The Orthogonal α‐meso‐Linked bisBODIPY Photosensitizers Demonstrate Effective Two‐Photon Fluorescence Imaging and Photodynamic Therapy
Luying Guo,
Xing Guo,
Huiquan Zuo
et al.
Abstract:Hypoxic tumor microenvironments pose significant challenges to the clinical translation of cancer photodynamic therapy (PDT). While heavy atom‐free Type‐I boron dipyrromethenes (BODIPYs) photosensitizers can alleviate this challenge by reducing oxygen dependency, but they remain scarce. Herein, heavy‐atom‐free α,meso‐linked bisBODIPYs were designed and synthesized. These bisBODIPYs exhibit remarkable red‐shifted emission (λemmax ~670 nm), large Stokes shifts (~4480 cm‐1) and they are capable of producing both … Show more
“…DFT and TD-DFT studies were in agreement with the experimental observations. Recently, such covalently linked BODIPY–BODIPY dyads 32 have been used for the generation of reactive oxygen species to test their ability as photosensitizers for therapeutic applications. Our preliminary studies also revealed that both triads 6 and 7 generate reactive oxygen species (ROS) when the triads in toluene were irradiated in the presence of TEMPO.…”
Two covalently linked unique triads containing one 3-pyrrolyl BODIPY unit and two BODIPY units were synthesized and studies showed the possibility of singlet–singlet energy transfer from the BODIPY units to the 3-pyrrolyl BODIPY unit in both triads.
“…DFT and TD-DFT studies were in agreement with the experimental observations. Recently, such covalently linked BODIPY–BODIPY dyads 32 have been used for the generation of reactive oxygen species to test their ability as photosensitizers for therapeutic applications. Our preliminary studies also revealed that both triads 6 and 7 generate reactive oxygen species (ROS) when the triads in toluene were irradiated in the presence of TEMPO.…”
Two covalently linked unique triads containing one 3-pyrrolyl BODIPY unit and two BODIPY units were synthesized and studies showed the possibility of singlet–singlet energy transfer from the BODIPY units to the 3-pyrrolyl BODIPY unit in both triads.
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