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02 December 2019 | Story Leonie Bolleurs | Photo Leonie Bolleurs
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Prof Koos Albertyn handing over a donation of eleven microscopes to Anzell Spelding, a teacher at Luckhoff Combined School.

With a donation of microscopes, the Department of Microbial, Biochemical and Food Biotechnology at the University of the Free State (UFS) recently contributed to better quality education for a group of 60 learners in the Life Sciences class at the Luckhoff Combined School.

Anzell Spelding, a teacher at the school – with a newly built science laboratory but little equipment – contacted the department a while ago to enquire whether they have any microscopes available to donate. As the department recently acquired a new set of microscopes for undergraduate teaching in the field of Microbiology, ten fully functional microscopes and two other microscopes (for parts) were donated to motivate the learners to choose science as a career.

“This donation puts scientific instruments in the hands of children at an early age, opening their eyes to the possibility of careers in science. Exposing learners to science at an early age can spark enthusiasm and a love of learning that might otherwise never appear,” said Koos Albertyn, Professor in the UFS Department of Microbial, Biochemical and Food Biotechnology.

“These microscopes will enable learners to look at specimens at a microscopic level and therefore access the wonders of natural science at the tiniest and most fascinating level,” he added. 

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Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17

 

Prof Marian Tredoux
17 September 2013

The latest research conducted by Prof Marian Tredoux of the Department of Geology, in collaboration with her research assistant Bianca Kennedy and their colleagues in Germany, placed established theories regarding how minerals of the platinum-group of elements are formed, under close scrutiny.

The article on this research of which Prof Tredoux is a co-author – ‘Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts’ – was published in Nature Communications on 6 September 2013. It is an online journal for research of the highest quality in the fields of biological, physical and chemical sciences.

This study found that atoms of platinum and arsenic create nanoclusters, long before the mineral sperrylite can crystallise. Thus, the platinum does not occur as a primary sulphur compound. The research was conducted at the Steinmann Institute of the University of Bonn, Germany, as well as here in Bloemfontein.

Monetary support from Inkaba yeAfrica – a German-South African multidisciplinary and intercultural Earth Science collaborative of the National Research Foundation (NRF) – made this research possible. Studies are now also being conducted on other metals in the precious metal group, specifically palladium, rhodium and ruthenium.

The discovery of the nanoclusters and the combination with arsenic can have far-reaching consequences for the platinum mine industry, if it can be utilised to recover a greater amount of platinum ore and therefore less wastage ending up in mine dumps. This will signify optimal mining of a scarce and valuable metal, one of South Africa’s most important export products.

For Prof Tredoux, the research results also prove thoughts she already had some twenty years ago around the forming of platinum minerals. “Researchers laughed in my face, but the evidence had to wait for the development of technology to prove it.” Young researchers were very excited at recent congresses about the findings, since the new models can bring new insights.

“Chemistry researchers have been talking about platinum element clusters in watery environments for quite a while, but it was thought that these would not appear in magmas (molten rock) due to the high temperatures (>1 000 degrees celsius).”

Prof Tredoux has already delivered lectures at congresses in Scotland, Hungary, Sweden and Italy on this research.

Read the article at: http://www.nature.com/ncomms/2013/130906/ncomms3405/full/ncomms3405.html

 

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