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Thabiso Khoeli
Dr Thabiso Khoeli, Lecturer in Historical and Constructive Theology at the UFS, celebrates the completion of his PhD.

The University of the Free State (UFS) celebrated one of its own, Dr Thabiso Khoeli, a Historical and Constructive Theology Lecturer in its Faculty of Theology and Religion, when he received his PhD in Theology with specialisation in religion studies during the recently completed April graduation ceremonies. 

Dr Khoeli’s achievement not only marks a personal milestone but also advances the university’s Vision 130, a strategic initiative to position UFS as a research-led institution by its 130th anniversary in 2034. Dr Khoeli’s academic journey is one of resilience, transformation, and a profound commitment to telling African stories from an African perspective. 

 

From uncertainty to purpose

Dr Khoeli’s path into studying Theology was unplanned. As a former KovsieFootball  player, his initial academic interest was in Sports Science. However, after some admission hurdles, he found himself directed towards Theology, a field that soon captured his full attention.

“Honestly, I did not choose Theology, instead it chose me,” he shares. “… Theology whispered to me and said, ‘Do not deviate, Brother. Your calling is here.” Despite initial scepticism, his first semester revealed the intellectual and spiritual depth of the discipline, compelling him to pursue it with passion.

 

A research focus on African voices

His doctoral research, titled ‘Exploring the Zion Christian Church’s Teachings and Qualities in Comparison with Zion Churches’, examines the theological, historical, and cultural distinctiveness of the Zion Christian Church (ZCC), one of the largest and most influential religious movements in Africa. Motivated by a desire to decolonise theology and challenge externally imposed narratives, Dr Khoeli engaged directly with primary sources, including archival materials and interviews with Church elders.

“Africans must now write their own stories and never rely on the findings presented by others,” he says. His work not only fills critical gaps in theological scholarship but also reflects the UFS’s vision of becoming a centre of thought leadership on the African continent.

 

Research shaping teaching

As a Lecturer in Historical and Constructive Theology, Dr Khoeli’s research directly informs his methods of teaching. He approaches the classroom with a decolonised, historically grounded perspective that helps his students engage with both their spiritual heritage and contemporary realities critically.

“My research enabled me to analyse documents and align them to my objective,” he explains. “That is the strategy I use to collect the relevant reading materials to prepare for the students.” His teaching method fosters independent thinking and encourages students to become scholars who are both academically rigorous and socially conscious.

 

Overcoming challenges through community and conviction

Gaining access to the ZCC’s historical documents was a major challenge. The Church’s deep-rooted secrecy required careful relationship-building and persistent effort. But Dr Khoeli remained undeterred. “I intended to leave no stone unturned,” he says. Through perseverance, mentorship, and faith, he accessed essential material for his literature-based study.

He also credits colleagues at the Faculty of Theology and Religion for their belief in his potential at a time when few others would give him a chance. “It feels great,” he reflects. “I don’t have enough words to explain how overwhelming it feels to prove to yourself that you are the greatest.”

 

A vision beyond the doctorate

With his PhD now complete, Dr Khoeli is setting his sights on further research projects that contribute to the reconstruction of African religious history and knowledge systems. He sees his work as part of a larger mission to revive indigenous spirituality and cultural identity in the face of modern erasure.

“Modernity is converting us to be a nation without roots,” he cautions. His aim is to produce scholarship that restores heritage while also responding to the physical and spiritual needs of African communities, one of the fundamental goals of the UFS’s Vision 130.

 

Inspiring the next generation

To current and future UFS students, especially those considering postgraduate study, Dr Khoeli offers this message, with his own story as proof: “Believe in your purpose, even when the path seems uncertain… There is greatness in you.” 

Through his academic excellence, teaching innovation, and dedication to African-centred research, Dr Khoeli exemplifies the values of the UFS’s Vision 130. His journey reflects a university that is not only committed to high-impact research but also to empowering scholars who bring change, both in the academic world and beyond.

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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