Abstract
The synthesis of novel, tetracationic zinc (1Q) and metal-free (2Q) phthalocyanines (Pcs) bearing 4-((7-(trifluoromethyl)quinolin-4-yl)oxy) units on the periphery have been reported. The new compounds were characterized by using elemental analysis, 1H NMR, UV-vis and FT-IR spectroscopy and mass spectrometry. The binding properties of both 1Q and 2Q to CT-DNA are investigated in water by absorption and fluorescence spectroscopy. The quenching effect of all quaternized phthalocyanines (1Q and 2Q) on the fluorescence intensity of 4′,6-diamidino-2-phenylindoledihydrochloride (DAPI Gold)-DNA complex was determined. This study showed that the water-soluble quaternized zinc (1Q) and metal-free phthalocyanines (2Q) exhibit efficient DNA-binding activity.
Original language | English |
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Pages (from-to) | 475-482 |
Number of pages | 8 |
Journal | Dyes and Pigments |
Volume | 96 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2013 |
Keywords
- Aggregation
- DNA
- Photodynamic therapy
- Phthalocyanines
- Quaternized
- Water soluble