A pioneer in the use of stem cell technology, Professor Alan Mackay-Sim led the world's first clinical trial using these cells to treat spinal cord injuries.
It's this research that has helped him become the 2017 Australian of the Year.
In a ceremony at Parliament House, the biomedical scientist was handed the Australian of the Year trophy by Prime Minister Malcolm Turnbull.
Professor Mackay-Sim says he wants to use the opportunity to highlight the value of medical research.
He has also emphasised the importance of investing in young people involved in science.