New cationic heptamethinecyanine-graphene hybrid materials

A Study on the Structure, Optical Properties and Cellular Localization of Novel 1,3-Benzothiazole-Substituted BODIPYs

“…Finally, Sansalone et al sought to investigate the conformational isomers with antiperiplanar and periplanar arrangements of BODIPY chromophores connected to a benzoxazole, benzothiazole or nitrobenzothiazole through an olefinic bridge with trans configuration [46] (Figure 3). In the context of our studies on the synthesis of new fluorophores [47], recognizing the need for improved BODIPY derivatives for biomedical applications and intrigued by the interesting properties endowed in fluorescent probes by the BZT moiety, we set out to perform a more detailed study on BZT-substituted BODIPYs. Thus, a library of six BZTsubstituted BODIPYs was prepared through modifications of 8-phenyl BODIPY at C3, C5 and C6 (TC495-TC498, TC500 and TC514).…”

“…Moreover, the cellular localization of the new dyes, their fluorescence stability, spectral properties and toxicity were studied in both living and fixed fibroblasts using time-lapse fluorescent imaging and confocal microscopy. In the context of our studies on the synthesis of new fluorophores [47], recognizing the need for improved BODIPY derivatives for biomedical applications and intrigued by the interesting properties endowed in fluorescent probes by the BZT moiety, we set out to perform a more detailed study on BZT-substituted BODIPYs. Thus, a library of six BZT-substituted BODIPYs was prepared through modifications of 8-phenyl BODIPY at C3, C5 and C6 (TC495-TC498, TC500 and TC514).…”

Graphene performs the role of an electron donor in covalently interfaced porphyrin-boron azadipyrromethene dyads and manages photoinduced charge-transfer processes

“…[23][24][25][26] Having said that, the covalent functionalization of graphene with NIR dyes beyond phthalocyanines, 10,16,17,27,28 with the central objective of the elucidation of photoinduced electron donor-acceptor interactions, has been rarely examined. 29,30 Moreover, chromophore dyads covering the Vis-NIR region, covalently incorporated onto graphene sheets, in which illumination causes graphene to donate electrons, are also scarce, if any at all. Interestingly, supramolecular interactions of azaBDP with non-covalently interacting graphene/Zn-porphyrin yielded an all-supramolecular azaBDP/Zn-porphyrin/graphene nanoensemble, in which graphene acts as a nanoplatform for the aggregation of azaBDP/Zn-porphyrin altering its electronic interactions, while conversely hindering precise conclusions on photophysical events from being reached.…”