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25 February 2022 | Story Anthony Mthembu | Photo Victor Ramphore Mahlohla (baddapictures)
Inaugural Dreamwalk 2022
The inaugural dream walk put students in high spirits for the rest of the year, as they were able to express and celebrate their dreams and aspirations.

The inaugural dream walk at the University of the Free State took place on the Bloemfontein Campus on 19 February 2022. The dream walk, also referred to as ‘Leeto la ditoro’, will become an annual event where first-year students come together to express and celebrate their dreams and aspirations. 

The event was well attended by Bloemfontein Campus first-year students, who believe that the event is a great way to set the tone for the rest of the year. The students first gathered at a station on campus, where they were issued with a faculty T-shirt, key chain, a dream card, and a mask. The official walk then began from the Visitor Centre Gate on the northwest side of the Bloemfontein Campus to the Main Building, where members of the senior leadership are based.
During the walk, first-year students had to write down their dreams and aspirations on the dream card, which they ultimately placed in a box at the Main Building. “I found it amazing to be able to put my dreams on paper; it makes them more realistic,” highlighted Marise Prinsloo, a first-year student from the Outeniqua residence. Although some of the aspirations were too personal for some first-year students to speak about, others’ aspirations varied from academic success, spiritual wellness, and mental and physical health. In fact, Malcolm Willemse, who is also a first-year student from Outeniqua, hopes to secure a number of leadership positions. “I have dreams of being in the first-year committee and of being in the sub-committees, and I managed to write these down,” he shared. 

In addition, the atmosphere at the event was vibrant, as the students were excited to engage with one another. “It was amazing to walk with other residences such as Villa Bravado, Abraham Fischer, and Conlaurês, as they have great spirit,’’ expressed Willemse. The walk included songs from the various residences, and the first-year students were dancing and singing along. However, the fun did not end there. Once the students arrived at the Main Building, they were treated to a DJ who had them dancing and singing even more.

As the dream walk event will also take place on the Qwaqwa and South Campuses, the students on these campuses can expect to take part in a lot of singing, dancing, and other cultural activities. Precious Modiba, who is also a first-year student, argues that besides having a good time, one of the best things about the dream walk is the friends that one gets to make.

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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