Polish researchers at Gdansk University of Technology (PG) have developed a magnetic paint that can protect walls from potential pathogens. In addition, the paint removes stains and even purifies the air from pollutants. PG reports in a press release.
Izabela Malinowska, a PhD student in chemical engineering, developed the material under the supervision of Professor Anna Zielińska-Jurek. The paint has a chemical mechanism that allows it to remove stains by itself. “A stain is removed by itself, so pathogens have no chance to settle,” Malinowska said.
Upon contact with contamination, this effect kicks in. By means of a catalyst activated by light, dirt, grease and pathogens are broken down. organic nitrogen pollution in the air is also counteracted by the paint. “Because the paint contains zinc, there is a strong biological protective layer where pathogens cannot adhere. We tested this with Staphylococcus aureus and Escherichia coli, among others,” says Malinowska.
Anna Zielińska-Jurek says that artificial light is sufficient for the protection to work, and that this protection remains active even when the light goes out. “Many products currently available on the market contain titanium dioxide, which becomes active only through ultraviolet radiation. This paint does not have that disadvantage,” said Zielińska-Jurek.
The paint can be applied as a coating to various substrates. This makes it possible to paint not only walls, but also wood, metal and plastic. For example, this paint could be used on elevator buttons and door handles to prevent the spread of viruses. The paint also lasts a long time and the material can even be added to existing paints. Malinowska has already patented her invention.
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