Abstract: An antimicrobial and chemical deactivating composition for use in a liquid medium or for incorporation into a coating, structural plastic materials, thin microporous membranes, textiles and sponges. The composition includes macrosize or submicron particles of silver, platinum with silver and their salts with parabens, oxide, salicylate, acetate, citrate, benzoate and phosphate along with copper and zinc salts of the same.

Abstract: An antimicrobial and chemical deactivating composition for use in a liquid medium or for incorporation into a coating, structural plastic materials, thin microporous membranes, textiles and sponges. The composition includes macrosize or submicron particles of silver, platinum with silver and their salts with parabens, oxide, salicylate, acetate, citrate, benzoate and phosphate along with copper and zinc salts of the same.

Abstract: An antimicrobial and chemical deactivating composition for use in a liquid medium or for incorporation into a coating, structural plastic materials, thin microporous membranes, textiles and sponges. The composition includes macrosize or submicron particles of silver, platinum with silver and their salts with parabens, oxide, salicylate, acetate, citrate, benzoate and phosphate along with copper and zinc salts of the same.

Abstract: An accessory is connected between a leg bag and a urinary catheter to prevent microorganisms migrating from the leg bag up through the catheter. The accessory has a sleeve, connectors to connect the sleeve to the leg bag and to the urinary catheter, a filter positioned within the sleeve that can be coated with an antimicrobial composition, and a valve to prevent fluid from moving from the leg bag to the catheter. The antimicrobial coated sleeve can be used with or with out the filter. The filter is made by compounding a polymeric resin powder with an antimicrobial composition.

Abstract: A process is described for the removal of mercury present at levels of 1-5000 ppb in waste water discharged from clinical research laboratories, industries and hospitals. The process involves preoxidation of the influent waste water with very small amounts of hypochlorite (16-100 ppm levels)or hydrogen peroxide, in a pretreatment tank. The waste water is then serially filtered through two pre filters and four carbon columns at a flow rate of 5 bedvolumes/hr. The preoxidation, prefiltration, organic removal, heavy metals removal (second column) and polishing stages (third and fourth) are important to achieve very low levels of mercury in the effluent. The last three columns contain activated coconut shell carbon impregnated with mercaptothiazoline . The three columns of the mercaptothiazoline impregnated carbon remove mercury and other heavy metals successively and reduce their levels in the influent to very low levels that is well below the enforced limit of 1 ppb.

Abstract: This invention encompasses porous, nanocrystalline, biomimetic calcium phosphate coatings of the order of 2-30 microns that can be grown on metal implants. The chemical surface treatments and methods for making the calcium phosphate coatings are disclosed. Post treatment with dilute hydrogels such as phema reinforce the inorganic structure and enhance the mechanical strength of the coatings. Methods are also disclosed for adsorbing or covalently attaching growth factor proteins to derivatives of the hydrogel coated calcium phosphate coatings. Such hydrogel reinforced calcium phosphate coatings show equivalent bone tissue growth as the currently used implants and are easily resorbed. This property in combination with the immobilized growth factors is expected to enhance the process of osseointegration of the disclosed coatings.

Abstract: Disclosed are coatings and materials that resist bacterial colonization and encrustation for use in medical devices and urological applications. The coating includes acidic chelating components, reactively bound to a hydrophilic polyurethane prepolymer along with noble metal combinations or antibacterials. The acidic and noble metal combinations can also be incorporated as additives during plastic molding of medical devices. A continuous antibacterial surfaces are provided by such coatings and materials.

Abstract: Disclosed is an encrustation and bacterial-resistant coating for use on medical devices and in other medical-related applications. The coating includes a reaction product formed by the covalent linkage of a hydrophilic polyurethane prepolymer and aminopolycarboxylic acid. A urease inhibitor and/or an antibacterial agent may also be added to the coating.