• electrons
  • The high potential (+320 mV) haem feeds electrons from electron shuttle proteins to the low potential (-330 mV) haem, where peroxide is reduced (indeed, the low potential site is known as the peroxidatic site). (wikipedia.org)
  • A new strategy was developed to enhance the peroxidase mimicking activity of gold nanoparticles by using hot electrons. (wikipedia.org)
  • The two hydrogens have been transferred to the carrier or the other product, with their electrons. (wikipedia.org)
  • free radicals
  • Disturbances in the normal redox state of cells can cause toxic effects through the production of peroxides and free radicals that damage all components of the cell, including proteins, lipids, and DNA. (wikipedia.org)
  • Such species include free radicals and peroxides. (wikipedia.org)
  • Glutathione is capable of preventing damage to important cellular components caused by reactive oxygen species such as free radicals, peroxides, lipid peroxides, and heavy metals. (wikipedia.org)
  • oxygen
  • and various peroxides (ROOR') and hydroperoxides (ROOH) ( Reactive oxygen species-Table 18.1 ), as well as for their fluorometric detection in solution. (thermofisher.com)
  • In the laboratory, singlet oxygen is usually generated in one of three ways: photochemically from dioxygen ( 3 O 2 ) using a photosensitizing dye ( Figure 18.2.1 ), chemically by thermal decomposition of a peroxide or dioxetane, or by microwave discharge through an oxygen stream. (thermofisher.com)
  • The oxidizing capacity of hydrogen peroxide is so strong that it is considered a highly reactive oxygen species. (ecmdb.ca)
  • The organic compounds (proteins, lipids and carbohydrates) contain the majority of the carbon and nitrogen and most of the oxygen and hydrogen is present as water. (wikipedia.org)
  • Some metalloproteins are designed to protect a biological system from the potentially harmful effects of oxygen and other reactive oxygen-containing molecules such as hydrogen peroxide. (wikipedia.org)
  • The toxicity of peroxides is thought to be caused by the formation of reactive oxygen species (ROS) which are involved in lipid peroxidation further oxidative cellular damage. (wikipedia.org)
  • Safrole contains several reactive groups: Ethers tend to form unstable peroxides when exposed to oxygen which can sometimes be observed as clear crystals. (wikipedia.org)
  • Acetals, ketals, hemiacetals and hemiketals react similarly to ethers, although members of this group would be less likely to form explosively unstable peroxides when exposed to oxygen. (wikipedia.org)
  • reactions
  • Gold nanoparticles' peroxidase mimicking activities were modulated via a supramolecular strategy for cascade reactions. (wikipedia.org)
  • Dehydrogenase reactions come most commonly in two forms: the transfer of a hydride and release of a proton (often with water as a second reactant), and the transfer of two hydrogens. (wikipedia.org)
  • compounds
  • 1989. Polymerization of substituted anilines, phenols, and heterocyclic compounds by peroxidase in organic solvents. (wikipedia.org)
  • Many of these compounds undergo autoxidation upon exposure to the air to form explosive peroxides, which is generally a slow process. (wikipedia.org)
  • unlike
  • This property is the reason an economical synthesis is sought for BTP.This chemical is unusual in the fact that unlike many peroxides, bis(trifluoromethyl)peroxide is a gas, is nonexplosive and has good thermal stability. (wikipedia.org)
  • activity
  • In 2012, recombinant human heavy-chain ferritin coated iron oxide nanoparticle with peroxidase-like activity was prepared and used for targeting and visualizing tumour tissues. (wikipedia.org)
  • A molecular imprinting strategy was developed to improve the selectivity of Fe3O4 nanozymes with peroxidase-like activity. (wikipedia.org)
  • Recent in vitro investigations into the ability of the DUOX1 domain to act as a peroxidase demonstrated that cell lysate from peroxidase expression in C. elegans and E. coli had tyrosine cross-linking activity. (wikipedia.org)
  • radicals
  • Consistent with damage of large ducts, we detected cytochrome P -4502E1 (which CCl 4 converts to its radicals) only in large cholangiocytes. (physiology.org)