Producing bone cells for use in bio-glass bonding, October 2001.

UNITED KINGDOM - OCTOBER 23: A sample of 'bio-glass' foam being analysed to assess the attachment of human osteoblasts to it at Chelsea & Westminster Hospital, London. Larry Hench, Professor of Ceramic Materials at Imperial College, London, invented bio-glass, the first man-made material that can bond with living tissue. Bio-glass forms a porous scaffold for new bone cells to grow on and then dissolves, releasing substances that act like fertilisers, encouraging new cells to fill the cast. (Photo by SSPL/Getty Images)