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19 April 2024 | Story André Damons | Photo Stephen Collett
Prof Salim Karim
Prof Francis Petersen, Vice-Chancellor and Principal of the University of the Free State (left) and Prof Gert Van Zyl, Faculty of Health Sciences Dean (right) conferred Prof Salim S Abdool Karim honorary doctorate for his ground-breaking research in AIDS and COVID-19. He received the degree PhD in Medical Virology (h.c.) during the Faculty of Health Sciences graduation ceremony.

With the case study of Caprise 256, a young woman in his AIDS study, and her potent antibody that kills HIV, Prof Salim S Abdool Karim, honorary doctorate recipient, conveyed the message of the power of science, knowledge and discovery to motivate the graduates from the Faculties of Health Sciences and Theology and Religion at the University of the Free State (UFS).

Prof Karim, renowned for his ground-breaking research in AIDS and COVID-19, received the degree PhD in Medical Virology (h.c.) during Thursday’s (18 April 2024) graduation ceremony.

From humble beginnings

“It is great honour and privilege to be here and accept this honorary doctorate. I first went to university in 1978 and wanted to study engineering but did not have the money to pay for registration as I come from a poor background. So, I attended classes anywhere. But then I was accepted to study medicine at the University of Natal with a full scholarship and that was the end of my career in engineering.

“From that humble beginning to today where you might have watched me on TV trying to share with you what we know about COVID-19 and other infectious diseases, is a great culmination of a career and I am deeply honoured and privileged to receive this honorary doctorate”, he said shortly after accepting his fifth honorary degree.

Prof Abdool Karim, a clinical infectious disease epidemiologist who is widely recognised for scientific contributions to AIDS and COVID-19, also shared with graduates the last 20 years of his academic journey with an example to illustrate how exciting the acquisition of knowledge and thrill of discovery can be. He talked about his work with AIDS and says it remains one of the world’s greatest challenges. Last year, he said, there were 1.3 million new infections and over 700 000 deaths as a result of AIDS.

Caprisa 256’s antibody

“I have devoted almost 40 years of research to looking for solutions for the AIDS problem and one of the biggest problems we are dealing with is the high rate of HIV, particularly in young girls. In 2003 we started a study to begin to understand why young women are at such a high risk of HIV.

“We enrolled hundreds of young women without HIV. We provided them with all kinds of knowledge to try and keep them HIV-free. Amongst those women we enrolled was participant 256, a young lady and she acquired HIV infection two years later in 2005.”

It would later turn out that this young woman, codename Caprisa 256, has a very special antibody – the kind that can kill a wide range of HIV – which is referred to as a broadly neutralising antibody. It is an antibody researchers tried to ellicit in making vaccine.

It turned out that not only is her antibody able to kill a wide range of HIV, it is a highly potent antibody. After testing and cloning a cell in the blood and growing it in a culture and harvesting the antibody, it was genetically manipulated to get a better antibody.

The Director of the Centre for the AIDS Programme of Research in South Africa (Caprisa), explained that it took two-and-a-half years to manufacture this antibody in the US and the first South African was injected with it in 2020. They enrolled over 1 000 women in a study with half of the women receiving the placebo and half the antibody. The question whether it works, or protects humans from the HIV will only be answered next year, Prof Abdool Karim explained. 

The 3 Ps

“What I am trying to convey to you, it’s the power of science, the power of knowledge, the power of discovery and when each of you goes out into the world, I want to leave you with the message that there are three valuable lessons that I have learned in this 20-year journey of Caprisa 256.

“The first one is find your passion, find something that excites you when you wake up in the morning. There will be people that would want to pull you down, you will have to stand firm. You have to show that you are passionate and committed and regardless of the obstacles, you will persevere. Find your passion and persevere. And as you do that, always remember the pursuit of excellence. I know that each of you will bring to this world your own humanity, your own values, and we are in this world, in a situation where we are in desperate need of people who will bring their humanity and their wisdom to bear.”

Prof Francis Petersen, Vice-Chancellor and Principal of the UFS, congratulated Prof Abdool Karim on his honorary degree and praised his groundbreaking research on Aids and COVID-19, as well as his exceptional work in medical virology over the years. “Prof Abdool Karim led the South African response to COVID-19, providing us as the public, as well as the government with scientific advice on the virus, new variants, and flattening the curve. Prof Abdool Karim has the ability to easily explain complex science to members of the general public in such a way that they are able to understand it. He played a critical role during the pandemic, and for this as well as for his research on Aids, South Africa is indebted to him.

News Archive

New world-class Chemistry facilities at UFS
2011-11-22

 

A world-class research centre was introduced on Friday 18 November 2011 when the new Chemistry building on the Bloemfontein Campus of the University of the Free State (UFS) was officially opened.
The upgrading of the building, which has taken place over a period of five years, is the UFS’s largest single financial investment in a long time. The building itself has been renovated at a cost of R60 million and, together with the new equipment acquired, the total investment exceeds R110 million. The university has provided the major part of this, with valuable contributions from Sasol and the South African Research Foundation (NRF), which each contributed more than R20 million for different facets and projects.
The senior management of Sasol, NECSA (The South African Nuclear Energy Corporation), PETLabs Pharmaceuticals, and visitors from Sweden attended the opening.

Prof. Andreas Roodt, Head of the Department of Chemistry, states the department’s specialist research areas includes X-ray crystallography, electrochemistry, synthesis of new molecules, the development of new methods to determine rare elements, water purification, as well as the measurement of energy and temperatures responsible for phase changes in molecules, the development of agents to detect cancer and other defects in the body, and many more.

“We have top expertise in various fields, with some of the best equipment and currently competing with the best laboratories in the world. We have collaborative agreements with more than twenty national and international chemistry research groups of note.

“Currently we are providing inputs about technical aspects of the acid mine water in Johannesburg and vicinity, as well as the fracking in the Karoo in order to release shale gas.”

New equipment installed during the upgrading action comprises:

  • X-ray diffractometers (R5 million) for crystal research. Crystals with unknown compounds are researched on an X-ray diffractometer, which determines the distances in angstroms (1 angstrom is a ten-billionth of a metre) and corners between atoms, as well as the arrangement of the atoms in the crystal, and the precise composition of the molecules in the crystal.
  • Differential scanning calorimeter (DSC) for thermographic analyses (R4 million). Heat transfer and the accompanying changes, as in volcanoes, and catalytic reactions for new motor petrol are researched. Temperature changes, coupled with the phase switchover of fluid crystals (liquid crystals -watches, TV screens) of solid matter to fluids, are measured.
  • Nuclear-magnetic resonance (NMR: Bruker 600 MHz; R12 million, one of the most advanced systems in Africa). A NMR apparatus is closely linked with the apparatus for magnetic resonance imaging, which is commonly used in hospitals. NMR is also used to determine the structure of unknown compounds, as well as the purity of the sample. Important structural characteristics of molecules can also be identified, which is extremely important if this molecule is to be used as medication, as well as to predict any possible side effects of it.
  • High-performance Computing Centre (HPC, R5 million). The UFS’ HPC consists of approximately 900 computer cores (equal to 900 ordinary personal computers) encapsulated in one compact system handling calculations at a billion-datapoint level It is used to calculate the geometry and spatial arrangements, energy and characteristics of molecules. The bigger the molecule that is worked with, the more powerful the computers must be doing the calculations. Computing chemistry is particularly useful to calculate molecular characteristics in the absence of X-ray crystallographic or other structural information. Some reactions are so quick that the intermediary products cannot be characterised and computing chemistry is of invaluable value in that case.
  • Catalytic and high-pressure equipment (R6 million; some of the most advanced equipment in the world). The pressures reached (in comparison with those in car tyres) are in gases (100 times bigger) and in fluids (1 500 times) in order to study very special reactions. The research is undertaken, some of which are in collaboration with Sasol, to develop new petrol and petrol additives and add value to local chemicals.
  • Reaction speed equipment (Kinetics: R5 million; some of the most advanced equipment in the world). The tempo and reactions can be studied in the ultraviolet, visible and infrared area at millisecond level; if combined with the NMR, up to a microsecond level (one millionth of a second.

Typical reactions are, for example, the human respiratory system, the absorption of agents in the brain, decomposition of nanomaterials and protein, acid and basis polymerisation reactions (shaping of water-bottle plastic) and many more.

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