Both dioxygen and the superoxide anion are free radicals that exhibit paramagnetism. The derivatives of dioxygen have characteristic O–O distances that correlate with the order of the O–O bond.

2016年2月15日 · Superoxide ion (O 2 •–) is of great significance as a radical species implicated in diverse chemical and biological systems. However, the chemistry knowledge of O 2 •– is rather scarce. In addition, numerous studies on O 2 •– were …

The superoxide anion is a primary oxygen radical that is formed when an oxygen molecule acquires an electron. The initial formation of O 2•− triggers a cascade of ROS, some of which, such as H 2 O 2, behave as key molecules in cell signalling, and others, such as …

2020年3月30日 · Two species, hydrogen peroxide (H 2 O 2) and the superoxide anion radical (O 2·−), are key redox signalling agents generated under the control of growth factors and cytokines by more than 40...

The production of superoxide anion radical (O2• (-)) is essential for the life of aerobic organisms. This free radical acts as a signaling molecule, regulating numerous biological processes including apoptosis, aging, and senescence.

Study of the biology of the superoxide anion radical and of related free radicals, and the defenses thereto, has now reached this happy state of maturity.

2022年1月1日 · Superoxide anion radical has the properties of oxidation or nucleophilic, and the nucleophilicity makes it possible to combine with the prober to realize fluorescence imaging, so as to detect superoxide anion radical.

The superoxide anion radical created from molecular oxygen by the addition of an electron is, in spite of being a free radical, not highly reactive. It lacks the ability to penetrate lipid membranes and is, therefore, enclosed in the compartment where it was produced.

2023年2月6日 · The highly reactive superoxide radicals forms when dioxides interact with air, a process that can be achieved in all living organisms and can then be further purposed depending on its context and the process through which it is metabolized.

2023年1月17日 · The superoxide anion is a primary oxygen radical that is formed when an oxygen molecule acquires an electron. The initial formation of O 2•− triggers a cascade of ROS, some of which, such as H 2 O 2, behave as key molecules in cell signalling, and others, such as HO, are damaging.