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23 August 2019 | Story Valentino Ndaba | Photo Albert van Biljon
Rolene Strauss
“Each one should test their own actions. Then they can take pride in themselves alone, without comparing themselves to someone else,” Rolene Strauss quoted from Galatians 6:4.
“Are you allowing yourself to be measured by society’s version of the perfect woman? Is that woman called ‘Perfect’ stealing your self-confidence, your potential, your joy, and your life? Are you allowing that measuring tape to measure you and tell you you aren’t good enough? I believe that as women it is time to stand up and say: ‘No, Perfect – you can’t steal my self-confidence.’ ”These were the opening words of the University of the Free State (UFS) Women’s Breakfast guest speaker, Rolene Strauss.

The measuring tape called ‘Perfect’

Making reference to her personal experiences from being a little girl with big front teeth and skinny legs, to growing into a teenager and having her waist measured, and going on to becoming a beauty pageant contestant, a wife, and a mother. Strauss shared the many ways she has been subjected to society’s unattainable standards. “That measuring tape suffocated me. I realised that there has to be more to being a woman than constantly trying to be perfect.”

The Kovsie alumna, medical doctor, entrepreneur and title holder of both the 2014 Miss South Africa and Miss World competitions, spoke to 820 women on the Bloemfontein Campus on 22 August 2019.

On coming together to uplift each other

Strauss also stressed the importance of planting the seeds of confidence in one another. “The quality of yourself as a woman depends on the quality of the women around you,” she said.

Susan van Jaarsveld echoed Strauss’s sentiments. In her capacity as Senior Director of the Department of Human Resources, which is the official host of the UFS Women’s Breakfast, Van Jaarsveld extended a warm welcome to our guest speaker. Borrowing the words of the late American author, Harriet Beecher Stowe, she reiterated that “women are the real architects of society”.

Paying tribute to women of Kovsies

Some former Kovsies who were also celebrated included Gerda Steyn, winner of the 2019 Two Oceans and Comrades ultramarathons; Madam Justice Mahube Molemela, Judge President of the Free State Division of the High Court, Dr Susan Vosloo, South Africa’s first female heart surgeon; Karla Pretorius, player of the 2019 Netball World Cup, Caroline Grace Brüssow, one of South Africa’s top songstresses; and Crystal-Donna Roberts, award- winning actress.

Kovsies continue to walk in the footsteps of excellence to demonstrate respect for the thousands of women who marched to the Union Buildings in Pretoria on 9 August 1956. In the spirit of honouring women of the past, present, and future, Van Jaarsveld reminded all the guests that they were valuable, powerful, and deserved every chance and opportunity in the world to pursue and achieve their dreams.

Rolene Strauss with UFS staff members
Rolene Strauss with UFS staff members
UFS Women
UFS Women's Breakfast
Staff members attending the UFS Women
Staff members attending the UFS Women's Breakfast
Rolene Strauss with UFS staff members
Rolene Strauss with UFS staff members
Rolene Strauss with UFS staff members
Rolene Strauss with UFS staff members
Rolene Strauss with UFS staff members
Rolene Strauss with UFS staff members

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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