X-ray induced photoacoustic nanoprobe: Break depth dependency of bioimaging

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This project aims to develop a nanoprobe using an X-ray excited luminescence “nanolaser” as the local light source to activate coupled responsive photoacoustic sensors. In-situ imaging of specific biomarkers at the molecular level is key to understanding their roles in physiological and pathological processes, but current imaging techniques using fluorescent probes cannot detect biomarkers in deep tissues due to shallow light penetration. By capitalising on the tissue penetrating property of X-rays and acoustic waves and collecting acoustic waves as the read-out signal, real-time monitoring of biomarkers in deep tissues could be achieved, advancing detection technology for deep-tissue biomarkers.