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Sterilization radicals, generation

Contribution of Reactive Neutral Species to Sterilization Effect of Non-Thermal Plasma. Compare contribution to sterilization of OH-radicals generated in plasma and then transported to the surface of biomaterials (see section 12.5) with that of OH-radicals produced inside of the biomaterials from plasma-generated charged particles (see section 12.1.4). Analyze rates of OH-production by surface bombardment with electrons and with positive and negative ions. What is the effect of electric field in the non-thermal atmospheric-pressure air discharges on the balance between the channels of OH production ... [Pg.912]

Eletromagnetic radiations of different wavelengths, i.e., UV-visible light and x-ray, are known to induce degradation in proteins [147]. Radiation, which is commonly employed for sterilization purpose, can generate free radicals and lead to peptide... [Pg.392]

The superoxide dismutation can be spontaneous or can be catalyzed and therefore significantly accelerated by the enzyme superoxide dismutase (SOD). The superoxide not only generates lydrogen peroxide (H2O2) but also stimulates its conversion into OH radicals, which are actually extremely strong oxidizers very effective in sterilization through a chain oxidation mechanism (to be especially discussed in Section 12.1.5). The H2O2 conversion into OH, known as the Fenton reaction, proceeds as a redox process provided by oxidation of metal ions (for example, Fe +) ... [Pg.853]

UHMWPE has gained its importance in orthopedic science and technology for more than 5 decades as a material of choice for total hip- and knee-joint components. However, the physical and chemical properties of UHMWPE are adversely affected by free radicals that are generated in the polymer matrix as a result of radiation sterilization or crosslinking [3-13]. Consequently, the... [Pg.433]

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See also in sourсe #XX -- [ Pg.186 ]



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