
By Pro for nano
A unique nanotechnology ink formulation, GC Halo®, against Staphylococcus aureus and Escherichia coli, has shown significant results in destroying the bacteria. The aim of the project was to develop innovative nanotechnology and graphene oxide based antimicrobial inks and coatings and was awarded funding in 2021 by Lithuania’s Agency for Science, Innovation and Technology (MITA). The project sought to test GC Halo’s efficacy on textile samples that could be used in air filters to enhance indoor air quality. The Nature Research Center in Vilnius, Lithuania, formed part of the testing and evaluation of the ink’s effectiveness which were applied on textile samples and tested according to the ISO 20743 standard. A log 7 to log 8.8 reduction in bacteria count (at least 99.99999%) against S. aureus was observed in the textile samples that were coated with GC Halo after 24 hours. The GC Halo® ink was formulated and applied to textiles making a thin barrier of graphene oxide and nanosilver. The applied coating proved to be very effective. The count of bacteria decreased from tens of millions to single digits in 24 hours. This is an amazing result and it means that better air filters can be produced to ensure clean and fresh air for hospitals, schools and other public locations.