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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

Care centre goes high-tech to help sexual abuse victims
2016-11-25

Description: Colposcope Tags: Colposcope

The colposcope, donated by the Discovery Fund,
will be used during gynaecological examinations
to detect any irregularities.
Photo: Supplied

Rape is one of South Africa’s most pressing social problems. Rape levels in the country are often discussed and reported on, but it does not deter perpetrators from this behaviour. According to Africa Check, of the more than 42 000 rape cases reported in 2015, 15 790 were child rape cases.

In an effort to assist victims of sexual assault and rape, the University of the Free State (UFS) Department of Family Medicine adopted the Tshepong Thuthuzela Care Centre, under the leadership of UFS lecturer Dr Mariaan Kotze.

The Discovery Fund donated a colposcope to Tshepong Thuthuzela Care Centre, an instrument that works with the help of a bright light and which is used to examine victims of abuse. It has also become a standard of good practice in the assessment of child abuse worldwide. According to Dr Kotze, the new instrument will also be used for training health practitioners by rendering clinical forensic services to abuse victims.

Managing complex issues

The care centre works with between 80 and 120 victims of rape each month, a third of whom are children under 14 years of age. According to Dr Kotze, the management of child sexual abuse victims is more complex than with adults; as there is a higher chance of missing or over-diagnosing abnormalities. Also, she says, the examination process is often observed by a group of healthcare practitioners, an experience which is often intrusive and intimidating for the child. With the colposcope, the timeframe of the examination is shortened, and can be captured and viewed in real time, without the victim being present.

Best care for victims

The colposcope is a magnifier and light source used during gynaecological examinations. It is instrumental in providing the best care to victims of sexual abuse, and helps diagnose and assist in the treatment of cases of abuse. Its ability to capture and review images at the time of examination allows for retrospective research, and improves the ability of expert witnesses in court cases.

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