Two-photon absorbing chromophores for photodynamic therapy: molecular engineering and in vivo applications

Recent examples of our works in the field of molecular engineering of chromophores for two-photon photodynamic therapy (PDT), and their vectorization into biological medium are presented and discussed. In a first section of this article, we show that a commercial amphiphilic diblock copolymer can be used as a micellar container for efficient delivery of s standard two-photon PDT sensitizer into cells. In a second section, we show how a simple molecular engineering strategy can be used to improve the performances of two-photon PDT sensitizer in the biological transparency-window.

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