Alex Zaretski, the scientific founder of Grolltex Inc., examines a sheet of copper on which an invisible layer of graphene is laid. The company hopes its material will be used in innovative new electronics, including flexible computer displays and foldable cell phones.

Alex Zaretski, the scientific founder of Grolltex Inc., examines a sheet of copper on which an invisible layer of graphene is laid. The company hopes its material will be used in innovative new electronics, including flexible computer displays and foldable cell phones. Photo by Jamie Scott Lytle.

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Jeff Draa, co-founder and CEO of Grolltex Inc., is flexing his experience in the semiconductor industry to accelerate his new venture spun out of UC San Diego.

— Sci-fi writers often dream up gadgets that scientists and engineers later bring to life...

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