SPEEK OR SPEAK FREE

An immobilized bilirubin oxidase reactor model, which shows good agreement with experimental bilirubin conversions, is presented. The rate of total bilirubin degradation in bilirubin-serum albumin mixtures is zero order. From the theoretical analysis and the measured unbound bilirubin concentrations, serum albumin may be modelled as a molecule having two binding sites, primary and secondary, with stoichiometric equilibrium constants of K1 = 6 × 107M−1 and K2 = 4.5 × 106M−1, respectively. A stoichiometric bilirubin-serum albumin binding analysis shows that the unbound bilirubin concentration depends only on the molar ratio of the total bilirubin concentration to the total serum albumin. The unbound bilirubin concentration and the enzymatic rate of bilirubin degradation by bilirubin oxidase in bilirubin-serum albumin solutions have been investigated experimentally and theoretically.

(informal, transitive, sometimes, humorous) To understand (as though it were a language). 1851, ( Herman Melville ), (Moby-Dick) : There he sat, his very indifference speaking a nature in which there lurked no civilized hypocrisies and bland deceits. The differences in hydrophilicity and conformation of SPEEK compared to Nafion account for a more severe effect on enzyme efficiency. To communicate (some fact or feeling) to bespeak, to indicate. A pluridisciplinary approach associating microscopy, UV-Vis spectroscopy, dynamic light scattering, SDS gels and electrochemistry allows to point out a molecular interaction between the polymer particles and the enzyme governed by different principles depending SPEEK or Nafion is considered. We show that both SPEEK and Nafion ionomers reduce the catalytic activity of Mv BOD in enzymatic assays in solution as well as in electrochemical experiments once the enzyme is co-adsorbed with the ionomer.

concentration on enzymatic oxygen reduction by the Myrothecium verrucaria bilirubin oxidase (Mv BOD). Here, we investigate the effect of ionomer type and.

SPEEK OR SPEAK FREE

In the search for an alternative to this costly and non-ecofriendly material, sulfonated poly(ether ether ketone) SPEEK, another ionomer free of perfluorinated functions can be envisioned. Ionomers such as Nafion are used combined to redox enzymes in bioelectrocatalysis in order to prevent enzyme leakage and to enhance proton diffusion.

Speek or speak