Coating Developed to Prevent Fingerprints on Computer Touch Screens

Recently, researchers of the Max Planck Institute for Polymer Research successfully developed a screen coating from candle soot along with silica, which is capable of repelling fluids.

This process has been described by Technology Review, but first outlined in a paper published in Science Magazine.

First, scientists coated a slide with candle soot with "spheres of soot that were 30 to 40 nanometers in diameter, stacked loosely and producing the right kind of surface texture: about 80 percent empty and 20 percent spheres."

After soot cover, scientists coated the slide with a silica shell, which was 25 nanometers thick. Finally, they bakes it at exactly 600 degree Celsius until the slide became clear, reports Tech.Blorge.Com.

The new process helps resolve the problem of finger prints on touch screen devices. Various test results of this process have shown that this soot/silica coating can repel several types of solvents, oils and water. In fact, pictures released by the Max Planck Institute show oils and water falling off the touchscreen surface.

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