Sökning: "autoxidation"
Visar resultat 1 - 5 av 16 avhandlingar innehållade ordet autoxidation.
1. Allergenic Oxidation Products from Fragrance Terpenes. Chemical Analysis and Determination of Sensitizing Potency
Sammanfattning : The ubiquitous presence of fragrance compounds in consumer products has resulted in a high frequency of contact allergy to fragrances in the population. For prevention purposes and according to EU regulations, cosmetics must be labeled when containing the most prominent fragrance allergens in concentrations exceeding 0. LÄS MER
2. Regenerable Organochalcogen Antioxidants : An Explorative Study
Sammanfattning : Antioxidants are widely used to protect organic materials from damages caused by autoxidation, an oxidation process that occurs under normal aerobic conditions. In this thesis, novel multifunctional organoselenium and organotellurium antioxidants were designed, synthesized, and evaluated in search for compounds with better radical-trapping capacity, regenerability, and hydroperoxide-decomposing ability. LÄS MER
3. Clinical and experimental studies on oxidized fragrance terpenes as contact allergens
Sammanfattning : The work presented in this thesis aims to improve the possibilities for diagnosing contact allergy to oxidized limonene and linalool and to, in patients, study contact allergy from structurally closely related hydroperoxides with regard to their specificity, potency and cross-reactivity. The fragrance terpenes limonene (from citrus oil) and linalool (from lavender oil) are widely used in household and industrial products. LÄS MER
4. Epoxides as Contact Allergens - Formation, Sensitising Potency and Structure-Activity Relationships
Sammanfattning : Chemicals in our environment with which we have repeated skin contact can cause skin sensitisation (contact allergy). To trigger an immune response a compound (hapten) must be able to penetrate the skin, where it needs to be reactive enough to bind to proteins and form immunogenic complexes that are recognised as foreign. LÄS MER
5. On the central kinetic role of C-nitroso compounds in the autoxidation process of N-hydroxyphenylalkylamines
Sammanfattning : .... LÄS MER