1. Development of a small-molecule-based activatable photoacoustic probe <br>2. A caspase-3 activatable photoacoustic probe for in vivo imaging of tumor apoptosis <br>3. Quantitatively Visualizing The Activity of MMP-2 Enzyme In Vivo Using a Ratiometric Photoacoustic Probe <br>4. Aluminum Naphthalocyanine Conjugates as MMP-2-Activatable Photoacoustic Probes for In Vivo Tumor Imaging<br>5. Alkaline phosphatase-triggered self-assembly of near-infrared nanoparticles for the enhanced photoacoustic imaging of tumors <br>6. A TME-activated In Situ Nanogenerator for magnetic resonance/fluorescence/photoacoustic imaging <br>7. Near-infrared II photoacoustic probes for nitric oxide sensing <br>8. Monitoring tumor growth with a novel NIR-II photoacoustic probe <br>9. A high-contrast photoacoustic agent with near-infrared emission <br>10. Mitochondria-Targeted Photoacoustic Probe for Imaging of Hydrogen Peroxide in Inflamed Mouse Model <br>11. Fluoro-Photoacoustic Polymeric Renal Reporter for Real-Time Dual Imaging of Acute Kidney Injury <br>12. ALP-activated probe for diagnosis of liver injury by multispectral optoacoustic tomography <br>13. Photoacoustic Probe of Targeting Intracellular Staphylococcus aureus Infection with Signal-Enhanced by Self-Assembly <br>14. Bioengineered bacterial vesicles for optoacoustics-guided phototherapy <br>15. A practical guide to photoswitching optoacoustics tomography <br>16. Oxygen-embedded Quinoidal Acene Based Semiconducting Chromophore Nanoprobe for Amplified Photoacoustic Imaging <br>17. A general strategy to optimize the performance of aza-BODIPY-based probes for enhanced photoacoustic properties <br>18. Functionalized Contrast Agents for Multimodality Photoacoustic Microscopy, Optical Coherence Tomography, and Fluorescence Microscopy Molecular Retinal Imaging