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10 June 2024 | Story Precious Shamase | Photo Supplied
Prof Richard Ocaya
Prof Richard Ocaya, Associate Professor from the Physics Department.

Prof Richard Ocaya from the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) Qwaqwa  Campus has achieved a significant milestone with a newly patented invention. This patent, developed in collaboration with researchers from Turkey and Saudi Arabia, is the result of work that began in 2017, focusing on a special material known as graphitic carbon nitride.

This breakthrough in temperature measurement technology aligns perfectly with the university's Vision 130 commitment to innovation and addressing global challenges. The new device offers a unique solution to a longstanding issue in the field, providing accurate temperature measurements across an extremely wide range. Existing solutions often require multiple devices, leading to increased costs and reduced accuracy, but this invention simplifies the process.

The device, based on a combination of graphitic carbon nitride and silicon, can measure temperatures from -250°C to 250°C with exceptional consistency and linearity. This range and accuracy set it apart from current technologies, making it suitable for various applications, from standard temperature measurement to specialized settings involving extreme temperatures. It could be especially valuable in deep-space exploration, where equipment faces drastic temperature fluctuations.

The patent underscores the university's commitment to fostering collaborative research, a key aspect of Vision 130. Prof Ocaya attributes the success of the invention to the robust nature of the team, established in 2015. The team is now seeking to commercialize the technology by licensing it to a suitable partner, with organizations like NASA expected to show significant interest.

Prof Ocaya advises other academics considering patenting their inventions to ensure the patent solves a real problem uniquely and is based on sound principles. This makes the invention reproducible and protects it from being copied, assigning exclusive rights to the patent holder. Patenting allows for either manufacturing the devices or licensing them to third parties for royalties and profit. He notes that the main consideration is that the innovation must be practical and solve a specific problem in a novel and commercially viable way. He also acknowledges the challenge many academics face, as the "publish or perish" mentality often leads to choosing scientific articles over patents.

Despite securing the patent, Prof Ocaya and his team continue their research efforts, exploring new possibilities while balancing practical research with academic pursuits. He believes the invention will significantly impact the field of temperature measurement, being integrated into many new designs requiring such measurements.

The university proudly supports this innovative research and anticipates its real-world impact, furthering Vision 130's commitment to increasing UFS's research capacity and capability.

News Archive

'Structures of Dominion and Democracy' by David Goldblatt at the Johannes Stegmann Art Gallery
2015-08-03

Photograph by David Goldblatt, On August 16 2012 South African Police shot striking mineworkers of the Lonmin platinum mines, killing 34 and wounding 78 within a radius of 350 metres of this koppie, where the men used to meet. Seventeen of the men, seeking shelter among boulders from police fire, were shot with seemingly lethal intent, some with their hands up in surrender, none were given medical assistance for their wounds. Beyond is the Lonmin smelter, which stood idle during the strike. Marikana, North-West Province, 11 May 2014.

The University of the Free State, in partnership with the Goodman Gallery, presents the exhibition, 'Structures of Dominion and Democracy', by renowned South African photographer David Goldblatt.  

This exhibition, which runs from 13 July to 7 August 2015 on the Bloemfontein Campus, is dedicated to the series, “Structures”, one of the major bodies of works by Goldblatt.  For over three decades, Goldblatt has travelled South Africa, photographing sites and structures weighted with historical narrative: monuments, private, religious and secular, which reveal something about the people who built them.  These sites allow us a glimpse into the everyday. Each place is a repository, a landscape containing an epic story that has involved whole communities: the experience sometimes told through the memorialising of remarkable individuals.

The exhibition, Structures of Dominion and Democracy, traverses two distinct eras in South Africa history. As Goldblatt explains: "Over the years, I have photographed South African structures, which I found eloquent, of the dominion which Whites gradually came to exert over all of South Africa and its peoples.  That time of domination began in 1660 when Jan van Riebeeck ordered a cordon to be erected of blockhouses and barriers that would exclude the indigenous population from access to the first European settlement in South Africa and its herds, lands, water, and grazing.  The time of domination ended on the 2nd of February 1990, when, on behalf of the government and the Whites of South Africa, President FW de Klerk effectively abdicated from power.  Beginning in 1999 and continuing to the present, I have photographed some structures that are eloquent of our still nascent democracy.  In the belief that, in what we build we express much about what we value, I have looked at South African structures as declarations of our value systems, our ethos.”

Johannes Stegmann Art Gallery, UFS Sasol Library
University of the Free State
206 Nelson Mandela Ave
Bloemfontein

Gallery hours:  
Monday to Friday 08:30 – 16:30

Entrance: Free
Enquiries: 051 401 2706, dejesusav@ufs.ac.za

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