NRF 25 years: Dr Zikhona Tywabi-Ngeva

This year, the NRF is celebrating a major milestone in our history as we commemorate 25 years of Research, Innovation, Impact and Partnerships. It always gives us great joy to share the accomplishments and impact of the many students and researchers we have supported during various stages of their careers. We thank all participants for submitting their stories and hope you enjoy reading about their journey with the NRF.

Dr Zikhona Tywabi-Ngeva is a Lecturer in the Department of Chemistry at Nelson Mandela University. She received NRF funding for her Master’s and PhD studies, as well as an NRF Thuthuka Grant for Emerging Researchers.

How did your journey start?

I grew up in Machibini Village, Queenstown. Just like any other kid, I was always fascinated by the natural world and how things worked, especially in the medical field. My curiosity in the sciences was evident during my school years, particularly in subjects such as Mathematics, Accounting, Biology, and Physics. I was fortunate to have had inspiring teachers at Thistle Grove and Hexagon School who nurtured my interest in these subjects. They encouraged me to pursue higher education in a medical or scientific field.

I applied for a Bachelor’s in Medicine at the University of KwaZulu-Natal and was placed on a waiting list. Panicked, I started looking for a degree that was somehow close to medicine, and at the time, Chemistry stood out. I recognised the potential of a fulfilling career in chemistry, given its wide applications in various industries, including pharmaceuticals, environmental science, and research.

I chose the Durban University of Technology (DUT) for its strong reputation in applied sciences and its practical approach to education. The National Diploma in Analytical Chemistry provided a solid foundation and practical skills essential for the industry. Six months into the course, I received a bursary from the Chemical Industries Training and Education Authority (CHIETA), and I never looked back.

The progression to BTech and MTech degrees at DUT was a natural step, driven by my desire to deepen my knowledge and expertise. Achieving my MTech cum laude demonstrated my dedication and capability, which opened doors for further research opportunities and collaborations. The support and resources available at DUT were pivotal in my academic journey.

For my PhD, I was privileged to collaborate with the Council for Scientific and Industrial Research (CSIR) and the University of Alabama in the United States through the PhD funding that I received from NRF. This collaboration provided access to cutting-edge research facilities and a diverse academic environment. It was an invaluable experience that broadened my research perspectives and skills. My PhD work involved significant research contributions, leading to publications and recognition in the field of chemistry.

Post-PhD, I sought positions that allowed me to apply my research skills and contribute to scientific advancements. My roles have included research positions, academic appointments, and collaboration with industry partners. I have been fortunate enough to work at Dunlop Tyres, the CSIR, the University of Zululand, the University of KwaZulu-Natal, and the University of Fort Hare.

Networking with professionals in the field and participating in conferences and workshops helped me stay updated with the latest developments and expand my professional network. While growing up, I always envisioned myself making a difference through science, initially in the medical field. However, the specifics of my journey became clearer as I progressed through my education and gained more exposure to the field of pure sciences.

I am grateful for the opportunities and support that have enabled me to reach my current role as a lecturer and researcher at Nelson Mandela University. My journey has been shaped by a combination of passion, hard work, and the guidance of mentors and institutions.

How has your affiliation with the NRF impacted your studies/career?

Throughout my academic and professional journey, I have had a productive and supportive relationship with the NRF. The NRF has played a crucial role in advancing my research and academic career through various funding opportunities and programs.

During my time at DUT, I was awarded DSI-NRF Scarce Skills bursaries for both my MTech and PhD studies. These bursaries were instrumental in enabling me to focus on my research without the financial burden of tuition and living expenses. The financial assistance from the NRF not only supported me but also indirectly benefited my family. With the burden of education costs lifted, my family could focus on other needs and opportunities, contributing to an improved quality of life. The NRF has facilitated collaborative projects between South African institutions and international partners. Through these initiatives, I was able to work with the CSIR and the University of Alabama, broadening my research scope and experience.

I was a recipient of the NRF Thuthuka grant (2021 – 2023), aimed at emerging researchers. This grant not only provided financial support but also offered mentoring and development opportunities to enhance my research capabilities and academic profile. The NRF has provided travel grants that enabled me to attend international conferences and workshops. These opportunities were vital for networking with other researchers, presenting my findings, and staying updated with the latest developments in my field.

The funding and resources provided by the NRF have allowed me to pursue advanced research projects, contributing to significant advancements in the field of chemistry. My work has led to publications in reputable journals and recognition in the academic community. The financial and developmental support from the NRF has facilitated my career progression from a postgraduate student to a lecturer and researcher at Nelson Mandela University.

The opportunities provided by the NRF have been crucial in building my academic profile and achieving professional growth, enabling me to attend international conferences and collaborate with researchers globally. These experiences have enriched my research, provided diverse perspectives, and fostered valuable professional relationships. The support from the NRF has enabled me to take on leadership roles in various research projects. This experience has been invaluable in developing my project management and leadership skills.

Supervising postgraduate students has been a rewarding aspect of my career. The resources and funding from the NRF have allowed me to provide better guidance and support to my students, helping them achieve their academic and research goals.

My academic and professional success has been a source of pride and inspiration for my family. It has motivated younger relatives to pursue higher education and aim for excellence in their own fields. As a lecturer and researcher, I have been able to positively influence my students by sharing my experiences and providing them with opportunities for research and development. The NRF’s support has enabled me to mentor students effectively, helping them realise their potential and pursue their academic dreams.

My success story serves as an inspiration to students from similar backgrounds, showing them that with hard work and the right support, they too can achieve their goals. The NRF’s support has had a ripple effect, positively impacting my personal life, my family, my students, and the broader academic and research community. I am deeply grateful for the NRF’s role in my journey and look forward to continuing to contribute to scientific advancements and education.

What is your area of expertise?

My work involves a combination of teaching, mentoring students, and conducting research. As a lecturer, I teach a variety of chemistry courses at the undergraduate and postgraduate levels. My teaching philosophy emphasises a hands-on, practical approach to learning, encouraging students to engage in research and real-world problem-solving. I also supervise postgraduate students, guiding them through their research projects and helping them develop their scientific skills and knowledge. Mentoring is a vital part of my role, and I take pride in supporting the next generation of chemists in their academic and professional growth.

My research focus and area of expertise are primarily in the field of chemistry, with specific interests in materials science, environmental chemistry, and analytical chemistry. My research explores the synthesis and characterisation of nanomaterials, which have unique properties and potential applications in various industries, including water treatment, energy, and agriculture. I am particularly interested in developing nanomaterials for environmental and agriculture applications. I investigate composite materials, which combine two or more different materials to create a new material with enhanced properties. This research has applications in creating more durable and efficient materials for use in water treatment and agriculture industries.

A significant portion of my research is dedicated to developing new methods and materials for water purification and treatment. This includes studying the removal of contaminants such as heavy metals, organic pollutants, and pathogens from water sources. I am also focused on promoting sustainable chemical practices and developing green chemistry methods to minimize the environmental impact of chemical processes. This includes researching alternative, eco-friendly materials, and processes.

I have published numerous research papers in reputable scientific journals and presented my findings at national and international conferences. These contributions help disseminate new knowledge and advancements in the field of chemistry. My research involves collaborations with other universities, research institutions, and industry partners. These partnerships enhance the quality and impact of my work, providing diverse perspectives and resources. I am committed to community outreach and education, working to promote scientific literacy and environmental awareness. This includes organizing workshops, seminars, and public lectures to share my research and its implications with a broader audience.

Why is your work/studies important?

My work and studies in the field of chemistry are important for several reasons, particularly in addressing key challenges faced by South Africa and the global community. The potential impact of my research spans environmental, economic, and societal benefits. South Africa, like many other countries, faces significant water scarcity and pollution issues. My research on nanomaterial-based water purification systems aims to provide efficient, low-cost solutions for removing contaminants from water. This has the potential to improve access to clean and safe drinking water, which is essential for public health and economic development.

The development of biodegradable composite materials can help reduce plastic waste and promote sustainable practices. These materials can be used in packaging and other applications, contributing to environmental conservation, and reducing landfill waste. By developing advanced materials with improved properties, my research can contribute to various industries, including construction, automotive, and aerospace. This can lead to the creation of new products, enhance the competitiveness of South African industries, and stimulate economic growth.

The creation of chemical sensors for environmental monitoring and industrial process control can lead to more efficient and safer operations in various sectors. This not only enhances productivity but also ensures compliance with environmental regulations, reducing the risk of fines and damage to ecosystems. Improved water purification methods can also reduce the prevalence of waterborne diseases, contributing to better health outcomes and reducing the burden on healthcare systems.

My research aims to contribute to the global body of scientific knowledge in chemistry, particularly in materials science and environmental chemistry. By publishing my findings and presenting them at conferences, I hope to share new insights and foster collaboration within the scientific community. I am committed to translating my research into practical solutions that address real-world problems. This involves not only developing innovative technologies but also ensuring that they are accessible, affordable, and scalable for widespread use.

As a lecturer and mentor, I aim to inspire and equip the next generation of scientists. By providing high-quality education and research opportunities, I hope to nurture talented individuals who will continue to drive scientific and technological advancements.

Through community engagement and outreach, I strive to raise awareness about environmental issues and the importance of sustainable practices, empowering people to make informed decisions and act.

What are some of your proudest academic achievements?

Graduating with my MTech in Chemistry cum laude demonstrated my dedication and academic excellence. This recognition provided a strong foundation for my research career and led to further opportunities for advanced studies and research projects.

Completing my PhD in Chemistry, in collaboration with the CSIR and the University of Alabama is one of my most significant academic milestones. The research conducted during my PhD led to several publications and advancements in the field of nanomaterials and environmental chemistry.

Publishing research papers in reputable scientific journals and presenting my work at national and international conferences. These publications and presentations have contributed to the body of knowledge in materials science and environmental chemistry. Sharing my findings with the global scientific community has facilitated collaborations, enhanced the visibility of my research, and promoted the application of my work in various industries. Examples include:

• Novel development of zinc oxide–coated carbon nanoparticles from pineapple leaves using sol-gel method for optimal adsorption of Cu2+ and reuse in latent fingerprint application
• A Global Analysis of Research Outputs on Neurotoxicants from 2011–2020: Adverse Effects on Humans and the Environment
• Making Global Green Connections: The Importance of Green Chemistry Summer School for Sustainable Development

Receiving the NRF Thuthuka grant aimed at emerging researchers was a pivotal moment in my career. This grant supported my research projects and provided mentoring and development opportunities. It played a crucial role in advancing my research capabilities and academic profile, leading to further achievements and contributions to the field.

Successfully mentoring and supervising postgraduate students, many of whom have gone on to achieve their own academic and professional successes, is one of my most fulfilling achievements. Guiding the next generation of chemists and researchers has been rewarding and has contributed to the growth and development of the scientific community.

• Dispatch Live: A passion for uplifting struggling young people

Delivering public lectures and seminars to share my research findings and promote scientific literacy is an integral part of my outreach efforts. These engagements help raise awareness about important scientific issues and inspire young students to pursue careers in science.

• NMU News: Best speaker award for chemistry lecturer Dr Tywabi-Ngeva

Participating in interviews and contributing to articles that highlight my research and its impact on society. These media engagements help communicate the relevance and importance of my work to a broader audience.

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