Abstract
Hydrophilic plasma-polymer films were prepared from 2- propyn-1-ol (propargyl alcohol, PA) on surfaces of solid materials. The polymer enhanced its wettability by increasing the amount of water added to the PA monomer. Functional property of the polymer was first evaluated by coating of the plasma-polymerized PA (PPPA) film on a silica gel thinlayer plate. Chromatographic behaviors of some organic compounds was significantly altered by interaction between the polymer and the organic samples. Impregnation of chondroitin sulfate in the silica gel and following immobilization with the plasma-polymer exhibited affinities for Co2+, Fe2+, and Cu2+ depending upon the amount of chondroitin sulfate immobilized. PPPA showed humidity-electroconductive property that was usable as a sensing device of a hygrometer. An immobilized glucose oxidase (GOD) membrane was prepared by impregnating GOD in a porous membrane and coated with PPPA film. The membrane was attached to a dissolved oxygen electrode for composing a glucose sensor and the sensor worked with linear response up to the glucose concentration of 2mM.
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