 I invite you to do one thing with me. Take a deep breath in. Then, breathe out. We breathe in oxygen, breathe out carbon dioxide, and other waste. In this waste, there are hundreds of biomarkers, the chemical trace that can be slow to how healthy you are, or not. If we can precisely measure these biomarkers in breath, we can constantly monitor our physical health condition and diagnosed disease, without any invasive process like needles. For example, the high level of phacetone in breath indicates diabetes. And there are more than 1.4 million diabetes in Australia, and that costs people a lot. To make it worse, most of patients have to do daily blood tests to monitor the blood sugar level. And my research aim to replace this painful blood test to a simple breath test. But breath is a complex mixture of gases, and we need a sensor that is very sensitive and reliable. So I designed and create a nanowire sensor to detect the acetone in our breath. Nanowire is a tiny, very structure, and a hundred times thinner than human hair. And I should say I grow the nanowire. I guide the growth of crystal in a specialized chamber, which is run by a digital machine that I write computer code for to tune the growth condition in the chamber, encouraging the crystal to form a highly-ordered nanostructure. What I end up with is a bunch of nanowire with exactly the same size and shape. And this nanowire absorbs acetone easily. And when you breathe on this nanowire sensor, a chemical reaction happens. The electron moves from acetone molecule to the nanowire and making it more conductive. We know there is acetone in breath because we can measure the electricity change in the nanowire. And my research has produced the nanowire sensor that can tell you whether you have diabetes. Of course, this is not the end of story. Next, I will insert this nanowire sensor into a whistle-like structure so patients can directly breathe in to monitor the acetone level. By manipulating the nanowire structure and the surface chemistry, we can also detect other diseases by our markers, like the kidney disease and even liver cancer. In the future, your wasted breath might just help us blow disease away.