https://www.selleckchem.com/
Near infrared (NIR) light activated fluorescence imaging and photodynamic therapy hold great potential for tumor treatment in deep tissues. Development of effective theranostic nanosystems to integrate both functions is becoming an attractive route for tumor diagnosis and therapy. Herein, nitrogen (N), sulfur (S) co-doped graphene quantum dots (GQDs) were engineered on the surface of upconversion nanoparticles (UCNPs) to form GUCNP nanosystems, where fluorescence resonance energy transfer (FRET) from UCNPs to GQDs could significantly facilitate the NIR fluo
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