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19 April 2024 | Story André Damons | Photo Charl Devenish
Dr Nashua Naicker
Dr Nashua Naicker, lecturer and Chairperson: Learning and Teaching Committee (SoHRS) in the Department of Optometry, UFS School of Health and Rehabilitation Sciences, graduated on Thursday (April 18) with the degree Doctor of Philosophy in Health Professions Education.

A strong need to improve the general standing of optometry as a profession and to create lifelong learning opportunities for locally trained optometrists beyond what currently exists, is what led Dr Nashua Naicker to pursue a PhD in this field.

Dr Naicker, lecturer, and Chairperson: Learning and Teaching Committee (SoHRS) in the Department of Optometry, UFS School of Health and Rehabilitation Sciences, says he feels an overwhelming sense of relief with a keen sense accomplishment by achieving what he set out to through persistence in the face of adversity.

He graduated on Thursday (18 April) at the Faculty of Health Sciences April graduation ceremony with the degree Doctor of Philosophy in Health Professions Education through the Division of Health Sciences Education. “I am pleased and hope to change the narrative on this new path as an accredited researcher from ‘how long are you going to take to finish?’ to ‘what have you learnt in this journey?’. We are far too focused on chasing a timeline rather than focusing on the contribution that one makes and the self-development in this journey of discovery,” says Dr Naicker. 

His supervisor was Prof Alvin J Munsamy from University of KwaZulu-Natal (UKZN) and co-supervisor Dr CB Written from the UFS.  

Need for educational expansion

His research was focused on establishing a framework for postgraduate programmes in specialty fields of optometry for South Africa. The investigation was carried out with practising optometrists as the primary stakeholders and with optometric academics as the custodians for education and training in the country.

“With an overwhelming need for educational expansion found in this investigation, a conceptual framework was proposed as the innovation to take the profession forward in South Africa. Improving patient care from being upskilled and receiving professional recognition for the additional competencies and proficiencies that would be gained, was the motivating factors identified by optometrists to consider further education and training,” says Dr Naicker.

According to him, being in the educational fraternity for almost two decades and as a former education committee member of the professional board of optometry, he was able to see where the shortcomings were in the profession which set him on this path to pursue this research. With most optometrists in clinical practice and no clinical postgraduate qualifications available except pure research-based qualifications in SA, Dr Naicker explains that this hindered optometrists’ professional trajectory and career path opportunities into various special interest areas. 

“By developing a framework for horizontal articulation pathways towards coursework postgraduate qualifications in various clinical specialty fields, this would be the contribution in addressing the educational gap that would guide higher education institutions in their programme development process. The beneficiaries of this expansion would not only be the health professionals but the patients who access optometric care from the optometrists who would have advanced skills and competencies to deliver comprehensive eye care services.”

Stayed motivated

Dr Naicker says the journey to his PhD was challenging from the outset as the country went into hard lockdown due the COVID-19 pandemic just five weeks after he registered for his PhD. Working on a PhD was not a priority at the time when your survival and that of your loved ones was uncertain as thousands of people fell victim to the coronavirus. Further to this, he continues, multiple changes to his supervisory team and the overhaul and revitalisation of the administration and management of the UFS Division of Health Sciences Education, also impacted his progress in his doctoral research at that time. He had felt despondent after a year of being registered when stability arrived with supervisory assistance that re-ignited his drive to pick up the slack and keep moving forward.

“The words ‘push through it’ were verbalised to me by a stranger I met in passing.  While chatting about research I found those three words to be so profound and with such depth that they resonated with my experience of facing adversity but remaining vigilant to preservere and not drop the baton in the race against time to conclude my research. Gaslighting yourself and questioning your potential to complete a PhD only compounds your procrastination which was all too apparent. The goal is to rise above the self-doubt, brush off the devil with the fork sitting on your shoulder and just ‘push through it’.”

Dr Naicker, who is currently supervising four master’s of optometry students in their research undertaking, as well as undergraduate research projects, says he is in the process of publishing the research manuscripts generated from his PhD and is also part of a task team with the professional Board of Optometry for setting up the board exams for foreign-qualified optometrists. He would also like to work on research involving educating the educators of visually impaired learners.

News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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