Tunde Bello-Ochende is a Professor of Mechanical Engineering at the University of Cape Town, South Africa. He is a Professor of Thermodynamics and Heat Transfer. His research focuses on the theoretical, experimental and numerical optimization of heat transfer devices from macro to micro scales. These include compact heat exchanger, micro-channel heat sink, and heat transfer augmentation using micro-fins.
His recent works are in the areas of sustainable/renewable energy (solar, geothermal and fuel cells), Sterling Engines and two-phase flow. He is the author and co-author of over 145 papers in referred journals and conference proceedings. He has successfully supervised over 30 postgraduate students (M and D students). Professor Bello-Ochende is a registered professional engineer of the Engineering Council of South Africa (ECSA). He is also a member of America Society of Mechanical Engineer (MASME).
Professor Bello-Ochende received his Bachelor’s, master’s degree from the University of Ilorin, Nigeria (1995, 1999) and doctorate from Duke University, USA (December 2004), all in Mechanical Engineering.
Thomas Malwela holds a PhD in Chemistry from the University of Johannesburg, South Africa. He is registered as Professional Natural Scientist in Physical Science since July 2013 with South African Council for Natural Scientific Professions (SACNSP). Currently, he is working as Manager/Research Group Leader for Materials Characterization, Testing and Analytical Facility at CSIR Chemical Cluster – Center for Nano-Structures and Advanced Materials. Within the same Centre, he has worked as an Acting Project Leader of Nano-Sensors Development Program for 6 months in 2020. A program which investigates semiconducting metal oxides for gas sensing in health and food applications. He has a balanced experience in electron microscopy, research and management.
His main expertise’s are on materials science research, with majority of which is in nanotechnology research. In 2008, he began his research career with an MSc project wherein he investigated magnetic nanostructures for magnetic storage devices applications. Atomic Force Microscopy (AFM), in particular Magnetic Force Microscopy (MFM) was used as a main technique. In 2010 he further used AFM to formulate a PhD project wherein he investigated the effect of crystallization of biodegradable nanocomposites thin films on the degradations rates. He used in-situ hot-stage AFM to study the crystallization behavior of biodegradable polymer at various temperatures. Post PhD activities, in 2015 – 2016, he conducted research studies on polymer nanocomposites for packing purposes, thus, involved improving the toughness and thermal stability of polymers by blending them with other polymers and add organically modified nanoclays. Early 2017, he joined a sensor group which is developing a non-invasive sensor to diagnose diabetes through breath. He has collaborated with many researchers from various scientific fields. He has published 24 international peer-reviewed journals as both an author and co-author. He has presented in an international conference and numerous local conferences.
His professional duties were strongly tied to microscopic techniques, which are atomic force microscopy (AFM) and focused ion-beam scanning electron microscopy (FIB-SEM). He has an extensive knowledge of AFM where he can comfortably operate it on different modes, thus, tapping mode, contact mode, in-situ hot-stage AFM, conduction-AFM (C-AFM), magnetic force microscopy (MFM), force mode (for stiffness measurements) and scanning tunneling microscopy (STM). He has an extensive knowledge on the operation and the basic principles of FIB-SEM. In an SEM mode, he has a fair understanding of secondary electron imaging and backscattered imaging, energy dispersive spectroscopy (EDS) for elemental analysis, and scanning transmission scanning electron microscopy (STEM). In a FIB mode, he has an extensive knowledge of cross-section milling and imaging, TEM lamellar preparations, 3D-reconstruction, patterning and various types of milling and depositions.
His current role is to manage CSIR Materials Characterization, Testing and Analytical Facility based in Pretoria, South Africa, which is one of the key facilities that has enabled the CSIR over the past 10 years to conduct world-class research and development in the field of nanotechnology. It is a multi-user, public instrumentation facility for materials research ranging from nanotechnology to biology and medicine. The main purpose of this facility is to provide support to the South African’s multidisciplinary researchers while also offering characterization services using the facility and its sophisticated equipment, to academia, industries and national laboratories. It has also built up a team of expertise in the field of nanomaterials characterization. As one of the best-equipped scientific facilities in South Africa, visiting scientists, community groups, learners, students and teachers frequently visit the facility. Technicians/Researchers at the facility provide one-on-one equipment training to frequent users, staff and students that seek characterization skills and knowledge in support of their research and educational goals.
Furthermore, he is also managing the extension of the CSIR Materials Characterization, Testing and Analytical Facility based in Port Elizabeth, South Africa, which provides testing services to the Textiles and Clothing, and Automotive sectors. This laboratory of consultation services (correlation and accreditation of service providers to retail groups), thus, 1) Ad-hoc testing and investigations, and 2) Testing services for textiles, composites and fire testing.