Syntheses of Metal Nanoparticles Having the Ability of Molecular Recognition and Improvements of Functions by Ternary Complex Formation

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Nanoparticles stabilized by organic molecules are now creating a new class of materials different from either conventional bulk materials or atoms, giving one of the smallest building blocks of matter. Metal nanoparticles have various properties based on high surface area and quantum size effects. Stabilizers play important roles for not only protecting nanoparticles but also controlling catalytic properties. Here we focus on the syntheses of metal nanoparticles having the ability of molecular recognition andimprovements of functions by ternary complex formation. The application of this metal nanoparticles is(1) antioxidants which reduce active oxygen species in a living body, and(2) liquid crystal displays.