| 词汇 | example_english_singlet-oxygen |
| 释义 | singlet oxygencollocation in Englishmeanings of singletand oxygenThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with oxygen. singlet noun[C] uk /ˈsɪŋ.ɡlət/ us /ˈsɪŋ.ɡlət/ mainly UK a piece of clothing without sleeves that is worn on the top part of the body under clothes, or for playing ... See more at singlet oxygen noun[U] uk /ˈɒk.sɪ.dʒən/ us /ˈɑːk.sɪ.dʒən/ a chemical element that is a gas with no smell or colour. Oxygen forms a large part of the air on earth, and is needed by animals and plants ... See more at oxygen Examples of singlet oxygenThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Photosensitizatized oxidation and singletoxygen: consequences in biological systems. As a singletoxygen quencher and an inhibitor of lipid peroxidation, this selenoaminoacid acts as a cell protectant, and prevents ethylene generation by lipid peroxidation/free radical formation. Second, the energy level of this triplet state must also be below that of singletoxygen, so that it in turn cannot sensitize the production of singletoxygen itself. Singletoxygen is responsible for the rapid deterioration of materials, particularly those with conjugated unsaturation such as natural rubber and synthetic elastomers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Such intermediates arise from the addition of singletoxygen to the double bond. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Singletoxygen is usually generated with a photosensitizer pigment. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The reaction is followed by a photochemical process creating singletoxygen to obtain the end product. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Ingestion of pigments capable of producing singletoxygen with activation by light can produce severe photosensitivity of skin (see phototoxicity, photosensitivity in humans, photodermatitis, phytophotodermatitis). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. To initiate combustion, energy is required to force dioxygen into a spin-paired state, or singletoxygen. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Both low-spin iron and singletoxygen are diamagnetic. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some are termed antioxidants because of their ability to trap singletoxygen. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Parts of the immune system of higher organisms, however, create peroxide, superoxide, and singletoxygen to destroy invading microbes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The free radical decarboxylated derivative of the drug is the toxic agent which, in the presence of oxygen, yields singletoxygen and superoxy anion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Curcuminoids act as a superoxide radical scavenger as well as singletoxygen quencher and gives the antioxidant its effectiveness. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The oxidation of hydrogen peroxide by sodium hypochlorite yields singletoxygen. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The iron chemistry in this previous classical model was elegant, but the required presence of the required diamagnetic high-energy singletoxygen was never explained. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Because of its unusual properties, singletoxygen can persist for over an hour at room temperature, in isolation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Reactive oxygen species, especially singletoxygen, have a role in the acceptor-side, singletoxygen and low-light mechanisms. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nucleophilic decomposition of dioxiranes to singletoxygen is a unique problem associated with dioxirane heteroatom oxidations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In nature, singletoxygen is commonly formed from water during photosynthesis, using the energy of sunlight. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of singlet Go to the definition of oxygen See other collocations with oxygen |
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