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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

Power interruptions: Information for internal communication
2008-01-31

As part of the UFS’s commitment to address load shedding, the management would like to communicate the following:

The UFS mainly deals with the power interruptions by way of (a) the possible installation of equipment (e.g. generators) and (b) operational arrangements to ensure the functioning of the UFS in spite of power interruptions.

During the past week progress was made on both fronts. The information that follows resulted from a meeting of a task team of Physical Resources led by Mr Nico Janse van Rensburg, which took place on Monday 28 January (this task team naturally focuses on physical solutions) and a discussion by Exco on Wednesday 30 January 2008. Exco discussed the recommendations of the mentioned task team in respect of physical aspects, as well as the operational arrangements proposed by faculties.

Physical solutions

A Main Campus

1. New emergency power installations already approved:

Last week Exco gave its approval for the design and installation of emergency power equipment in all the large lecture-hall complexes to proceed immediately.

In all these cases

  • load surveys have been completed and a start has been made with the ordering of equipment and the process of appointing contractors. (Exco approved the adjustment of normal tender procedures in an attempt to expedite completion.)
  • generators with 20-30% more capacity than required for the current load are being ordered.
  • provision is being made for the connection of lights and at least one wall plug to the emergency power.
  • the expected construction time is 16 weeks (except in the case of the Flippie Groenewoud Building where it is 6 weeks).

The above-mentioned concerns lecture halls/ venues in the following buildings: Examination Centre, Flippie Groenewoud Building, Stabilis, Genmin and the Agriculture Building.

As far as the Agriculture Building is concerned, a larger generator (larger than required for lecture venues only) is being ordered in view of simultaneously providing essential research equipment (refrigerators, ovens, glasshouses) with emergency power within 16 weeks.

2. Investigation into the optimal utilisation of present emergency power installations

All the emergency power systems are being investigated on the basis of a list compiled in 2006 to determine whether excess capacity is available and whether it is possible to connect additional essential equipment or lights to it.

The electrical engineer warns as follows:
“Staff members must under no circumstances overload present emergency power points.

A typical example of this is a laboratory with 10 power points of which 2 points are emergency power outlets. Normally a fridge and freezer would, for example, be plugged into the two emergency power points, but now, with long load-shedding interruptions, a considerably larger number of appliances are being plugged into the power point by means of multi-sockets and extension cords. In the end the effect of such connections will accumulate at the emergency generator, which will then create a greater danger of it being overloaded and tripping, in other words, no emergency power will then be available.”

3. Requests and needs addressed directly to Physical Resources or reported to Exco via the line managers.

All the physical needs and requests addressed directly to Physical Resources or submitted to Exco via the line managers are being listed, classified and considered technically in view of their being discussed by the task team on Monday 11 February.
The information will (a) lead to recommendations to Exco regarding possible additional urgent emergency power installations, and (b) be used in the comprehensive investigation into the UFS’s preparedness for and management of long power interruptions.

Requests that can easily be complied with immediately and that fit into the general strategy will indeed be dealt with as soon as possible.

4. Purchase of loose-standing equipment: light, small, loose-standing generators, UPSs as solutions to/ aids during power interruptions

Exco approved that

a) faculties and support services accept responsibility themselves for the funding and purchase of loose equipment such as, for example battery lights, should they regard these as essential.
b) UPSs (uninterruptible power supplies) that faculties and support services wish to purchase to combat the detrimental effect of unexpected power interruptions on computer equipment) can (as at present) be purchased from own funds via Computer Services.
c) UPSs (uninterruptible power supplies) that faculties and support services wish to purchase to combat the detrimental effect of unexpected power interruptions on other types of equipment can normally be purchased from own funds with the consent of the line manager concerned.
Note: Please just make sure of the appropriateness of the equipment for a specific situation: it is not a power supply that can bridge a two-hour power interruption.)
d) small, loose-standing generators can be purchased from own funds via Physical Resources and installed under their supervision.
e) laptop computers can , where necessary, be purchased from own budgets. The availability of second-hand laptop computers must be taken into account.

B Vista

No major problems have been reported to date. The situation is being monitored and will be managed according to need. The same guidelines that apply to the Main Campus will naturally also apply to the Vista Campus.

C Qwaqwa

The situation is receiving attentions and solutions have already been found for most problems.

D General

1. All-inclusive project
A comprehensive investigation into the UFS’s preparedness for and management of long power interruptions will be launched as soon as possible. Available capacity will be utilised first to alleviate the immediate need. The needs assessment to which all faculties and support services have already contributed is already an important building block of the larger project.

2. Building and construction projects currently in the planning and implementation phase
The need for emergency power for projects such as the new Computer Laboratory is being investigated proactively and will be addressed in a suitable manner.

3. Liaison with Centlec
Attempts at direct and continuous liaison are continuing in an attempt to accommodate the unique needs of the UFS.

4. HESA meeting and liaison with other universities
A representative of the UFS will attend a meeting of all higher education institutions on 11 February. The meeting is being arranged by HESA (Higher Education South Africa) to discuss the implications for the sector, the management of risks and the sector’s response to government.

5. Internal communication
It is the intention to communicate internally after every meeting of the task team, which will take place on Mondays. Strategic Communication will assist in this regard.


 

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