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23 March 2023 | Story Rulanzen Martin | Photo Stephen Collett
From left: Hanlie Grobler, Senior Officer at the CFM; Prof Koos Terblans, Head of the Physics Department; Nonkululeko Phili, Assistant Officer at the CFM; and Edward Lee, Junior Lecturer and Researcher at the CFM. Photo: Stephen Collett
The Centre for Microscopy (CFM) in the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) unveiled a sophisticated JEOL High Resolution Transmission Electron Microscope (HRTEM) during a two-day microscopy conference on 14 and 15 March 2023. The microscope is part of a larger investment into research equipment worth R65 million. 

Speaking at the opening of the conference, Prof Corli Witthuhn, out-going Vice-Rector: Research and Internationalisation, said the microscope purchase “is a significant milestone in the university’s bid for cutting-edge research”. The HRTEM is part of a larger consignment of JEOL equipment at the UFS and, according to Dr Sarah Harper from JEOL UK, it places the UFS in a unique position.  

UFS at the forefront in using electron microscopes  

The HRTEM microscope can be utilised across disciplines and will give the UFS an advantage in uncovering new solutions and creating national and international interdisciplinary research collaborations. “The UFS is at the forefront in this field in SA and continues to push the boundaries,” Prof Witthuhn said. This move will also positively impact the training of honours, master’s, and doctoral students. 

Prof Danie Vermeulen, Dean of the Faculty of Natural and Agricultural Sciences, reiterated Prof Witthuhn’s sentiments by saying that this equipment will set the faculty apart from its competitors. “The faculty already reached the goals of Vision 130 by being proactive,” he said. In the past seven years more than R300 million worth of equipment was acquired by the faculty, but he added that to be the best is not just about the best equipment – “the data coming from using this equipment is what will make the real difference”.

Prof Koos Terblans
Prof Koos Terblans opens the conference on 14 March 2023. Photo: Stephen Collett .

Road to the JEOL HRTEM started in 2018

The process of acquiring a HRTEM microscope started in 2018 and was concluded with the purchasing of the JOEL microscopes in March 2020, a few weeks before the first COVID-19 lockdown. The purchase was made possible through the collaboration between the faculties of Natural and Agricultural Sciences and Health Sciences. Thanks to the dedication of staff members in the Centre for Microscopy and Physics, it was possible to accept delivery of the new HRTEM in June 2021. Prof Koos Terblans, Head of the Physics Department and the Centre for Microscopy, who led the entire project, said this was one of the “proudest moments in my career”.  

Installing the equipment involved various university resources, including the University Estates Department, which had to make additional structural changes to the room where the equipment is housed. This included digging two metres into the existing floor and placing the HRTEM on a 70-tonne solid concrete block, to ensure that the equipment was secure and vibration free.

Prof Terblans said now that the HRTEM from JEOL and its supporting equipment – the final piece of the R65 million research investment puzzle – is part of the faculty’s resources, it is up to the scientists and academics to utilise it for innovative research, enhance research productivity, and foster new collaborations. 

Edward Lee
Edward Lee shows the new HRTEM electron microscope to colleagues and conference attendees.Photo: Stephen Collett 

In front from the left; Dr Molapo Qhobela, Vice-Rector: Institutional Change, Strategic Partnerships, and Societal Impact; Prof Corli Witthuhn; Prof Koos Terblans. Back from the left; Prof Jannie Swarts, and Prof Danie Vermeulen.
In front from the left; Dr Molapo Qhobela, Vice-Rector: Institutional Change, Strategic Partnerships, and Societal Impact; Prof Corli Witthuhn; Prof Koos Terblans. Back from the left; Prof Jannie Swarts, and Prof Danie Vermeulen.
From the left; Prof Jannie Swarts, Prof Danie Vermeulen and Prof Koos Terblans.
From the left; Prof Jannie Swarts, Prof Danie Vermeulen and Prof Koos Terblans.
The HRTEM electron micoscope
The HRTEM electron micoscope
Ribbon cutting: Prof Corli Witthuhn together with Prof Koos Terblans,left, and Prof Danie Vermeulen
Ribbon cutting: Prof Corli Witthuhn together with Prof Koos Terblans,left, and Prof Danie Vermeulen

News Archive

New publication on groundwater remediation soon to be introduced
2017-05-05

Description: Prof Abdon Atangana groundwater remediation Tags: Prof Abdon Atangana groundwater remediation

A new book from Prof Abdon Atangana from
the UFS Institute for Groundwater Studies
proposes new techniques for groundwater
remediation, including guidelines on how chemical
companies can be positioned in any city to avoid
groundwater pollution.
Photo: Pixabay

A new publication, Fractional Operators with Constant and Variable Order with Application to Geo-Hydrology, will be published later this year, on 1 November 2017. The author, Prof Abdon Atangana, from the Institute of Groundwater Studies at the University of the Free State, said the book proposes new techniques for groundwater remediation, including guidelines on how chemical companies can be positioned in any city to avoid groundwater pollution.

Focus of the book
Prof Atangana said researchers and practitioners interested in groundwater modelling and remediation from applied mathematical and geo-hydrology backgrounds, will benefit from reading this book.

According to Elsevier, the book provides a physical review of fractional operators, fractional variable order operators, and uncertain derivatives to groundwater flow and environmental remediation. It presents a formal set of mathematical equations for the description of groundwater flow and pollution problems using the concept of non-integer order derivative. Both advantages and disadvantages of models with fractional operators are discussed.

“Researchers and practitioners
interested in groundwater modelling
and remediation from applied
mathematician and geo-hydrology
backgrounds, will benefit from
reading this book.”

About the author
Prof Atangana specialises in applied mathematics, groundwater modelling, fractional calculus and their applications, methods for partial differential equations, methods for ordinary differential equations, iterations methods, asymptotic methods, perturbations methods, and numerical method for fractional differential equations, uncertainties analysis. He has participated in 18 international conferences, organised six special sections and symposiums in international conference in Europe, Africa, Asia and USA, and has been invited as plenary speaker in eight international conferences. He also serves as editor on 20 international journal of mathematics and applied mathematics and editor-in-chief of two international journals of applied mathematics.

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