抄録
Although p-dimethylaminoazobenzene (methyl yellow, MY) is almost insoluble in water, it was captured on the surface of hydroxyapatite (HAP) after two different procedures in an aqueous phase: (A) by mixing MY with HAP pretreated with an aqueous solution of sodium dodecyl sulfate (SDS), and (B) by adding HAP into an aqueous solution of SDS where MY was solubilized into the micelle in advance of the mixing with HAP. The mechanism of capturing was explained in terms of the surface solubilization of MY into the adsorption layer of SDS on HAP. In other words, it was by virtue of formation of the mixed adsorption layer of SDS with MY on the surface of HAP through the hydrophobic interaction.
