnson, Dr Davidson, Taute and Van Wyk was also awarded the faculty’s floating trophy for achieving the best results in their respective study years at Thursday’s (10 April 2025) prize-giving ceremony. 

 

Driven by passion 

According to Angelique, she will now pursue an MBChB degree as her passion for medicine drives her to go beyond simply making small changes — she wants to create a meaningful, lasting impact. “To borrow and adapt the words of Prof Gert van Zyl, Dean of the Faculty of Health Sciences, I don’t just aim to create ripples or waves in the field of healthcare — I aspire to create a tsunami of positive change in people’s lives and in the medical profession.”

In 2023 she completed a BSc in Human Physiology (cum laude) from the University of Pretoria (UP). She decided to enrol for an Honours in Pharmacology degree after developing a strong interest in how the body responds to different substances, especially at the cellular and molecular levels.

“Pharmacology felt like a natural extension of that curiosity — it dives deeper into the mechanisms of drug action and how they can be used to treat disease. I wanted to better understand how physiological processes can be manipulated for therapeutic benefit, and pharmacology offered the perfect balance between science and real-world medical application,” she concludes.

 

Provide comfort 

According to Celine, both the Dean’s medal as well as the awards came as a big surprise because she did not set out to achieve them. “I feel immensely blessed and thankful. Things that are worth it, require some sacrifices.” 

“I am so grateful. I set out to do my best and trusted that God would sort out the details. Discipline and hard work were key in my success. A person is not an island, so having family that always believed in me even when I didn't, helped me get through those tough exams,” says Celine. 

Celine, who is currently busy with an honour’s degree whereafter she will embark on a two-year internship, says she chose to specialise in radiation as she wanted to provide comfort and education to the mostly cancer patients and their families who radiation treatment can help.

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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