A set of three catecholamide ligands mimicking the structure of enterobactin was constructed on ferritin, where the 3-fold symmetric arrangement of the monomer subunits served as a foundation to form a coordination space. Similar to enterobactin, the ligands showed strong affinity for the ferric ion and formed a tris-catechoyl complex. Crystallography revealed that the complex was embedded in t...

Oxidation of pollutants in waste water by photo-Fenton reaction has proven an ecofriendly and economical method. Oxidation of amido black – 10B, (an acid dye of azo series) using photoFenton reagent was investigated under ambient conditions. The effect of different parameters like the concentration of ferric ion, amido black10B and hydrogen peroxide, pH, light intensity etc. on the reaction rat...

In the present study, methanol and aqueous extracts of Parkinsonia aculeata L. leaves were prepared and analyzed for phytochemical analysis and antioxidant potential in different in vitro assays. Antioxidant activity was studied using DPPH, CUPRAC, reducing power assay, deoxyribose degradation (site and nonsite specific), ferric reducing antioxidant potential (FRAP), ferric thiocyanate (FTC), t...

The blank-corrected determination in serum of total and conjugated bilirubin and of uric acid has been adapted to the centrifugal analyzer. Bilirubin is measured by a modified Jendrassik and Grof procedure; uric acid is determined kinetically by using a reaction based on reduction of ferric ion, including a uricase-treated blank. Sensitivity and precision of both methods are excellent, and resu...

By means of Optical Absorption, EPR and Mössbauer techniques it is demonstrated that the addit ion of small amounts of water to solutions of FeCl 3 in isopropanol enhances the concentration of [FeCl4]" complexes, this addition leading also to the formation of ferric dimers involving two Fe —OH" bridges. An explanation of this fact based on the disproport ionation of FeCl3 and water hydrolysis i...

An acid ferric reduction procedure is described for determining serum urate with 2,4,6-tripyridyl-s-triazine at 593 nm, whereby each mole of urate reduces 4 moles of ferric ion. The procedure requires no deproteinization and as little as 20 l of serum is needed. It gives results that are linearly related to concentration to about 30 mg/dl, and it is precise (CV, 2.6%), accurate, and sensitive (...

INJURY to the cornea with an iron-containing foreign body usually leaves a rust ring. Most surgeons advise complete removal of any rust, but this often causes considerable trauma to the already injured cornea. Desferrioxamine ("Desferal", Ciba Laboratories) is an iron-free compound isolated from a strain of Streptomycespilosus, which binds ferric ions to form an octahedral complex ferrioxamine....