Photophysics and photobiology of novel liposomal formulations of 2,9(10), 16(17),23(24)-tetrakis[(2-dimethylamino)ethylsulfanyl]phthalocyaninatozinc(II)
Six novel liposomal formulations of 2,9(10),16(17),23(24)-tetrakis[(2-dimethylamino)ethylsulfanyl]phthalocyaninatozinc(II) (Pc9) were investigated to establish how the environments affect their photophysical and photobiological properties. The incorporation efficiency and solubility during a time pe...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/16680 |
| Acceso en línea: | http://hdl.handle.net/11336/16680 |
| Access Level: | acceso abierto |
| Palabra clave: | Photodynamic Therapy Phthalocyanine Singlet Oxygen Photocytotoxicity Liposome Kb Cells https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Sumario: | Six novel liposomal formulations of 2,9(10),16(17),23(24)-tetrakis[(2-dimethylamino)ethylsulfanyl]phthalocyaninatozinc(II) (Pc9) were investigated to establish how the environments affect their photophysical and photobiological properties. The incorporation efficiency and solubility during a time period were evaluated. All Pc9-liposomal formulations were efficient singlet oxygen quantum yield generators. The photobiological potentials were evaluated on human nasopharynx KB carcinoma cells. None of the formulations studied showed cytotoxic effects in the absence of light, whereas all of them showed good performance after irradiation. The 50% inhibition of cell proliferation (IC50) was in the range of 0.21–0.47 μM for Pc9-loaded liposome formulations. A lysosomal localization was found for S-PEG as well as for S. |
|---|