All-in-One Theranostic Nanoplatform Based on Hollow MoSx for Photothermally-maneuvered Oxygen Self-enriched Photodynamic Therapy.Photodynamic therapy (PDT) kills cancer cells by converting tumor-dissolved oxygen into reactive singlet oxygen (1O2) using a photosensitizer under laser irradiation.  This nanoplatform could achieve the distinct in vivo fluorescence (FL)/photoacoustic (PA)/X-ray computed tomography (CT) triple-model imaging-guided photothermally-maneuvered Oxy-PDT.  Interestingly, the fluorescence and Oxy-PDT properties of O2@PFH@HMoSx-HSA/AlPc were considerably quenched; however, photothermal activation by 670 nm laser irradiation induced a significant increase in temperature, which empowered the Oxy-PDT effect of the nanoparticles. 
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