Significance of Stable free radical
Stable free radical, particularly DPPH, is a relatively unreactive molecule with an unpaired electron, widely used in antioxidant activity assessments. DPPH accepts electrons or hydrogen radicals to become stable and remains unchanged during testing. It serves as a standard in assays, estimating the antioxidant activity of various substances. Its stability makes it ideal for methods like the Blois method and research published in Nature, providing a reliable means to assess antioxidant levels.
Synonyms: Stable radical
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The concept of Stable free radical in scientific sources
Stable free radicals, like DPPH, are relatively unreactive radicals used in antioxidant assays. DPPH readily accepts electrons or hydrogen radicals, becoming a stable molecule, and is commonly used to assess antioxidant levels.
From: International Journal of Pharmacology
(1) DPPH is a this that gives deep violet color in methanol solution illustrated by an absorption band centered at 517 nm.[1] (2) This is used in antioxidant determinations.[2] (3) A radical that remains unchanged, used in the Blois method for determining antioxidant activity.[3]
From: Asian Journal of Pharmaceutics
(1) DPPH is this and accepts an electron or hydrogen radical to become a stable diamagnetic molecule.[4] (2) Antioxidants react with DPPH, which is this type of radical.[5] (3) It refers to free radicals that are relatively stable and used in antioxidant assays.[6]
From: International Journal of Pharmacology
(1) Antioxidant determinations can be performed using a stable free radical, as described by Blois in 1958.[7] (2) DPPH is recognized as a stable and commercially available organic nitrogen radical used in antioxidant activity assessments.[8] (3) A molecule with an unpaired electron that is relatively unreactive, such as DPPH, used in assays to test antioxidant activity.[9]
From: International Journal of Environmental Research and Public Health (MDPI)
(1) These are found in cigarette smoke, along with reactive oxygen species and gaseous free radical species, and can interact with one another and with biopolymers in the smoker’s lungs.[10] (2) Stable Free Radicals are studied in relation to tobacco smoke, with research elucidating their role in tobacco-smoke-induced toxicity and carcinogenicity as highlighted in the International Journal of Environmental Research and Public Health.[11]