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16 July 2020 | Story Andre Damons | Photo Supplied
Prof Paul Oberholster and Prof Zakkie Pretorius


Two staff members from the University of the Free State (UFS) are nominated for the Science Oscars for their outstanding work and contributions to science over the years. 

Prof Pretorius is nominated in two categories, namely the Special Annual Theme Award: Research and development (R&D) and innovation in Plant Health as well as the Lifetime category.  The Special Annual Theme Awards are made in recognition of the International Year of Plant Health (2020), as declared by the United Nations.

Prof Oberholster is nominated for the NSTF-Water Research Commission Award. This award is for an outstanding contribution to science, engineering, and technology (SET) and innovation in South Africa in terms of sustainable water management, knowledge generation, and solutions over the past five to ten years, and is awarded in recognition of demonstrated leadership and impact.

Science Oscars of South Africa

The NSTF-South32 Awards are referred to as the ‘Science Oscars’ of South Africa and are the largest, most comprehensive, and sought-after national awards of its kind in the country. It was also the first science awards in South Africa.

Prof Oberholster says it is a privilege to be nominated and selected as a finalist in his specific field of interest.
“I always believe the best person will win the award. At this level of competition, it can go both ways. I was nominated by the university for my scientific contribution to water resource management in South Africa over the past 10 years, with special reference to the field of passive wastewater treatment,” says Prof Oberholster.

Although this is the first time that he has been nominated for the NSTF-Water Research Commission Award, Prof Oberholster has previously been nominated in the Innovation category.

Prof Oberholster, whose research focus area is the use of freshwater algae to treat acid mine drainage or domestic wastewater, has previously also won the Excellence Award: CSIR:NRE Outstanding team contribution: Project Leader: Coal tech, WRC and SANBI, Wetland restoration project; and the Excellence Award: CSIR:NRE Innovation: Algae technology for sewage treatment in South African rural areas.

Innovative technology 

This innovative, low-cost green technology assists in the effective and efficient removal of nutrients and bacteria in effluents discharged from wastewater treatment works to improve human health risk, create economic opportunities, and protect downstream ecosystem services. This technology is currently being rolled out to other SADC countries by the African Development Bank. In the case of acid mine drainage treatment, the technology provides a ‘walk-away’ solution for the mining industry. These systems are largely self-sustainable, using no electricity or chemicals, and can be maintained by a semi-skilled workforce.

Prof Pretorius, who has extensive expertise in diseases of field crops – more specifically the rust diseases of small grain cereal crops, has recently been awarded Honorary Membership by the Southern African Plant Breeders’ Association (SAPBA). His colleague, Prof Liezel Herselman, Associate Professor in the Department of Plant Sciences, was presented with a Fellow Award.

• A new, specially arranged virtual Awards Gala Event will be livestreamed on Thursday, 30 July 2020 at 18:45 for 19:00 until 20:30 to honour the finalists and announce the winners.

News Archive

Champagne and cancer have more in common than you might think
2013-05-08

 

Photo: Supplied
08 May 2013

No, a glass of champagne will not cure cancer....

…But they have more in common than you might think.

Researchers from the Departments of Microbial Biochemical and Food Biotechnology, Physics and the Centre for Microscopy at the University of the Free State in South Africa were recently exploring the properties of yeast cells in wine and food to find out more of how yeast was able to manufacture the gas that caused bread to rise, champagne to fizz and traditional beer to foam. And the discovery they made is a breakthrough that may have enormous implications for the treatment of diseases in humans.

The team discovered that they could slice open cells with argon gas particles, and look inside. They were surprised to find a maze of tiny passages like gas chambers that allowed each cell to ‘breathe.’ It is this tiny set of ‘lungs’ that puts the bubbles in your bubbly and the bounce in your bread.

But it was the technique that the researchers used to open up the cells that caught the attention of the scientists at the Mayo Clinic (Tumor Angiogenesis and Vascular Biology Research Centre) in the US.

Using this technology, they ultimately aim to peer inside cells taken from a cancer patient to see how treatment was progressing. In this way they would be able to assist the Mayo team to target treatments more effectively, reduce dosages in order to make treatment gentler on the patient, and have an accurate view of how the cancer was being eliminated.

“Yes, we are working with the Mayo Clinic,” said Profes Lodewyk Kock from the Microbial, Biochemical and Food Biotechnology Department at the UFS.

“This technique we developed has enormous potential for cell research, whether it is for cancer treatment or any other investigation into the working of cells. Through nanotechnology, and our own invention called Auger-architectomics, we are able to see where no-one has been able to see before.”

The team of Prof Kock including Dr Chantel Swart, Kumisho Dithebe, Prof Hendrik Swart (Physics, UFS) and Prof Pieter van Wyk (Centre for Microscopy, UFS) unlocked the ‘missing link’ that explains the existence of bubbles inside yeasts, and incidentally have created a possible technique for tracking drug and chemotherapy treatment in human cells.

Their work has been published recently in FEMS Yeast Research, the leading international journal on yeast research. In addition, their discovery has been selected for display on the cover page of all 2013 issues of this journal.

One can most certainly raise a glass of champagne to celebrate that!

There are links for video lectures on the technique used and findings on the Internet at:

1. http://vimeo.com/63643628 (Comic version for school kids)

2. http://vimeo.com/61521401 (Detailed version for fellow scientists)

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