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23 August 2021 | Story Nonsindiso Qwabe | Photo Supplied
Picture: Passionate and strong- Zanele Mbhele
Zanele Mbhele is a third-year BSc student majoring in Chemistry and Botany on the Qwaqwa Campus. At age 22, this young woman from Cornelia, a small town in the Northern Free State, already wears many hats – as a residence assistant, peer mentor for first-year students, and most recently, as a youth lifestyle blogger.

Mbhele launched her website in June. There she writes on topics such as finance, relationships, mental well-being, and fashion, to mention a few. Since its inception, she has attracted traffic from around the country, as well as international parts of the world such as North and South America, China, and different parts of Europe. 

Taking part in poetry has ignited her love for writing and storytelling, and Mbhele says she wants to grow into the many hats she wears and make a name for herself in science, as well as in writing for local and international audiences.

What does being a woman mean to you?
It’s being strong. Seeing opportunities where they are scarce. Being independent. Getting out of your comfort zone.

Which woman inspires you, and why?
It has to be news anchor and TV show host, Tumelo Mothotoane. She is from Limpopo and followed her passion for media in a place where media was not popular. She is hardworking and she believes in herself. She started small and today she is an international news anchor. Another woman who inspires me, is my mother. She was unemployed but because of her love for selling clothes, she was able to provide for us. I didn’t grow up feeling like I’m fatherless, and we were able to have a childhood like other children because of her hard work.

What advice would you give to the 15-year-old you?
I would say, invite God into all your plans. Know that no dream is too big for you. Don’t be scared of failure, because through failure we find ourselves and see our capabilities. Don’t be afraid to start small.

Any advice to anyone who also wants to grow on social media?
Social media has made many things possible. If you’re good at dancing, you can create a TikTok or YouTube account. You don’t even need fancy gadgets anymore. Many places now offer free Wi-Fi, so you can go anywhere and do your thing. Most things are possible today; you don’t have to wait until you have an iPhone. Just start with what you have. I haven’t mastered social media platforms yet and I don’t have any background in website creation, but I am learning and improving. 

What makes you a woman of quality, impact, and care?
I believe I am a woman of quality because I’m goal-driven; a woman of impact because I move beyond fear, step out of my comfort zone, and embrace change; and a woman of care because I care about the well-being of a person. This is evident from my blog. The things I talk about need little to no budget at all, because I understand what it means to be less fortunate, looking for solutions to your problems. 

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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