Biomaterial Database

In vitro binding of iron with the cation-exchange resin sodium polystyrene sulfonate. 1996

T A O'Connor, and B A Gruner, and J C Gehrke, and S M Watling, and C W Gehrke

Department of Child Health, University of Missouri School of Medicine.

OBJECTIVE To investigate the ability of the cation exchange resin sodium polystyrene sulfonate to bind iron from ferrous sulfate solutions, along with the effects of pH on binding. METHODS We performed a series of in vitro experiments in which various concentrations of iron and sodium polystyrene sulfonate were combined and free ferrous iron was measured with the use of a colorimetric assay. RESULTS Sodium polystyrene sulfonate bound iron from ferrous sulfate solutions at pH 2 and pH 7. Slightly less binding of free ferrous iron was demonstrated in experiments performed at pH 7 than in those performed at pH 2. At pH 2, 98% of iron was bound, at pH 7, 95% of iron was bound. CONCLUSIONS Sodium polystyrene sulfonate may be a useful therapy in acute iron poisoning once safety and efficacy are determined with the use of in vivo models.

UI	MeSH Term	Description	Entries
D007501	Iron	A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN.	Iron-56,Iron 56
D011137	Polystyrenes	Polymerized forms of styrene used as a biocompatible material, especially in dentistry. They are thermoplastic and are used as insulators, for injection molding and casting, as sheets, plates, rods, rigid forms and beads.	Polystyrol,Polystyrene,Polystyrols
D012117	Resins, Synthetic	Polymers of high molecular weight which at some stage are capable of being molded and then harden to form useful components.	Dental Resins,Dental Resin,Resin, Dental,Resin, Synthetic,Resins, Dental,Synthetic Resin,Synthetic Resins
D002411	Cation Exchange Resins	High molecular weight insoluble polymers which contain functional anionic groups that are capable of undergoing exchange reactions with cations.	Cation Exchange Resin,Cation Exchangers (Resins),Exchange Resin, Cation,Exchange Resins, Cation,Resin, Cation Exchange,Resins, Cation Exchange
D005296	Ferrous Compounds	Inorganic or organic compounds that contain divalent iron.	Compounds, Ferrous
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D017382	Reactive Oxygen Species	Molecules or ions formed by the incomplete one-electron reduction of oxygen. These reactive oxygen intermediates include SINGLET OXYGEN; SUPEROXIDES; PEROXIDES; HYDROXYL RADICAL; and HYPOCHLOROUS ACID. They contribute to the microbicidal activity of PHAGOCYTES, regulation of SIGNAL TRANSDUCTION and GENE EXPRESSION, and the oxidative damage to NUCLEIC ACIDS; PROTEINS; and LIPIDS.	Active Oxygen Species,Oxygen Radical,Oxygen Radicals,Pro-Oxidant,Reactive Oxygen Intermediates,Active Oxygen,Oxygen Species, Reactive,Pro-Oxidants,Oxygen, Active,Pro Oxidant,Pro Oxidants,Radical, Oxygen
D066298	In Vitro Techniques	Methods to study reactions or processes taking place in an artificial environment outside the living organism.	In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In