Latest News Archive

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

From UFS to Princeton University

19 September 2019 | Story Amanda Thongha | Photo Charl Devenish

Attaining his master’s degree cum laude, completing a PhD degree, and publishing in top academic journals, University of the Free State (UFS) academic, Dr Victor Gwande, has been an outstanding researcher throughout his career.

Adding to his list of notable achievements, the postdoctoral research fellow in the International Studies Group has just been awarded a fellowship at Princeton University, one of the top universities in the world. The US institution was recently ranked sixth in the Times Higher Education World University Rankings 2020.

As a fellow of the Institute for Advanced Study at Princeton, Dr Gwande will spend two weeks on the Ivy League university’s New Jersey campus in 2020. This will be followed by a weeklong session at one of two collaborating institutions in South Africa and the US, with continuous communication facilitated among selected scholars throughout a two-year period.

Flying high the flag of the African academy
Dr Gwande believes the fellowship will expose him to new intellectual traditions and perspectives. “It will help me create international academic networks across continents, as I seek to put my name out there as an internationally recognised scholar.”

With his research interests in economic and business history of Southern Africa, Dr Gwande says he wishes to become “a great scholar of African economic history, flying high the flag of the African academy, as well as training and producing young scholars for the academy”.

Working with some of the world’s top minds at Princeton University, there will be much to focus on.

“I will be researching, writing, and presenting my research project in which I use the case study of the Anglo American Corporation to look at the histories of capitalism and to understand how monopoly capitalism shaped economic trajectories of Zimbabwe and the broader Southern African region.”

Longer-term plans include completing his monograph stemming from his PhD thesis.

There are many people to thank for his journey from the UFS to Princeton, and the scholar draws attention to some of those who have influenced him.

“God and my family. But in my career, quite a number of people and institutions have really moulded me; the International Studies Group under Prof Ian Phimister has given me an environment to flourish in my young career.

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

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