Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
06 February 2025 | Story André Damons | Photo Supplied
Dr Jared McDonald
Prof Jared McDonald, Assistant Dean: Faculty of The Humanities at the University of the Free State, obtained his first National Research Foundation rating in the C2 category.

Obtaining his first National Research Foundation (NRF) rating has been the goal of Prof Jared McDonald, Assistant Dean: Faculty of The Humanities at the University of the Free State (UFS), since 2020 when he was selected for the UFS Transforming the Professoriate Mentoring Programme.

Prof McDonald obtained a C2 rating recently and credits the programme, under the leadership of Dr Henriëtte van den Berg, who provided invaluable support and mentorship, for this achievement. This rating recognises Prof McDonald as an established researcher and he may enjoy some international recognition for the quality and impact of his recent research outputs. 

“I am delighted to have received a C2 rating. I was hoping to obtain a C2, so when I received confirmation, it felt really good. Since being recruited to the Transforming the Professoriate Programme I have been focused on producing a series of quality journal articles, and importantly, my first monograph. At times it was a struggle to balance the demands of being Assistant Dean in the Faculty of Humanities along with my teaching responsibilities,” says Prof McDonald.

He says obtaining the rating would not have been possible without the interventions of the programme, which assisted him in securing funding for a sabbatical. The encouragement of colleagues and family was equally valuable in helping him to keep his eye on the goal.


Research 

As a nineteenth-century historian, Prof McDonald’s, who is an Associate Professor in the Department of History, research includes topics ranging from the London Missionary Society’s missions to the San as well as the role of controversial missionaries in influencing public discourse on the right to legal equality and social inclusion for indigenous subjects of the British Crown. Another topic is the ways in which evangelical-humanitarian discourse inadvertently provided the justification for the transfer of San children to Cape colonial society. 

“In my publications, the key actors, including Khoesan, are revealed to have been exercising agency in response to a social and political context that was not of their own choosing, but to which they had to respond. The contradictions of the period, coupled with the prospects for blurring the social boundaries of an otherwise strict hierarchical society, provided the means for social manoeuvre and options for resistance from within the confines of the colonial state. I am continuing to explore these ideas in a series of upcoming journal articles and book chapters,” he says. 

The pressure, says Prof McDonald, is already on to retain his rating, and hopefully improve it, when it comes up for review in five years’ time. He is currently working on his second monograph, which is a historical biography of a controversial, but fascinating, missionary who played a notable role in South African history in the early nineteenth century. “The worth of any historical biography lies in the biographer’s ability to shed light on the circumstances, contingencies, and contradictions that shaped the contours of the protagonist’s life, thus illuminating the historical context,” concludes Prof McDonald. 

He seeks to relate his research to his approach to teaching by exploring innovative ways of making the past relevant to students today. This is motivated by the conviction that the elucidation of possibilities of agency in the past raises the prospect for students to engage with the meanings and possibilities of agency in the present.

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
 

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