Professor Xiaogang Liu
Winner: 2024 Centenary Prize for Chemistry and Communication
National University of Singapore
For outstanding contributions to the understanding and optical manipulation of photon conversion in nanocrystals and their applications in X-ray and light-field imaging, and for excellence in communication.
Celebrate Professor Xiaogang Liu
I am deeply driven by the desire to change the world. My goal is to find solutions to a range of pressing issues, particularly those associated with materials, devices, and medical research.
Professor Liu’s research focuses on luminescent nanomaterials: tiny particles that emit light under specific lighting conditions. (To give a sense of scale, a fingernail grows about one nanometre per second, and a human hair is roughly 50,000 to 100,000 nanometres in diameter.) These particles are so small that thousands of them could fit across the width of a single hair.
One of Professor Liu’s most notable contributions is the development of new nanomaterials that glow in visible colours when exposed to invisible near-infrared light. This has profound implications, especially in the medical field. For example, these materials serve as advanced molecular probes that can track cancer cells, offering a more selective, sensitive, and cost-effective alternative to traditional biomarkers for cancer diagnosis.
In medical imaging, his team has devised new and safer X-ray imaging techniques that significantly enhance diagnostic and treatment guidance. They have also developed a prototype interactive mouthguard embedded with pressure-sensitive optical nanomaterials. By integrating these sensors into a flexible mouthguard, they have created a user-controlled device that operates through simple biting actions. This is a valuable advancement in assistive technology, making it easier for people with a disability or impairment to operate a computer, smartphone, or wheelchair.
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