Abstract
Image-guided phototherapy is extensively considered as a promising therapy for cancer treatment. To enhance translational potential of this modality, we developed a single agent-based biocompatible nanoplatform that provides both real time near-infrared (NIR) fluorescence imaging and combinatorial phototherapy with dual photothermal and photodynamic therapeutic mechanisms. The developed theranostic nanoplatform consists of two building blocks: (1) silicon naphthalocyanine (SiNc) as a NIR fluorescence imaging and phototherapeutic agent and (2) a copolymer, poly(ethylene glycol)-block-poly(e-caprolactone) (PEG–PCL) as the biodegradable SiNc carrier. Our simple, highly reproducible, and robust approach results in preparation of spherical, monodisperse SiNc-loaded PEG–PCL polymeric nanoparticles (SiNc-PNP) with a hydrodynamic size of 37.66 ± 0.26 nm (polydispersity index = 0.06) and surface charge of −2.76 ± 1.83 mV. The SiNc-loaded nanoparticles exhibit a strong NIR light absorption with an extinction coeffi...
Published Version
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