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18 September 2018 Photo Charl Devenish
Students urged to help combat crime
What to do in case of an attack? The UFS taekwondo team taught students a trick or two.
Speaking at the official opening of Safety Week, newly elected Student Representative Council (SRC) president of the Bloemfontein Campus called for students to come to the party in the fight against crime. “We encourage students to participate because it cannot just be the SRC, university management, and the police. Students need to join the Community Police Forum because these platforms are there for us to engage in. You must not die in silence, if there is a problem, raise it,” said Sonwabile Dwaba.

The University of the Free State’s (UFS) Protection Services in collaboration with the university’s BSafe campaign hosted the Safety Week from 3-6 September 2018 on the Bloemfontein and South campuses with the objective of keeping students and staff members informed on the measures in place, addressing pressing safety-related concerns, brainstorm ideas on how to beef up security, and distributing safety souvenirs.

Collaborative efforts encouraged

Brigadier Maehlo Lento, reporting on behalf of the South African Police Service (SAPS) Provincial Commissioner, said: “Robbery incidents have subsided but we still need to make sure that we continue and collaborate with students and all other roleplayers to make sure that we sustain the safety.”

The collective participation sentiment was also reflected by Prof Prakash Naidoo, Vice-Rector: Operations. “We are hoping through our annual Safety Week to reiterate our commitment to the safety of students, as well as bringing all roleplayers together to reflect on areas of cooperation and collaboration in an effort to improve the safety of student.”

Not just physical safety

Issues of mental health were discussed by the Next Chapter student organisation, while Embrace a Sister student organisation spoke about femicide and the safety of women. The scourge of gender-based violence formed the focal point of the Gender and Sexual Equity office’s address. In addition the Student Counselling and Development division offered invaluable advice on where those who exhibit symptoms of depression can seek help.

Other stakeholders who contributed to the success of this year’s Safety Week were the Mangaung Metropolitan Municipality, Department of Police, Roads and Transport, as well as Sector 3 Community Police Forum. 

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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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