Abstract: Methods and materials for determining the affinity of separation materials for targeted species are described. A composite separation medium is described that combines a separation material such as an ion exchange material or a sorbent with an SERS substrate. Methods and materials can be utilized to determine the distribution coefficient of a species for a separation material after running a single separation protocol followed by examination of the separation material of the protocol according to SERS. Disclosed methods can be utilized to determine the affinity of existing separation materials for targeted species as well as to determine the affinity of newly engineered separation materials to characterize species.

Abstract: Methods and materials for determining the affinity of separation materials for targeted species are described. A composite separation medium is described that combines a separation material such as an ion exchange material or a sorbent with an SERS substrate. Methods and materials can be utilized to determine the distribution coefficient of a species for a separation material after running a single separation protocol followed by examination of the separation material of the protocol according to SERS. Disclosed methods can be utilized to determine the affinity of existing separation materials for targeted species as well as to determine the affinity of newly engineered separation materials to characterize species.

Abstract: Methods directed to the synthesis and peroxide-modification of nanosized monosodium titanate are described. Methods include combination of reactants at a low concentration to a solution including a nonionic surfactant. The nanosized monosodium titanate can exhibit high selectivity for sorbing various metallic ions.

Abstract: Methods directed to the synthesis of metal nanoparticles are described. A formation process can be carried out at ambient temperature and pressure and includes the deposition of metal ions on a titanate carrier according to a chemical deposition process followed by exposure of the metal ions to a reducing agent. Upon the exposure, nanoparticles of the reduced metal are formed that are adhered to the titanate carrier.

Abstract: A process for delivering and/or removing metal from a biological system by loading a titanate sorbent with a biometal either before introduction into the system for delivery to a site within the system or after introduction into the system for delivery to a site where there is an excess accumulation of metal and thereafter the sorbent is loaded at the site with the excess metal and is removed from the system.

Abstract: Methods directed to the synthesis and peroxide-modification of nanosized monosodium titanate are described. Methods include combination of reactants at a low concentration to a solution including a nonionic surfactant. The nanosized monosodium titanate can exhibit high selectivity for sorbing various metallic ions.

Abstract: Compositions containing metal ions bound into a titanate are described which have demonstrated an ability to suppress bacterial growth of a number of organisms associated with periodontal disease and caries.

Abstract: Compositions containing metal ions bound into a titanate are described which have demonstrated an ability to suppress bacterial growth of a number of organisms associated with periodontal disease and caries.

Abstract: The sorption capabilities (e.g., kinetics, selectivity, capacity) of the baseline monosodium titanate (MST) sorbent material currently being used to sequester Sr-90 and alpha-emitting radioisotopes at the Savannah River Site are significantly improved when treated with hydrogen peroxide; either during the original synthesis of MST, or, as a post-treatment step after the MST has been synthesized. It is expected that these peroxide-modified MST sorbent materials will have significantly improved sorption capabilities for non-radioactive cations found in industrial processes and waste streams.

Abstract: A process for delivering and/or removing metal from a biological system by loading a titanate sorbent with a biometal either before introduction into the system for delivery to a site within the system or after introduction into the system for delivery to a site where there is an excess accumulation of metal and thereafter the sorbent is loaded at the site with the excess metal and is removed from the system.

Abstract: A method for removing metal ions from a liquid having a wide range of pH levels by treating the liquid with a titanate sorbent, preferably monosodium titanate or amorphous peroxotitanate. In one embodiment, wastewater contaminated with mercury or cadmium may be purified.

Abstract: A method for measuring the concentration of hydroxides in alkaline solutions in a remote location using the tendency of hydroxides to absorb carbon dioxide. The method includes the passing of carbon dioxide over the surface of an alkaline solution in a remote tank before and after measurements of the carbon dioxide solution. A comparison of the measurements yields the absorption fraction from which the hydroxide concentration can be calculated using a correlation of hydroxide or pH to absorption fraction.