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The nanoscience explores the materials which are about 10-9 times smaller in size. It is the quantum mechanics (or mechanics) that governs the NANO world. A material treated in the nanoscience consists of an infinite or homogeneous system and finite or heterogeneous systems: for example, a protein (finite) in water (infinite) and a molecular wire (finite) connected to metal surface (infinite). It will be essential to combine the "heterogeneous" methodologies in number of different ways to create new theories or computational methods to investigate "heterogeneous" materials in the NANO world. We have been developing a new computational environment which is called GRID. A newly developed method or computer program in a particular research node will be integrated into the collaborative research to be shared in "real time" by the group members scattered among the heterogeneous GRID nodes. One of our concerns in the computational nanoscience is self-organization processes in solution such as micelle (or vesicle) formation and protein folding, in which "solvent" plays a crucial role.