An electron microscopic technique has been developed to visualize the binding sites of acridine orange to DNA within fixed human leukemic bone marrow cells. This electron microscopic technique provides both higher resolution and increased chemical specificity for discriminating the nuclear binding sites of acridine orange than does the previous fluorescent light microscopy. Acridine orange bind...

The neutrophil count, immature:total neutrophil ratio, C reactive protein assay, nitroblue tetrazolium test and an acridine orange leucocyte cytospin test were evaluated for the diagnosis of neonatal bacteraemia. The acridine orange leucocyte cytospin test gave the highest specificity and positive predictive accuracy, but was less sensitive than the neutrophil count, C reactive protein assay or...

In the crystal structure of the title compound, C(21)H(18)N(+)·CF(3)OS(3) (-), the cations form inversion dimers through π-π inter-actions between the acridine ring systems. These dimers are further linked by C-H⋯π inter-actions. The cations and anions are connected by C-H⋯O, C-F⋯π and S-O⋯π inter-actions. The acridine and benzene ring systems are oriented at a dihedral angle of 76.8 (1)°with r...

In the crystal structure of the title compound, C(23)H(20)NO(2) (+)·CF(3)SO(3) (-), adjacent cations are linked through a network of C-H⋯π and π-π inter-actions, and neighboring cations and anions via C-H⋯O inter-actions. The acridine and benzene ring systems are oriented at a dihedral angle of 31.4 (1)°. The carboxyl group is twisted at an angle of 66.3 (1)° relative to the acridine skeleton. ...

In the crystal of the title compound, C(24)H(22)NO(2) (+)·CF(3)SO(3) (-), adjacent cations and anions are connected through C-H⋯O, C-H⋯F and S-O⋯π inter-actions, while neighboring cations via π-π inter-actions [centroid-centroid distance = 3.962 (2) Å]. The acridine and benzene ring systems are oriented at a dihedral angle of 14.6 (1)°. The carboxyl group is twisted at an angle of 87.6 (1)° rel...

In the crystal of the title compound, C(21)H(15)ClNO(2) (+)·CF(3)SO(3) (-), adjacent cations are linked through C-H⋯π and π-π inter-actions [centroid-centroid distance = 3.987 (2) Å], and neighboring cations and anions via C-H⋯O and C-F⋯π inter-actions. The acridine ring system and benzene ring are oriented at a dihedral angle of 1.0 (1)° while the carboxyl group is twisted at an angle of 85.0 ...

The use of digitonin to permeabilize the plasma membrane of Trypanosoma brucei procyclic and bloodstream trypomastigotes allowed the identification of a non-mitochondrial nigericin-sensitive Ca2+ compartment. The proton ionophore carbonyl cyanide p-trifluoromethoxyphenylhydrazone (FCCP) was able to cause Ca2+ release from this compartment, which was also sensitive to sodium orthovanadate. Prein...