Here, we report the syntheses of two pentamethine cyanine dyes containing quinolinium
rings and substituted with either hydrogen (3) or bromine (4) at the meso carbon. The …

We have synthesized symmetrical carbocyanine dyes in which two 4-quinolinium rings are
joined by a pentamethine bridge that is meso-substituted with H or Cl. Irradiation of the …

Here we report the synthesis of seven symmetrical carbocyanine dyes in which two nitrogen-
substituted benz [e] indolium rings are joined by a pentamethine bridge that is meso …

In many settings, molecular testing is needed but unavailable due to complexity and cost.
Simple, rapid, and specific DNA detection technologies would provide important alternatives …

The readily available cationic dye 3‐Br binds to DNA as was shown by UV, fluorescence
and CD spectroscopy. The electronic spectra of the quinolizinium salt 3 exhibit significant …

Photodynamic therapy is an effective and minimally invasive treatment method for cancer. A
deeper understanding of the photocytotoxicity mechanism of cyanine dyes is necessary for …

The photobleaching of the cyanine dyes YO and YOYO has been investigated for both free
and DNA-bound dyes, using absorption and fluorescence spectroscopy coupled with …

The associative interactions of indolo [2, 3‐b]‐quinolizinium bromide with DNA and its DNA
photocleavage properties were studied in detail. Absorption and emission spectroscopy …

Ammonium-substituted anthraquinone derivatives have been found to catalyze DNA
cleavage upon irradiation with 350 nm light. Picosecond laser spectroscopy demonstrates …

The feasibility to induce oxygen-independent tumour cell kill by two-photon excitation of
copper tetrasulfophthalocyanine (CuPcS 4) was studied in Jurkat cells in vitro. Following …