Author

Shi-Feng Sun

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Aug 2026

Energy Migration-Directed Orthogonal Emissive Nanocrystals for NIR-IIb Imaging Navigation toward Precise UV Photoactivation.

Upconversion-based photoactivation offers a transformative approach to precision medicine by leveraging near-infrared light to trigger specific chemical and biological activities. However, the lack of favorable photoswitchable agents combining deep-tissue high-resolution imaging with orthogonal photoactivation hinders...

Ye Li, Jia-Jun Li, Shi-Feng Sun et al. · Nano letters (Print) · 0 citations

Sep 2026

Oxygen-Gradient-Responsive Photosensitizing Gadolinium Phthalocyaninate for Self-Adaptive Type II/I Photodynamic Therapy Toward Heterogeneous Tumor Suppression.

The intrinsic spatial heterogeneity of oxygen within solid tumors remains a formidable barrier to photodynamic therapy (PDT). Traditional Type II photosensitizers are incapacitated by hypoxia, while oxygen-independent Type I agents are generally hindered by a kinetic bottleneck in reactive oxygen species (ROS) producti...

Wen Zhang, Meng-Ting Shi, Kai-Xin Geng et al. · Small · 0 citations