Self-sterile surfaces through covalent grafting
DeBogy Molecular Inc. is a Michigan early-stage company that uses transformative technology to permanently modify surfaces to eliminate viruses and germs on contact. Permanent self-sterile surfaces are created by covalently grafting biocidal molecules onto numerous substrates. The aim of the plasma treatment is to activate the surfaces and thus optimally prepare them for the grafting process.
In this example, a PVC sample is activated with cold atmospheric plasma from the piezobrush® PZ2 .
Another setup shows the use of the piezobrush® PZ2 for argon plasma activation using the Multigas nozzle.
The image below shows a comparison of the contact angles before and after plasma treatment. The drop on the left untreated side of the substrate is very round and therefore wets the surface poorly. The three drops on the right plasma-treated side, on the other hand, are much flatter and wider, which indicates increased surface wettability.
Plasma treatment can achieve uniform wetting of the surface, so that the surface is subsequently also uniformly grafted by biocidal molecules and permanently self-sterile.
We at relyon plasma are always excited to work with partners like DeBogy Molecular, that are on the driving innovation and change in our industry.
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