منابع مشابه
Investigation of the production of free radicals in ultraviolet irradiation using SnO2:Eu nanoparticles
In studying the ultraviolet (UV) radiation, one of the important factors is the possibility of generating a variety of free radicals inside the body by these radiations. In this paper, a method of estimating the amount of hydroxyl radicals produced by ultraviolet rays was investigated using nanoparticles of tin oxide doped with uropium. In this method, the change in absorption intensity of meth...
متن کاملTheories of biological aging: genes, proteins, and free radicals.
Traditional categorization of theories of aging into programmed and stochastic ones is outdated and obsolete. Biological aging is considered to occur mainly during the period of survival beyond the natural or essential lifespan (ELS) in Darwinian terms. Organisms survive to achieve ELS by virtue of genetically determined longevity assuring maintenance and repair systems (MRS). Aging at the mole...
متن کاملperformance of biological system and advanced oxidation processes (aop) treating antibiotic production industrial wastewater
در این مطالعه، عملکرد دو سیستم اکسیداسیون شیمیایی پیشرفته و یک سیستم بیولوژیکی برای حذف آموکسی سیلین در فاضلاب های سنتزیدر غلظت های مشابه با موارد صنعتی مورد بررسی قرار گرفته شدند. مطالعه انجام شده دارای سه بخش متفاوت اکسیداسیون با ازن و اشعه uv، اکسیداسیون با استفاده از نانو فتوکاتالیست tio2 و استفاده از بیوراکتور هوازی لجن فعال با جداکننده های فیزیکی می باشد. در هر بخش، متغیر های متفاوتی متنا...
15 صفحه اولProduction of Free Radicals from Adamantane by High Energy Irradiation
The nature and properties of radicals produced by the action of electron and ^-radiation on adamantane have been investigated. Radicals produced by irradiation at 77 °K are stable to around room temperature, while irradiation at the latter temperature yields well resolved spectra of species stable to about 130 °C. The significance of the latter, assigned as the 1-adamantyl radical, in the forma...
متن کاملUv-induced Oxygen Free Radicals Production in Spinach Thylakoids
Besides being the ultimate driving force for photosynthesis and its important regulatory factor, solar light is also a major source of stress to photosynthetic organisms. The efficiency of the light induced damage increases with the wavelength decrease. Thus, from natural sunlight that reaches the Earth, the UV-A and UV-B (290–320 nm and 320 – 400 nm, respectively) spectral ranges have the high...
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ژورنال
عنوان ژورنال: Japanese Journal of Pharmacology
سال: 1988
ISSN: 0021-5198
DOI: 10.1016/s0021-5198(19)56954-2