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18 March 2021 | Story Leonie Bolleurs | Photo Elfrieda Lotter
From the Centre for Microscopy are, from the left: Edward Lee, Prof Koos Terblans, Hanlie Grobler, and Nonkululeko Phili-Mgobhozi.

In its quest to inspire excellence, the University of the Free State (UFS) is in the process of installing state-of-the-art microscopy instruments that will differentiate them as leaders in materials research.

This project to the value of R65 million will not only promote research in, among others, the fields of Chemistry, Physics, Microbiology, Geology, Plant Sciences, Zoology, and Cardiothoracic Surgery, but it will also increase the number of research articles published. 

Prof Koos Terblans, Head of the Department of Physics and Director of the Centre for Microscopy at the UFS, indicates that the university recently purchased a high-resolution transmission electron microscope (HRTEM), a scanning electron microscope (SEM), and a focused ion beam secondary electron microscope. 

“The installation of the equipment that was delivered on 1 March 2021 will take approximately three to six months,” he says. 

Research at another level

The biggest instrument, the HRTEM, allows for direct imaging of the atomic structure of samples. This powerful tool will allow researchers to study the properties of materials on an atomic scale. It will, for instance, be used to study nanoparticles, semiconductors, metals, and biological material.

The instrument will also be used to optimise heat treatment of materials, as it can heat the sample up to 1000 °C while recording live images of the sample. “With this apparatus, the UFS is the only institution in South Africa that can perform this function,” says Prof Terblans. 

He says to install the apparatus, they had to dig a hole of 2 m deep in a special room where the machine was to stand. The machine was then mounted on a solid concrete block (4 m x 3 m x 2 m) in order to minimise vibration. The instrument also acquired a special air conditioner that minimises the movement of air in the room. 

The focused ion-beam secondary electron microscope that was purchased, is used together with the HRTEM, explains Prof Terblans. It is used to cut out samples on a microscopic level to place inside the HRTEM. 

Having access to both the HRTEM and the ion-beam secondary electron microscope places the UFS at another level with its research, says Prof Terblans. 

At the forefront of microscopy 

The third machine acquired, the SEM – which is an electron microscope – allows researchers to produce images of a sample by scanning the surface of the sample with a focused beam of electrons. Prof Terblans says this machine will be used to serve researchers in the biology field with high-resolution SEM photos. 

The UFS Centre for Microscopy can, besides UFS researchers, be accessed by researchers from the Central University of Technology, the national museum, and other research facilities. 

With this injection of state-of-the-art equipment, the UFS is now more than ever at the forefront of research in South Africa. 

News Archive

The universal power of music and song to convey the unspeakable
2015-05-07

Philip Miller
Photo: Johan Roux

Spotlight photo: John Hodgkiss

Philip Miller, award-winning composer and sound artist, recently delivered the second instalment of the Vice-Chancellor’s Lecture Series on Trauma, Memory, and Representations of the Past on the Bloemfontein Campus. This lecture series forms part of a five-year research project led by Prof Pumla Gobodo-Madikizela. The series focuses on how the creative arts represent trauma and memory, and how these representations may facilitate the healing of historical wounds.

Disrupting the Silence: The Past and Transnational Memory
In Miller’s lecture, ‘Disrupting the Silence: The Past and Transnational Memory’, he discussed the creative process – and the far-researching effects – of his composition: ‘REwind: A Cantata for Voice, Tape and Testimony’. The production consists of 4 soloists, an 80- to 100-member choir, a string octet, combined with gripping projected images and audio of victims testifying during the Truth and Reconciliation (TRC) hearings.

While listening to those raw recordings, Miller would rewind continually and listen again. In between the sounds of the tape stretching and spooling, sighs, gulps for air, and moments when the speakers lost their speech, a hidden sound world revealed itself. And within these silences lay an entrenched trauma far more profound than the actual words spoken.

Communal remembering
When Miller asked Nomonde Calata how she felt about his using the recording of her heart-rending cry during her TRC testimony, her reply was poignant. For Calata, her cries – taken over by the voice of Sibongile Khumalo during the cantata – were a living memorial to her loving husband. “And it almost felt like a soothing balm to her traumatic loss,” Miller said.

“I believe that a collective body of people singing is a unique symbolic act of communal remembering. But more than that, it is a deep form of identification of our humanity, and allows for some form of catharsis for those testifiers who have attended the live performances. Just as a parent sings a lullaby to calm a crying child, the choir singing reaches those of us who continue to mourn.

“Music and song – and the arts in general – can convey the powerful stories of our nation without fearing to engage with the subject matter,” Miller said. “This I believe is the universal power of music and song: to convey a spiritual dimension to what perhaps is sometimes too graphic and painful to comprehend fully.”

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