such as possible nitrite anaerobic methane oxidation by oxygenic bacteria, primordial chlorate metabolism by microbial chlorate dismutation, catalase-like enzymes converting radioactivity produced peroxides, or via nitric oxide dismutation on volcanic nitric oxide in the presence of abundant oceanic iron to ...
Although a number of peroxides have been used to achieve those properties, level of peroxide and its decomposition temperature, percentage of active oxygen, and half-life time of peroxide are the main governing matter. Exploring a Novel Cyclic Monofunctional Peroxide for Curing of Silicone Rubber at...
It occurs in most compounds in the -II oxidation state, and in the -I state in peroxides. With other elements, it forms numerous oxide complexes. Volatile oxides include OsOand CO. Oxygen compounds of great importance in analysis are hydrogen peroxide and the peroxide complexes of a number...
Compounds of the representative metals with oxygen fall into three categories: (1)oxides, containing oxide ions, O2-; (2)peroxides, containing peroxides ions,O22−,O22−,with oxygen-oxygen covalent single bonds and a very limited number ofsuperoxides, co...
Singlet oxygen-mediated protein oxidation: evidence for the formation of reactive peroxidesSinglet oxygen (molecular oxygen in its 1g state, 1O2) can be readily generated in a number of in vitro systems, and is suspected to be a major causative agent in some diseases. 1O2 has been shown to...
ROS are oxygen-containing molecules with high reactivity and include hydrogen peroxide, superoxide anion, lipid peroxides, hydroxyl radical and protein peroxides, as well as, peroxides generated in nucleic acids [15]. Viral infection can promote ROS production, which disrupts redox homeostasis and elici...
In peroxides (species containing the ion O22−) it is assumed that each oxygen has a charge of −1. This property of accepting electrons by complete or partial transfer defines an oxidizing agent. When such an agent reacts with an electron-donating substance, its own oxidation state is ...
Keywords: angiogenesis;biopolymer;hyaluronic acid;hypoxia;tissue regeneration;tissue engineering;oxygen;peroxides;periodontitis
These surface oxygen species have similar O 1 s binding energies as the surface peroxides (26), although they are thermodynamically much more stable than the surface peroxide species predicted from previous DFT calculations of Li and co-workers (20). Further DFT calculations (Fig. 5A) ...
In a published case control study on 94 subjects aged > 60 years (50 healthy and 44 with osteoporosis), where total antioxidant status, plasma lipid peroxides, SOD, and glutathione peroxidase (GPx) activities were measured, oxidative stress appeared as an independent risk factor for osteoporosis...