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  • New visible light photocatalyst kills bacteria, even after light turned off

    Jian Ku Shang, a professor of materials science and engineering, holds a sample of a new photocatalytic material that uses visible light to destroy harmful bacteria and viruses, even in the dark.

    Jian Ku Shang, a professor of materials science and engineering, holds a sample of a new photocatalytic material that uses visible light to destroy harmful bacteria and viruses, even in the dark.

    Photo by L. Brian Stauffer

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  • Editor's note: To contact Jian Ku Shang, call 217-333-9268; e-mail: jkshang@illinois.edu.