Radiation-chemical reaction of 2,3,5-triphenyl-tetrazolium chloride in liquid and solid state

Ultrafast Photogeneration of a Tetrazolinyl Radical

“…Both the spectral position and width agree with the characteristic signal of TTCC, as identified in the slow photodynamics of TTC via flash-photolysis. [11] Pulse radiolysis of TTC [12] and electrochemical studies of ditetrazolium salts [24] substantiate the assignment by absorption signatures of tetrazolinyl radicals that are similar to the The formation of TTCC is strongly solvent-dependent (Figure 2 b). To quantify the stabilizing influence of the solvent on 2, an empirical polarity scale of the solvent can be an appropriate measure.…”

Effect of electron beam irradiation on the structural properties of poly(vinyl alcohol) formulations with triphenyl tetrazolium chloride dye (TTC)

“…The a*/b* ratios were 1.81, 1.72 and 1.30 for the same films exposed to the 100 kGy dose. Also, for the same films irradiated at 150 and 200 kGy, the ratios were calculated to be 1.46, 1.68, Kovacs et al (1996) have reported that g-ray irradiation of colourless aqueous and alcoholic solutions of the TTC dye results in the formulation of stable pink coloured triphenyl formazan composites. The formation of triphenyl formazan was observed probably through a free radical intermediate of the radiolytic reduction process.…”

“…TTC is oxidized to aldoses and ketoses and is thereby reduced to highly coloured water insoluble triphenyl formazan. The following reaction scheme is assumed to take place upon electron beam irradiation (Kriminskaya et al 1988, 1991, Kovacs et al 1996:…”

Dosimetry characterization of tetrazolium violet-polyvinylalcohol films

“…The film systems were suggested for dosimetry purposes (0.1-100 kGy) in gelatine, polyvinylalcohol (PVA), polyvinylacetate and polyvinylpyrrolidone (Pikaev and Kriminskaya, 1998). Proposed application fields involve radiology, radiobiology (Gierlach and Krebs, 1949) and radiation processing (Kova´cs et al, 1996).…”