单线态氧
化学
氧化剂
催化作用
光动力疗法
生物相容性
光化学
量子产额
黑磷
光热治疗
氧气
磷
纳米技术
有机化学
材料科学
光电子学
物理
荧光
量子力学
作者
Hui Wang,Xianzhu Yang,Wei Shao,Shichuan Chen,Junfeng Xie,Xiaodong Zhang,Jun Wang,Yi Xie
摘要
Benefiting from its strong oxidizing properties, the singlet oxygen has garnered serious attentions in physical, chemical, as well as biological studies. However, the photosensitizers for the generation of singlet oxygen bear in low quantum yields, lack of long wavelength absorption band, poor biocompatibility, undegradable in living tissues, and so on. Here we first demonstrate the exfoliated black phosphorus nanosheets to be effective photosensitizers for the generation of singlet oxygen with a high quantum yield of about 0.91, rendering their attractive applications in catalysis and photodynamic therapy. Through in vitro and in vivo studies, the water dispersible black phosphorus nanosheets show notable cancer therapy ability. In addition, the photodegradable character of black phosphorus from element to biocompatible phosphorus oxides further highlights its therapeutic potential against cancer. This study will not only expand the breadth of study in black phosphorus but also offer an efficient catalyst and photodynamic therapy agent.
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