Instrumentation in Pulse Radiolysis

Janata, E.

doi:10.1142/9789814282093_0004

Cited by 2 publications

(1 citation statement)

References 40 publications

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“…OH radicals can cause oxidative damage to the nucleobases and single/double strand breaks of DNA via diffusion processes in living tissue. The intermediate products are stabilized during the chemical stage at a microsecond timescale and have been extensively studied by a variety of detection techniques [49], including high-performance liquid chromatography (HPLC) [50], time-resolved ultraviolet-visible absorption spectroscopy [51], electron paramagnetic resonance [52], and time-resolved resonance Raman spectroscopy [53]. For ionic products, electrical conductivity at nanosecond resolutions is measured and converted to product yields [54,55].…”

Section: Overview Of the Physical And Chemical Processes In Ion Tracksmentioning

confidence: 99%

Mass spectrometric study of fast heavy-ion induced products on microdroplet surfaces

Kitajima,

Majima,

Tsuchida

2024

J. Phys. B: At. Mol. Opt. Phys.

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Fast heavy-ion collisions with molecules that constitute a liquid are fundamental to the field of radiation chemistry and its application to biology. However, although collision-induced physical and chemical processes in liquids have been extensively studied, the initial stages of such processes remain not fully understood because of their complex behaviors. Accordingly, our group has studied the initial reactions occurring in the vicinity of fast ion trajectories in liquids by mass spectrometric analysis of the secondary ions ejected from microdroplet surfaces upon fast heavy-ion impacts. In this topical review, we present our recent experimental advances in secondary-ion mass spectrometry using microdroplets of water, alcohols, and amino acid solutions. Our findings demonstrate the complex physicochemical behaviors of positive and negative product ions and highlight the role of secondary electrons in the mechanisms of biomolecular damage triggered by fast heavy ions.

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Section: Overview Of the Physical And Chemical Processes In Ion Tracksmentioning

confidence: 99%

Mass spectrometric study of fast heavy-ion induced products on microdroplet surfaces

Kitajima,

Majima,

Tsuchida

2024

J. Phys. B: At. Mol. Opt. Phys.

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Radiation‐Induced Radical Reactions

Bobrowski

2012

Encyclopedia of Radicals in Chemistry, Biology and Materials

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This article reports on radiation‐induced radical reactions in gases, liquids, and solids. A brief summary of specific features of high‐energy radiation and its interaction with matter is given as a base for better understanding of reaction mechanisms initiated by radiation. The first section describes the most important features of radiolysis in a gas phase with presentation of the commonly used gas systems for inducing and studying radical reactions. Relevant examples include radical reactions connected with atmospheric and environmental chemistry, combustion, and electric discharges. The second section focuses on radiation‐induced radical reactions in water and aqueous solutions with a special emphasis on procedures that allow induction of radical reactions in a controlled manner. Relevant examples include radical reactions initiated by primary and secondary radicals from water radiolysis with a variety of compounds. Application of various organic solvents and ionic liquids offering a convenient method of generation and also some control over the nature of radical ions and excited states formed in the irradiated solvents and derived from the solutes is also presented. The last section briefly summarizes the most commonly applied solid systems and highlights radiation‐induced radical reactions in zeolites, a new matrix used recently for radiation generation of radicals and radical ions in the solid state.

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Instrumentation in Pulse Radiolysis

Cited by 2 publications

References 40 publications

Mass spectrometric study of fast heavy-ion induced products on microdroplet surfaces

Mass spectrometric study of fast heavy-ion induced products on microdroplet surfaces

Radiation‐Induced Radical Reactions

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