Thus cytochrome P450 monooxygenases (P450s), which represent the most versatile group of oxygen-transferring biocatalysts, need NAD(P H as electron donating co-substrate and - at least - one accessory protein, a flavin reductase, as electron-transferring partner enzyme (Smith et al. 1994).
ROS are a group of oxygen-based molecules characterized by their high chemical reactivity [ 12, 13].
Reactive oxygen species (ROS) (Gupte and Mumper, 2009) are a group of oxygen-containing chemical species normally generated from mitochondrial respiratory chain reaction with reactive chemical properties.
Xanthones are a group of oxygen-containing heterocyclic compounds with remarkable pharmacological effects such as anti-cancer, antioxidant, anti-inflammatory, and antimicrobial activities.
They needed to first convert graphene to graphene oxide, adding groups of oxygen and hydrogen molecules, but this process negates its electrical properties.
The surface functional groups of oxygen were determined according to Boehm titration (Meldrum and Rochester 1990a; Boehm 1994; Bandosz et al. 1992).
X-ray photoelectron results have confirmed the presence of functional groups of oxygen and nitrogen in the samples which facilitates the pseudocapacitance.
The experimental data of this work, the data of previous work with the same pilot plant and thermodynamic data allow the identification of three groups of oxygen carriers according to the demands on the reactor system for good fuel conversion.
The presence of surface functional groups of oxygen like phenol, carbonyl, hydroxyl, and lactones were determined according to Boehm titration, and from Table 1, it was clear that for activated carbon, the total basic groups were greater than the total acidic groups.
Considering the non-significant difference in genetic expression of aggrecan mRNA transcript between inner and outer MFC cultured under 21% or 3% O2, the results of our GAG/DNA assay demonstrating equivalent production of matrix-associated proteoglycan between groups of oxygen tension are not surprising.
