The effect of the inclusion of aminobenzoic acid derivatives (ABAD) in a self-etching primer comprising 4-acryloxyethyltrimellitic acid (4-AET), HEMA and water on shear bond strength to ground dentin was investigated. The mean bond strengths to dentin were significantly increased by the inclusion of 0.307mol% ABAD in the 4-AET/HEMA primer, when compared with the control (0wt% ABAD) (p<0.01). A particularly high value (38.0 MPa) of shear bond strength was obtained in the use of the primer containing pnitroanthranilic acid (p-NAA). It seemed to assume that the effect of p-NAA could be caused by the strong electron-withdrawing group of-NO2. From SEM observation, it was found that bonding resin appeared to adhere strongly to the ground dentin without formation of any resin-tags in the dentinal tubules. It was thought that the ABAD with 4-AET/HEMA could perform facilitating photo-polymerization at the bonding interface, and resulted in increased bond strength to ground dentin, and that the bond strength could be affected by the electronegativities of substitutional groups of ABAD.

Well-defined one-dimensional arrays of gold nanoparticles dispersed in triphenylphosphine nanowires were obtained by annealing of chloro(triphenylphosphine) gold(I) complexes in a porous alumina template. The obtained nanocomposite wires exhibit strong surface plasmon coupling due to the close proximity of adjacent gold nanoparticles.

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In situ formation of Cu–Ni alloy nanoparticles with controlled composition in thin polyimide layers was investigated.

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