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07 November 2019 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Chemistry
Discussing progress in green energy and nuclear medicine during the recent ReMec2, were from the left: Dr Dumisani Kama (UFS), Prof Roger Alberto (University of Zurich), Prof Andreas Roodt (UFS), and Dr Orbett Alexander (UFS).
Scientists in South Africa and Switzerland, with a research collaboration of 20 years, are working together to make a difference. A major focus of their work is nuclear medicine and green energy. 

Since the end of October, 22 speakers from five countries met for five days at four different sites in South Africa to discuss their work during the second symposium on reaction mechanisms, better known as ReMec2. The Department of Chemistry at the University of the Free State (UFS) hosted this event. 

Considerable reduction of carbon dioxide

According to Prof Andreas Roodt, lead researcher from the UFS Department of Chemistry, ReMec2 focused mainly on two projects: nuclear medicine and an R8 million project titled: Solar Light-driven Homogeneous Catalysis for Greener Industrial Processes with H2 (hydrogen gas) as Energy Source and CO2 (carbon dioxide) as C1 Building Block. This is a sunlight-driven project in search of new catalysts, which are chemical compounds that make the reactions faster and more effective, but which are not consumed during the reaction. The aim is to provide greener industrial processes with hydrogen as energy source, and to reduce carbon dioxide in the environment.

This research, if applied, has the probability of preventing the release of more than 100 kg of harmful carbon dioxide for every one kg of hydrogen produced. “Together with the Swiss group, we are at that stage of the research where these compounds, with just one molecule of the catalyst, can make 80 000 hydrogen molecules (very clean energy, as hydrogen in a car's engine burns to clean water; not like gasoline that burns to harmful carbon dioxide),” Prof Roodt explains. 

The UFS and the research group from Prof Robert Alberto at the University of Zurich have been working together on this research for the past twenty years. According to Prof Roodt, they are studying complete reaction mechanisms, including the time profile of how the different chemical compounds are reacting with each other and not just the simple product analysis as studied by most groups in the world. 

International patent on nuclear medicine

In June 2019, they registered an international patent on nuclear medicine model compounds. The patent was granted. During ReMec2, a lecture was presented on this patent, according to which a compound with an imaging isotope [Tc-99m] that has its own ‘X-rays’, can shed light on an affected organ in the human body for doctors to see where medicine should be administered. The same compound also contains the medicine to treat the disease. 

The work of these scientists is 100% in line with South Africa’s National Development Plan and it supports the UFS Strategic Plan. “The programme also builds on students’ research and increases network and collaboration possibilities. We receive more international acknowledgement for our research efforts and compete with the best in the world. Our research is not necessarily about having the best equipment (although it is very important), but critically it is about the generation of innovative ideas,” says Prof Roodt. 

News Archive

UFS and Mexico forge links
2006-03-30

Some of the guests attending the signing of the memorandum of agreement were in front from the left Prof Wijnand Swart (Chairperson: Centre for Plant Health Management at the UFS), His Excellency Mauricio de Maria y Campos (Ambassador of Mexico in Southern Africa), Prof Magda Fourie (Vice-Rector: Academic Planning at the UFS) and Dr José Sergio Barrales Domínguez (Rector of the University of Chapingo in Mexico).
Photo: Stephen Collett

UFS and Mexico forge links
The Centre for Plant Health Management (CePHMa) in the Department of Plant Sciences at the University of the Free State (UFS) is presenting its first international conference.  The conference started yesterday and will run until tomorrow (Friday 31 March 2006) on the Main Campus in Bloemfontein. 

The conference is the first on cactus pear (or prickly pear) in South Africa since 1995.  It coincides with 2006 being declared as International Year of Deserts and Desertification by the United Nations General Assembly. 

During the opening session of the conference yesterday a memorandum of understanding (MOU) was signed between CePHMa and the University of Chapingo (Universidad Autonoma Chapingo) in Mexico.  The signing ceremony was attended by the Ambassador of Mexico in Southern Africa, His Excellency Mauricio de Maria y Campos, the Rector of the University of Chapingo, Dr José Sergio Barrales Domínguez, and the Vice-Rector: Academic Planning of the UFS, Prof Magda Fourie, amongst other important dignitaries. 

“South Africa and Mexico have a lot in common where agricultural practices in semi-arid areas and the role of the cactus pear are concerned,” said Prof Wijnand Swart, Chairperson of CePHMa at the opening of the conference.

He said that the MOU is the result of negotiations between CePHMa and the Ambassador of Mexico in Southern Africa over the past 12 months.

“The MOU facilitates the negotiation of international cooperative academic initiatives between the two institutions.  This entails the exchange of students and staff members of the UFS, curriculum development, research and community service,” said Prof Swart.

“During the next two days, various areas of interest will be discussed.  This includes perspectives from commercial cactus pear farmers in South Africa, the health management of cactus pear orchards, selection of new cultivars of cactus pear, and the nutritional and medicinal value of the crop,” said Prof Swart.

In his welcoming message Prof Swart explained that in recent years there has been increased interest in the cactus pear for the important role it can play in sustainable agricultural systems in marginal areas of the world.  These plants have developed phenological and physiological adaptations to sustain their development in adverse environments. 

“The cactus pear can serve as a life saving crop to both humans and animals living in marginal regions by providing a highly digestible source of energy, water, minerals and protein,” said Prof Swart. 

“In an age when global warming and its negative impact on earth’s climate has become an everyday subject of discussion, the exploitation of salt and drought tolerant crops will undoubtedly have many socio-economic benefits to communities inhabiting semi-arid regions,” said Prof Swart.

“Plantations of cactus pear grown for fruit, forage and vegetable production, as well as for natural red dye produced from the cactus scale insect known as cochineal have, over the last two decades, been established in many countries in South America, Europe, Asia and Africa.  The crop and its products have not only become important in international markets, but also in local markets across the globe,” said Prof Swart. 

Detailed discussions on the implementation of the MOU will take place between CePHMa and the University of Chapingo after the conference. 

Media release
Issued by: Lacea Loader
Media Representative
Tel:   (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za
30 March 2006

 

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