東京工業大学 · Materials Science
타카노리 후쿠시마 교수의 연구실은 탄소 나노튜브와 이온 액체의 상호작용을 핵심으로 하여, 고도로 전도성이고 기계적 강도가 뛰어난 유연한 나노소재를 개발하고 있습니다. 특히 이온 액체가 탄소 나노튜브를 비공유 결합 방식으로 정렬시키고, 이를 통해 전도성 젤, 나노튜브 기반 액추에이터, 고성능 센서 및 에너지 저장 소자로 응용하는 데 중점을 두고 있습니다. 연구는 나노구조의 자가조립, 전자적 성질 제어, 그리고 전기화학적 응용을 아우르는 통합적 접근을 특징으로 합니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
When mixed with imidazolium ion-based room-temperature ionic liquid, pristine single-walled carbon nanotubes formed gels after being ground. The heavily entangled nanotube bundles were found to untangle within the gel to form much finer bundles. Phase transition and rheological properties suggest that the gels are formed by physical cross-linking of the nanotube bundles, mediated by local molecular ordering of the ionic liquids rather than by entanglement of the nanotubes. The gels were thermall
Controlled self-assembly of a trinitrofluorenone-appended gemini-shaped amphiphilic hexabenzocoronene selectively formed nanotubes or microfibers with different photochemical properties. In these nanotubes, which are 16 nanometers in diameter and several micrometers long, a molecular layer of electron-accepting trinitrofluorenone laminates an electron-donating graphitic layer of pi-stacked hexabenzocoronene. The coaxial nanotubular structure allows photochemical generation of spatially separated
Liquid films: Ionic liquids containing dispersed single-walled carbon nanotubes (bucky gels), allow the first layer-by-layer casting fabrication of a fully plastic actuator. This actuator adopts a simple three-layered configuration of soft electrodes and electrolyte layers (see picture) and can operate in air at low voltages. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z462318_s.pdf or from the author. Please note: The publi
A serendipitous finding that ionic liquids gel with carbon nanotubes has opened a new possibility of ionic liquids as modifiers for carbon nanotubes. Upon being ground into ionic liquids, carbon nanotube bundles are untangled, and the resultant fine bundles form a network structure. This is due to the possible specific interaction between the imidazolium ion component and the pi-electronic nanotube surface. The resultant gelatinous materials, consisting of highly electroconductive nanowires and
One-dimensionally connected organic nanostructures with dissimilar semiconducting properties are expected to provide a reliable platform in understanding the behaviors of photocarriers, which are important for the development of efficient photon-to-electrical energy conversion systems. Although bottom-up supramolecular approaches are considered promising for the realization of such nanoscale heterojunctions, the dynamic nature of molecular assembly is problematic. We report a semiconducting nano
Free-radical polymerization of an imidazolium ion-based ionic liquid bearing a methacrylate group, gelling with single-walled carbon nanotubes (SWNTs), allows fabrication of a mechanically reinforced, electroconductive soft material (bucky plastic). A film sample of this material displays an excellent conductivity of 1 S cm(-1) and a 120-fold enhancement of the Young's modulus at a 7 wt % content of SWNTs. The conductivity is temperature-dependent in the range 5-300 K, suggesting that the conduc
Abstract Thalamic projections from trigeminal and certain other nuclei of the brainstem of the rat have been investigated using the technique of retrograde transport of horseradish peroxidase (HRP). The pattern of trigeminothalamic projections is very specifically related to the individual subnuclei of the complex. The Main Sensory Nucleus (MSN) provides profuse crossed connections to the ventrobasal thalamus (VB); these arise exclusively from medium and small‐sized neurons, but never from the l
Despite a large steric bulk of C(60), a molecular graphene with a covalently linked C(60) pendant [hexabenzocoronene (HBC)-C(60); 1] self-assembles into a coaxial nanotube whose wall consists of a graphite-like pi-stacked HBC array, whereas the nanotube surface is fully covered by a molecular layer of clustering C(60). Because of this explicit coaxial configuration, the nanotube exhibits an ambipolar character in the field-effect transistor output [hole mobility (micro(h)) = 9.7 x 10(-7) cm(2) V
✓ The authors report a new ventriculofiberscope useful in both diagnosing and operating on lesions of the ventricular system. The technique and its advantages are illustrated in representative cases.
Abstract The results of endoscopic biopsy in 21 cases of intraventricular tumor are presented. The details of the equipment are given. Of the 21 tumors biopsied, there were 9 in the lateral ventricle, 2 in the thalamus, 6 in the anterior portion of the 3rd ventricle, and 4 in the pineal region. A correct histological diagnosis was made in 11 cases (52.4%). No serious complications were noted. The value of the procedure is discussed.
To assemble functional molecular units into a desired structure while controlling positional and orientational order is a key technology for the development of high-performance organic materials that exhibit electronic, optoelectronic, biological and even dynamic functions. For this purpose, we cannot rely simply on the inherent self-assembly properties of the target functional molecular units, since it is difficult to predict, based solely on the molecular structure, what structure will be achi
