Growing up in the Cape Town township of Mfuleni, a career in science felt light years away, says Sibulele Tonisi. But last week (Tuesday, 24 March) he graduated from Stellenbosch University (SU) with a master’s degree in biochemistry.

He hopes his journey will inspire other young people from similar communities to believe in their ability to succeed.

Tonisi first developed a curiosity in science while attending Mfuleni High School. “Looking back, the foundation for my interest in biological research was already being laid,” he reflects. Fascinated by life sciences, this interest was further fuelled by the TV programme Body Bizarre. Watching scientists and surgeons collaborate to solve complex medical challenges inspired him to contribute to scientific discovery.

He went on to study human life sciences at SU, majoring in biochemistry and physiology. He chose SU due to its reputation for academic excellence and its proven track record of cultivating well-rounded, skilled graduates.

During his honours year, he was introduced to research in the laboratory of Prof Donita Africander focusing on understanding the molecular mechanisms of progestins used in contraception. 

His research topic resonated with him on a personal level, he explains, as some of his family members use contraception without always being aware of potential side effects. Under the supervision of Africander, and with financial support from the SU Postgraduate Scholarship Programme and top-up funding from the National Institutes of Health, he embarked on his master’s degree in 2024.

However, delayed bursary payments during his honours year led to financial challenges. Despite periods without any money, Tonisi remained focused and determined to complete his degree within the 2-year timeframe.

He credits his MSc achievement to perseverance and the encouragement and belief of those around him, especially his mother, who raised him single-handedly after his father passed away before he started school. 

While his mother played the primary role in his upbringing, both his parents had instilled in him, from an early age, the belief that education is the key to success in life. “To my family, friends, teachers, mentors and supervisor who believed in me, I honour your sacrifices, time, and investment in my journey,” he says.

Looking ahead, Tonisi hopes to pursue a PhD, but for now he is seeking employment to gain experience in the working world.