Takashi Nakanishi 교수

Self-organisation is an elegant tool for the creation of assemblies controlled in all dimensions with tunable properties in natural as well as artificial supramolecular systems. Especially, the supramolecular organisation of fullerene (C(60)) using π-stacking interaction to form various functional assemblies is of particular importance as it can provide excellent optoelectronic properties. Interestingly, the insufficient solubility of C(60) has been overcome through the noncovalent interaction w

Illuminating! Isolation of a π-core by covalently attached flexible hydrocarbon chains has been employed to synthesize blue-emitting oligo(p-phenylenevinylene) (OPV) liquids with tunable viscosity and optical properties. A solvent-free, stable, white-light emitting ink/paint, which can be applied onto various surfaces and even onto LEDs, was made by blending of liquid OPVs with emissive solid dopants.

Nanocarbon superhydrophobic surfaces (NCSSs) with a fractal morphology of the two-tier roughness on a nano- and microscopic scale are created from hierarchical, supramolecular objects, which are readily prepared by molecular assembly of a fullerene derivative bearing long aliphatic chains. The high durability of the fabricated fractal structures is derived from enhanced π–π and van der Waals interactions of fullerene and aliphatic chain moieties, respectively. Supporting information for this art

Self-assembly of a fullerene derivative with long alkyl chains in different solvents results in the formation of hierarchically-ordered supramolecular assemblies with well-defined 1, 2 and 3D architectures such as vesicles, fibers, discs and cones, whose fundamental structural sub-unit consists of bilayers.

Dimensionally controlled and hierarchically assembled supramolecular architectures in nano/micro/bulk length scales are formed by self-organization of alkyl-conjugated fullerenes. The simple molecular design of covalently attaching hydrophobic long alkyl chains to fullerene (C(60)) is different from the conventional (hydrophobic-hydrophilic) amphiphilic molecular designs. The two different units of the alkyl-conjugated C(60) are incompatible but both are soluble in organic solvents. The van der

Hierarchical supramolecular assemblies of micrometer-sized flower-shaped objects (see image) are constructed by transformation of an interdigitated bilayer precursor composed of a fullerene derivative bearing three long aliphatic chains. Intermediate transforming structures provide evidence for the formation mechanism of the flower-shaped objects. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2296/2007/z700647_s.pdf or from the author.

The water flea Daphnia magna has been used as an animal model in ecology, evolution, and environmental sciences. Thanks to the recent progress in Daphnia genomics, genetic information such as the draft genome sequence and expressed sequence tags (ESTs) is now available. To investigate the relationship between phenotypes and the available genetic information about Daphnia, some gene manipulation methods have been developed. However, a technique to induce targeted mutagenesis into Daphnia genome r

Fullerene derivatives bearing long alkyl chains epitaxially adsorb on the basal plane of graphite forming well-ordered one-dimensional lamellae. Within the lamellae, the C60 moieties are organized in a zigzag-type fashion. The ordering is mainly governed by the substitution pattern and chain length of the alkyl chains. The electrochemical activity of the C60 groups is fully maintained in the surface-confined assemblies.

Fullerene flakes: A diacetylene-functionalized fullerene derivative self-organizes into flakelike microparticles (see picture). Both the diacetylene and C(60) moieties can be effectively cross-linked, which leads to supramolecular materials with remarkable resistivity to solvent, heat, and mechanical stress. Moreover, the surface of the cross-linked flakelike objects is highly durable and water-repellent.

Fullerenes, C60, modified with long alkyl chains form long-range ordered lamellar mesophases permitting a high C60 content. The mesomorphic fullerenes feature reversible electrochemistry and a comparably high electron carrier mobility making them attractive components for fullerene-based soft materials.

Characteristics of cyclooxygenase-2 (COX-2) expressing cells in human dental pulp were immunohistologically studied. Extirpated pulpal tissues from extracted teeth were examined to elucidate the localization and distribution of COX-2. Pulpal tissues were examined by the labeled streptavidin biotin method using specific mouse monoclonal antibodies for COX-2. Cell types of the COX-2 expressing cells were also investigated by the double stain technique using both monoclonal antibodies for CD68/macr

The chemistry of functional molecular liquids (FMLs) is a recently developed research area that describes the unique properties of the liquid physical state of the materials under solvent-free conditions. FMLs are generally composed of uncharged molecular units and exist in free-flowing as well as amorphous states in nature under ambient conditions. Attachment of flexible and bulky alkyl chains to a π-conjugated chromophore is the most common method for producing such molecular liquids. FMLs exh

Formation of hierarchically self-organized architectures in organic media and their non-wetting surface features of a series of fullerene-C60 derivatives bearing different numbers of long hydrocarbon chains (1–3) and semiperfluoro-alkyl tails (4) are investigated by means of a variety of techniques, including X-ray diffraction, differential scanning calorimetry, as well as spectroscopic and microscopic methods. All derivatives self-assemble into a bilayer arrangement with their fundamental struc

Fullerene (C₆₀), a π-conjugated cage molecule consisting of 60 sp²-hybridized carbon atoms that are arranged into perfect icosahedral symmetry, is one of the most extensively studied nanocarbon materials by virtue of its characteristic spherical structure, fascinating optoelectronic properties, and widespread applications in material science. To implement practical applications, C₆₀ is generally used as a building motif to assemble into various ordered superstruc

The realisation of technologically high potential molecular materials as an innovative replacement for currently used materials requires sensible molecular design and subtle implementation. One such research concept "liquid chemistry" has recently been introduced as a third-generation of liquid materials after the first and second generations of solvent liquids and ionic liquids, respectively. The outstanding features of novel organic molecular liquid matter are solvent-free neat phase at room-t