Dr Amanda Barnard is the first woman and the first Australian to win the Foresight Institute Feynman Prize for Nanotechnology (Theory), a pinnacle of achievement in the world of science. The prize is the latest in a string of prestigious titles Dr Barnard has accrued.
A World Wonder
Dr Barnard’s soft Australian accent hints at a life lived on many continents. When she was studying for her PhD (applied physics) in theoretical condensed matter physics at RMIT University in Melbourne, she was living in Toronto, Canada, and commuting back to Melbourne. She took just 17 months to complete her PhD.
She got the job, at the Argonne National Laboratory, a government lab in Chicago, USA. But after a couple of years, she left to work at the University of Oxford. “One of the great things about science is our ability to travel, because science is the same language all over the world. Maths is the universal language that we speak,” she says.
A Gem of a Discovery
It’s hard to imagine something as tiny as a nanoparticle. They are one billionth of a metre in size and make up a sort of invisible world. About 15 years ago, Dr Barnard started using supercomputers to study them. It was the most brilliant gem that captured her attention: diamonds. “I was thinking: let’s try to understand how the different shapes, sizes and structures of diamond nanoparticles can impact their stability and their properties,” she says.
Dr Barnard discovered that diamond nanoparticles have unique electrostatic properties that can repel or attract, similar to a magnet. She also found that their surfaces link up to form a porous aggregate, “like a very ordered sponge”. Her research is potentially life-changing for millions of people around the world.
For example, a study at the University of California, Los Angeles (UCLA) is investigating whether diamond particles can more effectively deliver drugs such as chemotherapy, insulin and gene therapy. Dr Barnard’s research underpins this work and her findings could mean that the amount of drugs needed to deliver the same treatment will be about 10 times less.
“We can target the disease better,” explains Dr Barnard. “It’s a slow release because of the porosity of the diamond particles and being able to have something like a ‘chemotherapy patch’ to deliver the drug slowly, over an extended period, will have less side effects.”
It was Dr Barnard’s years-in-the-making diamond nanoparticle discovery that secured her the 2014 Feynman Prize. She is the first woman to win it in the 22-year history of the prize – a promising development and one that this scientist accepts with deep responsibility.
Dr Barnard advises young scientists to gain experience – in life and in work – by travelling early in their career. But, she says, it’s crucial to bring their learning home. After moving back to Melbourne in 2008, she took up a position with Australia’s national science agency, the Commonwealth Scientific and Industrial Research Organisation (CSIRO). She draws on her experience gained from years of working abroad to collaborate with fellow scientists around the world.
“The days of clustering together in one city or one institution – or even one country – are gone. We work globally,” she says. “Over the years of that diamond project, I worked with people in Russia, the UK, Italy, the United States, Japan and Germany. With electronic media these days, we can be in contact every day.”