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10 November 2023 | Story Ouma Ngoepe | Photo SUPPLIED
Liezl Geldenhuys (ZZ2), Mellisa Pringle (Lasec), Ouma Ngoepe (CMBG), Prof Maryna de Wit (SFSD), Dr Mariana Erasmus (CMBG), Bernadine Taljaard (ZZ2), Khezwo Nematshema (SFSD), Shahiëda Cloete (SFSD), Jan Andries Viktor (SFSD), Vuyelwa Nkoi (SFSD).
Liezl Geldenhuys (ZZ2), Mellisa Pringle (Lasec), Ouma Ngoepe (CMBG), Prof Maryna de Wit (SFSD), Dr Mariana Erasmus (CMBG), Bernadine Taljaard (ZZ2), Khezwo Nematshema (SFSD), Shahiëda Cloete (SFSD), Jan Andries Viktor (SFSD), Vuyelwa Nkoi (SFSD).

The Centre for Mineral Biogeochemistry (CMBG) at the University of the Free State (UFS) was part of another successful Tritech National Science and Technology Fair 2023 – an exciting STEM (Science, Technology, Engineering, and Mathematics) research competition.

The UFS has partnered with Tritech and other sponsors since 2021 to bridge the gap between high school and tertiary education. Tritech, which started in 2008 and is open to all Grade 7-12 learners, aims to equip them for tertiary education by introducing them to scientific research and incorporating modern technology in research. This is an annual competition that starts at the regional level and goes all the way to the national level, with the national competition held at the Merensky High School, in Tzaneen, Limpopo from 20-21 October 2023.

Schools from across the country take part in the fair, but learners compete in groups rather than schools. 

Every year the Tritech Nationals are divided into four main activities over the weekend: 
  1. On the Friday afternoon the learners present their STEM projects in which they have identified a problem in a community, do research to find a solution, do experiments to test if the solution will solve the problem, then test the solution in the community, and lastly, present their findings to a group of judges and learners in similar fields. Fields include Life Sciences, Engineering and Design, Maths, Science and Technology, Environmental and Social Sciences, Health Sciences and Agricultural Sciences.
  2. Friday evening is usually a fun activity for the learners.
  3. On Saturday morning the learners are exposed to work-related activities that give them insight into professions they could pursue in the science field. This activity is sponsored and presented by the UFS. 
  4. The last activity of the weekend is the prize-giving on Saturday afternoon where the learners get rewarded for the quality of their projects and honour, celebrate, and encourage excellence. 

“Every year the CMBG includes different departments from the UFS in alignment with the theme for the event, to ignite a lasting passion for innovation toward promising careers in the STEM fields. In 2022 the theme for Tritech was “Crime Scene Investigators” and the CMBG team created a very realistic crime scene and laboratory setup to teach the learners about Forensic Science. The learners scored our CSI activity as the best for the weekend and we knew that for the 2023 Nationals, we had our work cut out to do even better,” says Dr Erasmus. 

Learning about food health and safety

This year, Prof Maryna de Wit and her students from the Department of Sustainable Food Systems and Development (SFSD) joined the CMBG team, to introduce learners to food health and safety, food preservation, food systems and development, as well as sensory analyses. 

Island, shipwrecks, and wilderness survival

Dr Mariana Erasmus, Deputy Director of the Centre for Mineral Biogeochemistry (CMBG), spearheads the Tritech team from the UFS. CMBG, as part of its community outreach programme, is not only a sponsor of the event but is also the organiser of the main activity together with another UFS department. 

Dr Erasmus says the theme for Tritech 2023 was “Survival MasterChef”, where for the two activity events, the Tritech learners were “stranded” on an island. This exercise was a great way to promote leadership qualities, encourage creativity and confidence, promote teamwork and active communication, and increase critical thinking in learners, while they got to know more about food health and safety practices.

“It was all island, shipwrecks, and wilderness survival at this year’s event where learners had to survive after being ‘stranded’ on an island. To escape, the learners had to build a boat and while they waited to be rescued, they needed to adapt to island life to survive by preparing healthy meals, as well as preparing meals and drinks to treat dehydration and scurvy,” says Dr Erasmus. 

“During the prize-giving, some of the learners received shadowing opportunities at the UFS and other sponsors to advance their education. Bronze, silver, and gold medals, together with participation certificates, were awarded to other deserving learners.” 

News Archive

Chemistry Department expands its international footprint
2015-10-14

Prof André Roodt

Prof André Roodt from the Department of Chemistry at the University of the Free State has returned from a research visit at the St Petersburg State University in Russia. The research he conducted at the St Petersburg State University is part of a bilateral collaboration agreement between the University of the Free State and St Petersburg State University.

As part of his visit to Russia (from 17 to 28 September 2015), Prof Roodt presented a seminar at St Petersburg State University, and a lecture at the conference titled: International conference on Organometallic and Coordination Chemistry: Achievements and Challenges.

One of the local Russian newspapers quoted Prof Roodt as “world-renowned expert in the study of chemical kinetics and mechanisms of chemical reactions”. His presentation: Are detailed reaction mechanisms really necessary in (applied) organometallic and coordination chemistry' attracted great interest from the St Petersburg chemists.

The bilateral agreement came to life a year ago when the St Petersburg State University chemists won a grant in a competition to create an international research group, the International Laboratory of Organometallic Chemistry. The Laboratory is headed by Prof Vadim Kukushkin of the St Petersburg State University.

In addition to the employees of St Petersburg University, the research group consists of researchers from Portugal, Finland, South Africa, and Azerbaijan. Together, these groups of scientists are working on the problem of non-reactive metal activation molecules. The main theme of the research laboratory is in the catalysis and activation of metal inert molecules which then undergo significant change, and become meaningful to people chemicals, such as drugs.

As part of this initiative, a bilateral collaboration agreement exists between the St Petersburg State University and the UFS (Russian Science Foundation grant 14-43-00017). Students from our university have visited and conducted research at the St Petersburg State University while some of their students visit and research reaction kinetics at the UFS.

Prof Roodt hosted Valeria Burianova, a student from the St Petersburg University. During her visit at the UFS, she learned about response kinetics. A UFS PhD student, Carla Pretorius, joined the group in Russia where she conducted research on the intermetallic rhodium-rhodium interactions for the formation of nano-wires and -plates, with applications in the micro-electronics industry, and a  potential for harvesting sun energy.

The UFS Department of Chemistry extended its international footprint further with three of its students, Mampotsu Tsosane, Petrus Mokolokolo, and Tom Kama, returning from Switzerland after a six-week research visit in the group of Prof Roger Alberto from the University of Zürich. In return, Prof Roodt hosted a Swiss PhD student, Angelo Frei from Zürich, and taught him more about reaction mechanisms.

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