Sonochemical dosimetry: A comparative study of Weissler, Fricke and terephthalic acid methods

Importance of Locations of Iron Ions to Elicit Cytotoxicity Induced by a Fenton-Type Reaction

“…Most notably, the results shown in Figure 4 A,B demonstrated that 1 mM or a higher concentration of H 2 O 2 or Fe 2+ was required to break DNA under the hypoxic conditions predicted in the intracellular space. The localized generation of • OH by the UV decomposition of H 2 O 2 reported in a previous study [ 34 ] and the results shown in Figure 5 B, Figure 6 and Figure 7 in the present study showed that the continuous production of 1 mM or higher of • OH was required to break DNA.…”

“…The suppression of DNA breakage by caffeine, DMSO, and sucrose was consistent with their previously reported • OH-canceling abilities [ 33 ]. The • OH-scavenging effects of terephthalate, which has been used as a fluorescent • OH detector [ 34 ], were similar to those of DMSO. This result suggests that plasmid DNA breakage by UV irradiation in samples containing H 2 O 2 was caused by • OH.…”

Preparation of MgTi2O5 nanoparticles for sonophotocatalytic degradation of triphenylmethane dyes

“…7 c). Besides, the ultrasonic irradiation was also tested for the production of reactive radicals using terephthalic acid probe molecule ( • OH radical generation) [56] . In this case, the PL results indicate that • OH radicals were generated during ultrasonic irradiation using MgTi 2 O 5 nanoparticles (relatively one-half of photocatalytic illumination) ( Fig.…”

A correlation between cavitation bubble temperature, sonoluminescence and interfacial chemistry – A minireview

“…The cavitation efficiency as a function of various experimental parameters could be evaluated using several methodologies. For example, for chemical applications, the amount of radicals generated by cavitation could be quantified [18] , [19] , [20] . Sonoluminescence, sonochemiluminescence, acoustic emission and acoustic pressure distribution could also be measured to quantify cavitation efficiency [21] , [22] , [23] , [24] .…”