Two-Photon Fluorescence Imaging and Therapy of Cancer Cells with Anisotropic Gold-Nanoparticle-Supported Porous Silicon Nanostructures

In this work, we prepared porous silicon (pSi) nanostructures decorated with gold nanoparticles, as probes for cell tissue imaging under two‐photon excitation. We also demonstrated that the Au/pSi nanosystems induced cytotoxicity and phototoxicity under two‐photon excitation.