NIR-II emissive multifunctional AIEgen with single laser-activated synergistic photodynamic/photothermal therapy of cancers and pathogens

Biomaterials. 2020 Nov:259:120315. doi: 10.1016/j.biomaterials.2020.120315. Epub 2020 Aug 15.

Abstract

Despite the wide application of the traditional NIR-I phototheranostic platforms in basic research and clinical studies, problems such as tissue scattering, auto-fluorescence combined with aggregation caused quenching hamper precise image-guided phototherapy. Herein, we developed a multifunctional NIR-II phototheranostic platform using a novel AIE-based dye (ZSY-TPE) for single laser-activated imaging-guided combined photothermal and photodynamic therapies of tumors and pathogens. As confirmed through in vivo studies, the ZSY-TPE dots displayed precise and efficient high-performance NIR-II imaging-guided combination phototherapy against 4T1 tumor as well as S. aureus-infected mice models without any noticeable side effects. The current study demonstrates ZSY-TPE as a powerful phototheranostic platform for precise NIR-II fluorescence/PA imaging and synergistic photodynamic/photothermal therapy of tumors and bacterial infections.

Keywords: Aggregation-induced emission; Organic dye; Photodynamic therapy; Photothermal therapy; The second infrared channel.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Lasers
  • Mice
  • Nanoparticles*
  • Neoplasms* / drug therapy
  • Photochemotherapy*
  • Phototherapy
  • Photothermal Therapy
  • Staphylococcus aureus