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17 April 2019 | Story Leonie Bolleurs
Science ambassadors
Friends Tekano Mbonani and Chaka Mofokeng are pursuing graduate degrees in respectively Physics at the University of the Free State (UFS) and Astronomy at the University of the Western Cape. The two got together and decided to reach out to the high school, Leseding Technical Secondary School, where they came from.

It was a full house as more than 120 learners packed the hall at the Leseding Technical Secondary School in the Free State, where two young Astronomy researchers had come home to tell their younger peers about their studies and career prospects across South Africa.

Chaka Mofokeng and Tekano Mbonani are both former learners at the high school. Currently pursuing graduate degrees – for Mbonani in Physics at the University of the Free State (UFS), and for Mofokeng in Astronomy at the University of the Western Cape – the two friends got together and decided to reach out to the high school where they came from.

The event took place in January before schoolwork, tests, and exam preparations are occupying learners’ minds, inviting them to think about the big picture – the future, and how to be part of it. This is timely, because in July last year, the MeerKAT radio telescope was inaugurated in the Karoo. The MeerKAT is the first step to the international SKA telescope project, but it is already one of the best radio telescopes in the world and has placed South Africa firmly on the world map of radio astronomy and engineering.

Building a bridge
“This project enables us to build a bridge between secondary and tertiary institutions. Currently focused on senior secondary students, we aim to promote science through outreach events and activities. Using science and technology-based activities and events, such as stargazing at an observatory or exploring the universe in a planetarium, we want to attract these future secondary graduates. We also provide mentorship, hoping to help them improve their academic performance in matric,” said Mbonani.

For a whole morning, they spoke about their journeys, about science, about the skills that scientists acquire during their studies and all the opportunities such studies open up in an era where the 4th Industrial Revolution is predicted to reduce the number of jobs in many traditional professions. They addressed their peers in both English and Sesotho.

Astronomy in South Africa contributes to critical-skills development. Investing in the MeerKAT, for example, meant that over a thousand bursaries were made available through the SKA South Africa Human Capacity Development programme. Young scientists like Mofokeng and Mbonani have the opportunity to be part of MeerKAT science projects through their studies, using machine learning and other skills that are high in demand in today’s world. This was one of the messages they brought home.

Gaining new skills

“As an Astronomy research student, I have gained skills such as data analysis, mathematical modelling, communication and writing, programming, and teamwork, among others. These are requirements for most companies and institutions. With the unfolding of the 4th Industrial Revolution, such skills sets make young and aspiring scientists the perfect candidates for making the most of future opportunities,” reflected Mofokeng.

Most of the learners said they have never attended a science-outreach event. They were inspired by the young scientists’ stories and nearly half of them said they could see themselves pursuing a career in science. The learners also expressed a strong interest in more events of this kind, as well as mentorship during Grades 11 and 12 from peers at university. They asked about the salaries earned by astronomers, how long the studies take, and where astronomers are working in South Africa.

This initiative, started by two bright young scientists, hopefully marks the beginning of many more events of this kind. Mofokeng and Mbonani are already planning what to do on their next trip home.

News Archive

Link between champagne bubbles and the UFS?
2012-11-16

Prof. Lodewyk Kock with an example of a front page of the publication FEMS Yeast Research, as adapted by F. Belliard, FEMS Central Office.
Photo: Leatitia Pienaar
15 November 2012

What is the link between the bubbles in champagne and breakthrough research being done at the Mayo Clinic in America? Nano research being done at our university.

Prof. Lodewyk Kock of Biotechnology says a human being consists of millions of minute cells that are invisible to the eye. The nano technology team at the UFS have developed a technique that allows researchers to look into such a cell, as well as other microorganisms. In this way, they can get an idea of what the cell’s “insides” look like.

The UFS team – consisting of Profs. Kock, Hendrik Swart (Physics), Pieter van Wyk (Centre for Microscopy), as well as Dr Chantel Swart (Biotechnology), Dr Carlien Pohl (Biotechnology) and Liza Coetsee (Physics) – were amazed to see that the inside of cells consist of a maze of small tunnels or blisters. Each tunnel is about 100 and more nanometres in diameter – about one ten thousandth of a millimetre – that weaves through the cells in a maze.

It was also found that these tunnels are the “lungs” of the cells. Academics doing research on yeast have had to sit up and take notice of the research being done at the UFS – to the extent that these “lungs” will appear on the front page of the highly acclaimed FEMS Yeast Research for all of 2013.

The Mayo Clinic, in particular, now wants to work with the UFS to study cancer cells in more detail in order to fight this disease, says Prof. Kock. The National Cancer Institute of America has also shown interest. This new nano technology for biology can assist in the study and development of nano medicine that can be used in the treatment of cancer and other life threatening diseases. Nano medicine uses nano metal participles that are up to one billionth of a metre in size.

Prof. Kock says laboratory tests indicate that nano medicine can improve the efficacy of anti-cancer medicine, which makes the treatment less toxic. “According to the Mayo Clinic team, nano particles are considered as a gold cartridge which is being fired directly at a cancer tumour. This is compared to fine shot that spreads through the body and also attacks healthy cells.”

“This accuracy implies that the chemotherapy dose can be lowered with fewer side effects. The Mayo Clinic found that one-tenth of the normal dosage is more effective against pancreas cancer in this way than the full dosage with a linkage to nano particles. According to the clinic, this nano medicine could also delay the spread of cancer,” says Prof. Kock.

The nano particles are used as messengers that convey anti-cancer treatment to cancer cells, where it then selectively kills the cancer cells. The transport and transfer of these medicines with regard to gold nano particles can be traced with the UFS’s nano technology to collect more information, especially where it works on the cell.

“With the new nano technology of the UFS, it is possible to do nano surgery on the cells by slicing the cells in nanometre thin slices while the working of the nano medicine is studied. In this way, it can be established if the nano medicine penetrates the cells or if it is only associated with the tiny tunnels,” says Prof. Kock.

And in champagne the small “lungs” are responsible for the bubbles. The same applies to beer and with this discovery a whole new reach field opens for scientists.

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