Single photon DNA photocleavage at 830 nm by quinoline dicarbocyanine dyes

K Basnet, T Fatemipouya, AS Lorenz… - Chemical …, 2019 - pubs.rsc.org
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 …

Oxidative cleavage of DNA by pentamethine carbocyanine dyes irradiated with long-wavelength visible light

CT Mapp, EA Owens, M Henary, KB Grant - Bioorganic & Medicinal …, 2014 - Elsevier
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 …

DNA photocleavage in the near-infrared wavelength range by 2-quinolinium dicarbocyanine dyes

EO Ahoulou, KK Drinkard, K Basnet, A St. Lorenz… - Molecules, 2020 - mdpi.com
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 …

Cleavage at 5-methylcytosine in DNA by photosensitized oxidation with 2-methyl-1, 4-naphthoquinone tethered oligodeoxynucleotides

H Yamada, K Tanabe, S Nishimoto - Bioorganic & medicinal chemistry …, 2005 - Elsevier
Photosensitized one-electron oxidation of 5-methylcytosine in DNA by 2-methyl-1, 4-
naphthoquinone, attached to 5′-end of an oligodeoxynucleotide strand, produced 5 …

Cationic anthraquinone derivatives as catalytic DNA photonucleases: mechanisms for DNA damage and quinone recycling

B Armitage, C Yu, C Devadoss… - Journal of the American …, 1994 - ACS Publications
Ammonium-substituted anthraquinone derivatives have been found to catalyze DNA
cleavage upon irradiation with 350 nm light. Picosecond laser spectroscopy demonstrates …

A self-sensitized photoreaction of rhodacyanine dye, MKT 077

M Kawakami, M Suzuki, H Kawai, K Ogawa… - Tetrahedron letters, 1998 - Elsevier
A rhodacyanine dye, 1-ethyl-2-[[3-ethyl-5-(3-methylbenzothiazolin-2-ylidene)-4-
oxothiazolidin-2-ylidene]-methyl] pyridinium chloride (MKT 077, 1) was oxidized by self …

Photobleaching of asymmetric cyanines used for fluorescence imaging of single DNA molecules

C Kanony, B Åkerman, E Tuite - Journal of the American Chemical …, 2001 - ACS Publications
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 …

Direct and sensitized photooxidation of cyanine dyes

GW Byers, S Gross, PM Henrichs - Photochemistry and …, 1976 - Wiley Online Library
Direct photooxidation of cyanine dyes was found to be markedly enhanced by formation of
hypsochromically shifted (H) aggregates. Singlet oxygen was found to attack many cyanines …

DNA photoreacts by nucleobase ring cleavage to form labile isocyanates

L Buschhaus, J Rolf, K Kleinermanns - Physical Chemistry Chemical …, 2013 - pubs.rsc.org
Differential infrared absorption spectroscopy was used to study the formation of isocyanates
and further photo-products in the oligonucleotides dG10, dC10 and dT10 and in their …

Interaction of carbocyanine dyes with DNA: synthesis and spectroscopic studies

B Jędrzejewska, A Bajorek… - Applied …, 2013 - journals.sagepub.com
Six carbocyanine dyes have been synthesized and their interactions with DNA have been
investigated for their prospective use as fluorescent markers in molecular biology. The …