| Budget Amount *help |
¥59,800,000 (Direct Cost: ¥46,000,000、Indirect Cost: ¥13,800,000)
Fiscal Year 2012: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2011: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2010: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2009: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
Fiscal Year 2008: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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| Research Abstract |
The term “self-assembly” encompasses two features - one is static self-assembly which occurs near at the thermal equilibrium, and the other is dynamic (or dissipative) self-assembly that emerge at far from thermodynamic equilibrium. Until now, emergence of nano-scale dissipative structures has not been reported. In this study, we have shown that nano-scale dissipative structures are self-assembled from Au(OH)_4- and tetra-alkyl ammonium ions at the aqueous/organic interface. We define dissipative nano-structures as steady-state populations of ordered molecular assemblies that are maintained only under nonequilibrium conditions, i.e, by continuously supplying energy to the system. As such structures dissipate at thermal equilibrium, it was necessary to convert them to stable nanostructures so that they become observable by electron microscopy. In this study, the dissipative nanostructures of Au(OH)_4-/tetra-alkyl ammonium ion pairs self-assembled at the liquid-liquid interface under far-from-equilibrium conditions was photo-reduced to gold nanowires which contain regularly positioned nanocavities. It was produced by photochemical reduction of. Linear dissipative nanostructures emerged in conjunction with the continuous vectorial transport of tetra-alkyl ammonium ions across the interface.
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