How laboratory-grown organs will transform our lives

With people living longer than ever, being able to replace bits of the human body as they wear out has become a new frontier in medicine

Most babies born in 1900 died before the age of 50; 100 years later life expectancy in the UK now exceeds 80 years, with the number of over-65s expected to double by 2030. This trend is radically changing the age demographics of the population and creating a new set of challenges for engineers. One of the most significant of these is to give people a higher quality of life in their old age.

Significant progress has been made; 300,000 hip replacements are now performed annually worldwide, releasing people from pain, and extending the active period of their lives by 20 years or more. The success of these implants has led scientists to develop a new type of biomaterial that is promising to do for medicine what silicon did for computing.

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