Self-healing glass: A cracking discovery from Japan

Yu Yanagisawa, a chemistry researcher at the University of Tokyo, on December 25, 2017 presses together two pieces of resin glass together to repair them. Yanagisawa has developed – by accident – a new type of glass that can be repaired simply by pressing it back together after it has cracked. PHOTO | TORU YAMANAKA | AFP

What you need to know:

  • He made the breakthrough by chance while investigating adhesives that can be used on wet surfaces.
  • In a lab demonstration for AFP, Yanagisawa broke a glass sample into two pieces.

  • He then held the cross sections of the two pieces together for about 30 seconds until the glass repaired itself.

TOKYO

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