What is materials science

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What is materials science

MacDiarmid Institute investigators discuss how materials science and nanotechnology can solve the big problems of our time.

May 8, 2019

Associate Professor Nicola Gaston: Can you imagine a future where electricity is practically free, where there's clean water available for everyone and a simple blood test taken at home can help diagnose some diseases?

The technology that can make each of those things possible is based on materials science. Materials are all around us; this coffee cup, this table, even this sugar I might put in the coffee. When we make things really small, as we do in nanotechnology, we create a material that has most of its substance at the surface. With sugar, that means it dissolves quickly. But in general what it means is that we can control the properties of that material with great precision. So we can take a material, any material - it could be a metal or it could be plastic - and we can play with the surface and give it new abilities. For example, we could make it anti-bacterial or we could make it absorb more light.

The MacDiarmid Institute is a network of New Zealand's best materials scientists. Materials science is the basis of all high-tech manufacturing, including sustainable environmental innovations such as new solar cells or carbon capture technologies for climate change mitigation. We work with existing industries and we also spinout new companies. In the past 15 years we have spun out 16 new companies.

Dr Ray Thomson: One of the really exciting things that the Investigators at MacDiarmid are working on is across this whole climate change area. Sequestering carbon dioxide, improving the efficiency of photovoltaic cells through to really advanced battery storage.

Associate Professor Nicola Gaston: If we want that future, a materially sustainable future, where everyone around the world can have clean water, personalised medicine, free electricity, we need materials technologies. In the MacDiarmid Institute we bring materials scientists together and we partner with industry to create intellectual property, jobs and wealth for New Zealand.