§16§Unique view on producing metal nano 3D superlattices by differing their morphologies, crystalline structures, chemical, and physical properties.§ §04§SYNTHESES OF METAL NANOCRYSTALS§Nanocrystal Growth Processes and Control of Size and Distribution§Crystalline Structure of Metal Nanocrystals§Various Techniques Used to Produce Metal Nanocrystals and Control their Sizes and Distribution§Influence of the Coating Agents on the Size Control§N-Heterocyclic Carbene Ligands for Au Nanocrystals Stabilization§Conclusion§ §INFLUENCE OF THE NANOPARTICLE CRYSTALLINE STRUCTURES CALLED NANOCRYSTALLINITIES ON VARIOUS PROPERTIES §Nano-Kinkerdall §Local Surface Plasmon Resonance, LSPR §Acoustic Vibrational Modes §3D Superlattice Growth Processes §Mechanical Properties §Conclusions § §AU 3D SUPERLATTICES PRODUCED BY SOLVENT EVAPORATION PROCESS §3D Superlattice Morphology of Au Nanocrystal Coated with Thiol Derivatives§Interparticle Distance of Nanocrystals in 3D Superlattices §Au 3D Superlattices Coated with N-Heterocyclic Carbene §Conclusions § §3D SUPERLATTICE GROWTH A THERMODYNAM §04§IC EQUILIBRIUM§Homogeneous and Heterogeneous 3D Superlattice Growth Processes §Submillimeter Size Single 3D Superlattices of 5nm Au Nanocrystals§Conclusions § §AG 3D SUPERLATTICES§Control of the Crystalline Structure of Ag 3D Superlattices §Optical Properties §Stability §Conclusions § §MESOSTRUCTURE OF MAGNETIC NANOCRYSTALS §Magnetic Nanocrystals Dispersed in Solution: Ferrofluids §Mesostructures of Maghemite Nanocrystals §Mesostructures of Cobalt Nanocrystals§Conclusions§ §BINARY 3D SUPERLATTICES§Structure of 3D Superlattices Predicted by the Hard Sphere Model§Limitation of the Hard Sphere Models§Solvent-Mediated Crystallization of Nanocrystal 3D Assemblies of Silver Nanocrystals: Unexpected Superlattice Ripening §Collective Properties Involved in Self-Assemblies of Binary Systems§Conclusions § §ANALOGY BETWEEN 3D SUPERLATTICES AND ATOMIC CRYSTALS: CRYSTALLINE STRUCTURE§Atomic Crystals, Shaped 3D Superlatt §04§ices and Minerals§Negative 3D Superlattices §Vicinal Surfaces§Quasi 3D Superlattices§Conclusions § §ANALOGY BETWEEN 3D SUPERLATTICES AND ATOMIC CRYSTALS: PHYSICAL PROPERTIES§Magnetic Properties §Longitudinal Acoustic Phonons §Breathing Modes§Conclusions § §3D SUPERLATTICE STABILITY §Influence of Temperature §Edging Process §Solvent-Mediated Crystallization of Nanocrystal 3D Assemblies §Conclusions§ §INTRINSIC PROPERTIES RELATED DUE TO THE SELF-ASSEMBLIES OF NANOCRYSTALS§Epitaxial Crystal Growth as a Result of the Manocrystal Ordering§Unexpected Electronic Properties of Micrometer-Thick 3D Superlattices of Au Nanocrystals §Collective Magnetic Properties of Co Nanocrystals Self-Assembled in 3D Superlattices§Super-Spin Glass Behavior of FCC 3D Superlattices. §Alignment of Magnetic Nanocrystals§Co 3D Superlattice Collective Properties of Amorphous Nanoparticles §Conclusion§ §MECHANICAL PROPERTIES OF 3D S §04§UPERLATTICES§Measurements of Mechanical Properties using Atomic Force Microscope, AFM§3D Superlattices Produced under Thermodynamic Processes§3D Superlattices Produced through Heteregeneous 3D Superlattice Growth Process §Do the Apparent Discrepancies of the Young Moduli Produced with a Large Variety of Metallic Nanocrystals Self-Assembled in fcc Structures Remain Valid or not? §Mesoscopic Assemblies of Co Nanocrystals Differing by their Size Distribution: Mechanical Intrinsic Properties. §Conclusions§ §CRACKS IN NANOCRYSTAL FILM§Cracks of Nanocrystal Films§Cracks in Nature §Conclusions § §WATER DISPERSIVE HYDROPHOBIC SUPRASTRUCTURES: SPECIFIC PROPERTIES §Au and Co "Clustered" Structures. §Colloidosomes and Supraballs§Nanoheaters §Conclusion § §NANOCRYSTAL SELF-ASSEMBLY IN CELLS §Ferrite Colloidosomes and Supraballs §Intracellular Fate of Hydrophobic Nanocrystal Self-Assemblies in Tumor Cell