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24 March 2020

#UFSupdate (18 March 2020): UFS IMPLEMENTS MEASURES TO MINIMISE RISK OF COVID-19 TO STAFF
STATEMENT BY PROF FRANCIS PETERSEN, RECTOR AND VICE-CHANCELLOR

The executive management of the University of the Free State (UFS) welcomes the announcement of Dr Blade Nzimande, Minister of Higher Education, Science and Technology on 17 March 2020 that all post-school training institutions will have an early recess, starting on 18 March 2020. The Minister’s directive that universities should minimise risk of COVID-19 to all its staff during this time is also welcomed.  

The announcement of Dr Nzimande is in line with the university’s decision on 16 March 2020 to suspend the academic programme as from 17 March 2020 and to resume it again on 14 April 2020.

It is important for us all to know that this is not business as usual, and that different  thinking is required. Responsible citizenship is one of the crucial elements the world has increasingly been experiencing for the past few weeks. This is why we must act out our responsibility towards one another by focusing on ways in which social distancing can be achieved – especially during this low-risk period that South Africa is still experiencing. This is one of the reasons that informed the university’s decision on 16 March 2020 week to suspend the academic programme and also for students to vacate the residences by 20 March 2020.

The health and well-being of our staff members are equally important. The university’s Employee Task Team that was established on 16 March 2020 analysed options for the continuation of university operations during the recess period. These options were submitted to the executive management, discussed with the Chairperson of the UFS Council and approved on 18 March 2020.

Staff members who have children at school and pre-school may work from home on 19 and 20 March 2020. For the period 23 March 2020 to 13 April 2020, the number of staff members present on all three campuses will be reduced to a minimum and staff members may be allowed to work from home where practically possible.

Arrangements have been made to accommodate those staff members who are performing services which cannot be done from home (such as cleaning, gardening, maintenance, sports, etc) in a flexible and reasonable way. Similar arrangements will be made with office-based support services staff, prioritising institutional needs and based on humane and personal circumstances. Academic staff have been requested to ensure that the online learning materials are finalised and made available for the online learning platform.

The decision for employees to work from home is based on the premise that all employees are deemed to be at work from 23 March 2020 to 13 April 2020. This requires staff members to be available and contactable by line managers at all times during the university’s normal working hours.

I am comfortable that these measures will alleviate the concerns from our staff regarding the spreading of COVID-19 and the risk to themselves without compromising university operations.

Prof F W Petersen
Rector and Vice-Chancellor
University of the Free State


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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