Imagine if killing flu viruses and other microbes were as simple as turning on a light. Exposing a unique surface coating to light may in fact hold the key to protecting you from virtually all viruses and bacteria, including the feared avian flu. Laboratory testing of a novel, permanent nano-coating, developed in collaboration by researchers at North Carolina State University College of Textiles and Emory University School of Medicine, has been shown to kill or inactivate most viruses and bacteria when exposed to visible light. Early tests have shown that the coating kills 99.9 percent of influenza viruses and 99.99 percent of vaccinia virus, which causes rash, fever, head and body aches.
The coating technology was developed by Dr. Stephen Michielsen, associate professor in NC States
NC State has applied for a patent on the invention, which has been licensed to Research Triangle Park-based start-up LaamScience, Inc. The company whose name stands for Light Activated Anti Microbials has raised more than $400,000 in seed financing from
Prototypes will be used in performance trials targeting hospital areas including waiting rooms. The company is also developing a room air purifier that incorporates its nano-coated filter technology. Other potential application areas include anti-viral filter systems for airplanes and businesses, as well as for a variety of uses for first responders and the military, including anti-viral masks. Perhaps equally important, the invention may be used to make everyday objects resistant to viruses and bacteria in the presence of light.
We have many exciting opportunities to use these proprietary coatings to stop infection before it causes disease and death, says Tom Roberg, chief executive officer of LaamScience. The technology developed at NC State and
The invention grew out of Michielsens research into nanotechnology and its use to modify the surface of polymers and fibers. The thin coating is a type of dye that can be applied to the surface of all types of fabrics and materials. When exposed to light, the coating acts as a photo catalyst, sparking a chemical reaction with air and killing most viral and bacterial microbes.
In the presence of light, a specific reaction takes place on the surface that makes the air poisonous to the microbes, yet harmless to people, Michielsen says. The coating doesnt wear out and continually regenerates so its able to continue killing viruses again and again.
Michielsen presented the results of his coating research last fall as part of the Achieve More Field Day series, which is organized by the NC States Office of Extension, Engagement and Economic Development. The Achieve More Field Day invites industry executives, venture capitalists and science and technology entrepreneurs to campus to learn more about NC States research, resources and partnership opportunities. Roberg heard Michielsens presentation and approached him and the university about licensing, patenting, and commercializing the coating technology.
This is an outstanding example of how quickly breakthrough research results can be brought to market when the right conditions are present, said Dr. A. Blanton Godfrey, dean of the
LaamSciences headquarters and laboratory are in the Becton Dickinson Technologies incubator space in
The potential uses for this technology are unlimited, says Dr. Patrick Mize, LaamSciences chief science officer. These are applications that can change the world.