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03 July 2019 | Story Leonie Bolleurs
KovsiesCare - Clean Up Read More
Tsietsi Ngobese, through the Wesolve4x Cleaning My Planet Campaign, motivated citizens to collectively fill over 23 000 refuse bags to date.

The mission: To collectively fill 20 million refuse bags every Saturday with the help of 20 million people who are cleaning their own communities and our planet for an hour. The message: My planet, my responsibility.

The mission and message that the Wesolve4x Cleaning My Planet Campaign wants to convey, is based on a simple premise: Get community members to donate one hour of their time to cleaning duties every Saturday for the next 20 years until 2039. At the same time provide a continuous educational programme about waste management to the general public and to schools in order to empower them to take responsibility.

Address trash blindness


Tsietsi Ngobese, Chief Executive Officer of this initiative and BSc Actuarial Science graduate, says he understands the transformative power of education and the role it plays in transforming diverse communities. Through outreach programmes in our community and schools, we are slowly eliminating generational trash blindness. We also tackle some of the social determinants of health by encouraging healthy living conditions within our communities through good waste management and recycling. 

It is important for Tsietsi to add value to society. He believes that the Wesolve4x Generation will transform the world for the better through education and empowering all citizens.

The campaign – officially endorsed by Miss Earth South Africa, Catherine Constantinides – was launched on the UFS Bloemfontein Campus as well as the Abram Hlope Primary School in Katlehong on 4 May 2019.

“We want to promote the benefits of a clean and healthy environment for future generations,” said Tsietsi. 

Since their inception, the group has collectively filled over 23 000 refuse bags with the help of active citizens. 

Challenge accepted

When former lecturer, Jan Blomerus, once challenged his Actuarial students to protect the environment in order to decrease the mortality rate (from natural disasters because of the effect of climate change), Tsietsi accepted the challenge. “By inspiring excellence and transforming lives, the UFS plays an important role; I started to believe that I can address societal challenges in the communities I am an integral part of,” he said.

When Tsietsi saw trash piling up everywhere and children playing at illegal dumping sites, he became concerned about the health risk to society. He believes the dumping area is contaminating the air and water around the dumping site. 

“I had to be part of the solution to start cleaning up, and most importantly, educating myself and others to continuously take responsibility for our own waste and change our thinking about littering. This is a generational issue and needs a generational approach to unlearn all habits of littering,” Tsietsi pointed out. 

As part of his vision, Tsietsi plans to reduce the waste taken to landfill sites and to increase that which is taken directly from households to recycling plants. He also wants to encourage people to find creative ways of converting what has previously been wasted into something useful. “This action can encourage individuals to generate an income from waste,” he said.

Take action

Tsietsi invites all members of the Mangaung community to get involved in the project. This is your opportunity to make a difference on Mandela Day. You can;
provide sponsorship for educational content on effective waste management, economic opportunities, and health issues to the general public and to schools;
provide refuse bags, plastic gloves or hand-washing soap (used by community members in every clean-up session);
join in a collective effort to clean your community by meeting at designated schools or any designated community assembly point on a Saturday (contact 011 307 2005 or info@wesolve4x.com for more information).


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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