New oscillation reactions and pattern formation in dioxygen systems

Yatsimirskii, K. B.; Zakrevskaya, L. N.; Strizhak, P. E.; Rybak‐Akimova, Elena V.

doi:10.1016/0009-2614(91)80184-y

Cited by 14 publications

(5 citation statements)

References 9 publications

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“…It should be noted that also oscillatory behavior has been observed under certain experimental conditions both in time, with a time constant of many minutes, 35 or in space via pattern formation. 36,37 It was further described that MB can also be reduced by a photoinduced electron transfer from appropriate electron donors. 38 We therefore tested the photoinduced response of MB to the presence of MEA.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Methylene Blue- and Thiol-Based Oxygen Depletion for Super-Resolution Imaging

et al. 2013

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Anaerobic conditions are often required in solution-based bionanotechnological applications. Efficient oxygen depletion is essential for increasing photostability, optimizing fluorescence signals, and adjusting kinetics of fluorescence intermittency in single-molecule fluorescence spectroscopy/microscopy, particularly for super-resolution imaging techniques. We characterized methylene blue (MB)- and thiol-based redox reactions with the aim of designing an oxygen scavenger system as an alternative to the established enzyme-based oxygen scavenging systems or purging procedures. Redox reactions of the chromophore methylene blue in aqueous solution, commonly visualized in the blue bottle experiment, deplete molecular oxygen as long as a sacrificial reduction component is present in excess concentrations. We demonstrate that methylene blue in combination with reducing compounds such as β-mercaptoethylamine (MEA) can serve as fast and efficient oxygen scavenger. Efficient oxygen scavenging in aqueous solution is also possible with mere β-mercaptoethylamine at mM concentrations. We present kinetic parameters of the relevant reactions, pH-stability of the MB/MEA-oxygen scavenging system, and its application in single-molecule based super-resolution imaging.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Methylene Blue- and Thiol-Based Oxygen Depletion for Super-Resolution Imaging

et al. 2013

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“…To realize the synthesis of the CuS fractal films we investigated a possibility of the formation of fractal CuS film during pattern formation in so-called 'oxygen' systems, that is during oscillating chemical reaction of substrate oxidation by air oxygen in the presence of metal ion coordination compound [27]. The variety of oxygen systems, which is defined by variety of substrates and different copper(lI) coordination compounds, gives a possibility to establish the experimental conditions for a fractal film creation.…”

Section: Resultsmentioning

confidence: 99%

New Approach to Synthesis of Fractal Materials with a given Fractal Dimension. Synthesis and Some Properties of Amorphous Fractal Films of Copper Sulfide

Strizhak

1995

Ber Bunsenges Phys Chem

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A method of synthesis of fractal films of copper sulfide is proposed. Formation of fractal films is induced by spatial patterns formed in so-called 'oxygen' oscillating chemical reaction -oxidation of ascorbic acid by air oxygen in the presence of hydrogen sulfide ions, methylene blue, and copper(II) coordination compound. The formation of the CuS film in this system is observed due to the slow reaction between copper(II) coordination compound and the hydrogen sulfide ions. A fractal dimension of CuS films correlates with the fractal dimension of chemical patterns. The electrical resistance of the fractal films and the sensitivity of Cu 2 + -selective electrodes with the fractal CuS surface to Cu 2 + ions were measured. These results are interpreted in terms of fractal dimension.

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“…This method for determination of redox potentials has been used previously in the study of chemical transformations of the reduced nicotinamide adenine dinucleotide (NADH), ascorbic acid and other compounds. 137 It should be noted that the redox method does not possess sensitivity with respect to any of the compounds involved in the reaction. Nevertheless, it yields a function of state of the reaction system, which is directly related to the reactant concentrations.…”

Section: Fractal Properties Of Lignin Biosynthesismentioning

confidence: 99%