Abstract: A method for extracting a metal species from a solution is described, where the metal species comprises a rare earth element, Th, or U. The method involves the use of poly(caffeic acid) as a sorbent material. The poly(caffeic acid) may be crosslinked with a diamine crosslinker such as ethylenediamine.

Abstract: Materials and methods for extracting metals from solutions, involving a polymer of Formula A are described: where each X is independently either S or O, and n is an integer greater than 1.

Abstract: Materials and methods for extracting metals from solutions, involving a polymer of Formula A are described: where each X is independently either S or O, and n is an integer greater than 1.

Abstract: A method for the preparation of layered electrodes, including ultramicroelectrodes, through application of a thin film coating of an inorganic material to a conductor by use of chemical vapor deposition. The chemical vapor deposition techniques of the present invention provide a layered electrode that is efficiently and effectively manufactured in a standard reaction chamber at atmospheric pressure. The preferred conductors are carbon fibers and foams, and metal (platinum or gold) wires, meshes and foams. The precursors for the thin film deposition include those that yield thin-films of insulators, semiconductors, metals, and superconductors. During the chemical vapor deposition process, a thin film coating is formed on the conductor by the pyrolytic decomposition of the precursor vapor at the surface of the heated conductor. The hardness and rigidity of the thin film layer imparts durability and structure to the fragile and flexible conductors without significantly increasing the size of the device.