articleJournal of the American Chemical SocietyFeb 12, 2026Closed access

Highly Expressive Bienzyme and Photothermal Effect Co-Enabled by the Co–O–Mn Bridge for Potentiating 1550 nm Light-Triggered Photodynamic Therapy

Chinese Academy of Sciences · Changchun Institute of Applied Chemistry · +5 more institutions

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Abstract

Development of single-atom nanocatalysts with photoresponsive and enzyme-like properties has opened innovative avenues for improving the tumor photodynamic therapy (PDT) effect. However, their further application was restricted by the insufficient adsorption/desorption for multireaction intermediates and poor light tissue penetration. Herein, we constructed mesoporous silica-supported, O-bridged asymmetric cobalt–manganese (Co–O–Mn) dual-atom nanozyme, coated on the surface of 1550 nm-excited upconversion (UC) nanoparticles and modified with polyethylene glycol (denoted as P/U@CoMnDA), for the PDT, thermal-enhanced enzyme dynamic therapy, and magnetic resonance imaging. Interestingly, the incorporation of…

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Authors

10

Topics & keywords

Keywords
  • Photothermal therapy
  • Photodynamic therapy
  • Nanomaterial-based catalyst
  • Photothermal effect
  • Substrate (aquarium)
  • Photon upconversion
  • Nanoparticle
  • Polyethylene glycol
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