Radicals Radio

Elango, N., Samuel, S., Chinnakkannii, P. (2006). Enzymatic and non-enzymatic antioxidant sta-ms in stage (III) human oral squamous cell carcinoma and treated with radical radio therapy influence of selenium supplementation. Clin. Chim. Acta 373(1-2), 92-98. 

An interesting set of central nervous system properties has also been discovered and studied (Table VI-10). The work devoted to piscaine must be emphasized besides finding hypnotic properties of 2-amino-4-phenyl-thiazole on fish, the authors studied the structure of the metabolite, as well as the localization of the (radio labeled) metabolic product in various organs. Recently, thiazol-4-yl methoxyamine was shown to inhibit the development of morphine tolerance (1607). 5-Aminothiazole derivatives such as 419a were proposed as cardiovascular agents (1608, 1610). Substitution of the 5-aminothiazole radical on the cephalophosphorin structure gives a series of antibacterial products (1609). 

Microwave or radio frequencies above 1 MHz that are appHed to a gas under low pressure produce high energy electrons, which can interact with organic substrates in the vapor and soHd state to produce a wide variety of reactive intermediate species cations, anions, excited states, radicals, and ion radicals. These intermediates can combine or react with other substrates to form cross-linked polymer surfaces and cross-linked coatings or films (22,23,29). 

At 70—140°C, peroxide is vaporised. Peroxide vapor has been reported to rapidly inactivate pathogenic bacteria, yeast, and bacterial spores in very low concentrations (133). Experiments using peroxide vapor for space decontamination of rooms and biologic safety cabinets hold promise (134). The use of peroxide vapor and a plasma generated by radio frequency energy releasing free radicals, ions, excited atoms, and excited molecules in a sterilising chamber has been patented (135). 

Tetrakis(tnfluoromethyljnn can be prepared via metal vapor [9] or fluonnation techniques [fO] and via reaction with tnfluoromethyl radicals generated by radio-frequency discharge of CF3CF3 [JJ] (equation 7)... 

An exchange reaction between bis(trifluorometbyl)mercury and tetrame-thylleud gives trimethyl(mfluoromethyl)plumbane [23] (equation 17) This plum-bane can also be prepared via the reaction of tetramethyllead with tnfluoromethyl radicals produced in a radio-frequency discharge of C2F [24]... 

The reaction of trifluoromethyl radicals, generated in a radio-frequency discharge process, with elemental mercury f/7i], mercury halides [174], dime-thylmercuiy [24], or HgO [175] has been used for the preparation of CFjHgX and (CF3)2Hg. Direct fluorination of dimethylmercury with elemental fluorine gives (CF3)2Hg [176],... 

Radikalessig, m. radical vinegar (old name for acetic acid, esp. glacial acetic acid). Radio-aktivitat, /. radioactivity, -blei, n. radio-lead. -chemie, /. radiochemistry, -tellur, n. 

Ideally, it would be desirable to determine many parameters in order to characterize and mechanistically define these unusual reactions. This has been an important objective that has often been considered in the course of these studies. It would be helpful to know, as a function of such parameters of the plasma as the radio-frequency power, pressure, and rate of admission of reactants, (2) the identity and concentrations of all species, including trifluoromethyl radicals, (2) the electronic states of each species, (3) the vibrational states of each species, and (4) both the rotational states of each species and the average, translational energies of, at least, the trifluoromethyl radicals. 

A new synthesis for sigma-bonded, metal alkyls and similar compounds, involving a reaction between metal vapor and free radicals generated in a radio-frequency glow-discharge, has been reported (35). 

Palozza, P., Calviello, G. Serini S. et al. 2001a. Beta-carotene at high concentrations induces apoptosis by enhancing oxy-radical production in human adenocarcinoma cells. Free Radio Biol Med 30 1000-1007. 

Maser transitions have been observed in many important molecules and have been used to carry out surveys of the entire sky. The 22.235 GHz water maser transition is the strongest transition in the radio universe and represents an interesting candidate for an interstellar broadcast frequency. If extraterrestrial intelligence is trying to communicate with us, the choice of the broadcast frequency is an important one and would be known to all intelligent life. Of course it would have a different label, 22.235 GHz being a distinctly Earthly label, but it is a fundamental transition frequency and is observed everywhere. Other maser transitions include the 6.7 and 12.2 GHz methanol maser, the SiO maser v = 1, J = 7-6, 301.8 GHz, which occurs between levels in the first vibration state of the SiO molecule, and finally the OH maser first discovered in 1963 and buried deep in the 2n3/2 electronic state of the hydroxyl radical near 18 cm. This is actually four transitions at 1612, 1665, 1667 and 1720 MHz, all of which must be seen as a group but not necessarily of the same intensity. 

The synthesis of Sn(CF3)4 can be achieved by the reaction of Snk with the trifluoromethyl radical in a radio-frequency discharge315. 

The formation of l from 1 had been postulated by Vetter [8a]. From the above information we can make the following conclusions (a) l" (atom-free radical) can be produced electrochemically, (b) l" does react with pyridine and may react with similar compounds and (c) recombination of l" may be slow in solution phase. Molecular iodine (di-iodine) the radio-isotope, is being used in the treatment of thyroid disorder. One can ask the question is there any biologically beneficial or toxic effect of iodine atom. There has been no study [8b]. 

Qian, S. Y., Wang, H. P., Schafer, F. Q., and Buettner, G. R., 2000, FPR detection ofhpid-derived free radicals from PUFA, LDL, and cell oxidations. Free Radio. Biol. Med 29 568-579. 

Photolytic. The vacuum UV photolysis (X = 147 nm) and y radio lysis of ethylenimine resulted in the formation of acetylene, methane, ethane, ethylene, hydrogen cyanide, methyl radicals, and hydrogen (Scala and Salomon, 1976). Photolysis of ethylenimine vapor at krypton and xenon lines yielded ethylene, ethane, methane, acetylene, propane, butane, hydrogen, ammonia, and ethylene-imino radicals (Iwasaki et al, 1973). 

L. A. Booth, I. T. Gilmore and R. F. Bilton, Secondary bile-acid induced DNA damage in HT29 cells are free radicals involved Free Radio. Res., 1997, 26(2), 135. 

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