Tokyo University of Science

About: Tokyo University of Science is a education organization based out in Tokyo, Japan. It is known for research contribution in the topics: Catalysis & Thin film. The organization has 15800 authors who have published 24147 publications receiving 438081 citations. The organization is also known as: Tōkyō Rika Daigaku & Science University of Tokyo.

Nanoporous Carbon Tubes from Fullerene Crystals as the π‐Electron Carbon Source

Abstract: Here we report the thermal conversion of one-dimensional (1D) fullerene (C-60) single-crystal nanorods and nanotubes to nanoporous carbon materials with retention of the initial 1D morphology The 1D C-60 crystals are heated directly at very high temperature (up to 2000 degrees C) in vacuum, yielding a new family of nanoporous carbons having pi-electron conjugation within the sp(2)-carbon robust frameworks These new nanoporous carbon materials show excellent electrochemical capacitance and superior sensing properties for aromatic compounds compared to commercial activated carbons

An approach to the photocatalytic mechanism in the TiO2-nanomaterials microorganism interface for the control of infectious processes.

Abstract: The approach of this timely review considers the current literature that is focused on the interface nanostructure/cell-wall microorganism to understand the annihilation mechanism. Morphological studies use optical and electronic microscopes to determine the physical damage on the cell-wall and the possible cell lysis that confirms the viability and microorganism death. The key parameters of the tailoring the surface of the photoactive nanostructures such as the metal functionalization with bacteriostatic properties, hydrophilicity, textural porosity, morphology and the formation of heterojunction systems, can achieve the effective eradication of the microorganisms under natural conditions, ranging from practical to applications in environment, agriculture, and so on. However, to our knowledge, a comprehensive review of the microorganism/nanomaterial interface approach has rarely been conducted. The final remarks point the ideal photocatalytic way for the effective prevention/eradication of microorganisms, considering the resistance that the microorganism could develop without the appropriate regulatory aspects for human and ecosystem safety.

Uplink non-orthogonal access with MMSE-SIC in the presence of inter-cell interference

Abstract: This paper investigates the system-level throughput performance of non-orthogonal access with minimum mean squared error-based linear filtering followed by a successive interference canceller (MMSE-SIC) in the cellular uplink. Although non-orthogonal access employing the MMSE-SIC achieves the entire region of the multiuser capacity in a multiple access channel (MAC), which should be beneficial in enhancing the total user throughput and cell-edge user throughput simultaneously compared to orthogonal access, the multiplexing of multiple users within the same frequency block increases the inter-cell interference in the context of the cellular uplink. The aim of the transmission power control method investigated in this paper is to mitigate the inter-cell interference increase due to non-orthogonal user multiplexing. We employ a weighted proportional fair (PF)-based multiuser scheduling scheme to achieve a good tradeoff between the total user throughput and cell-edge user throughput. Simulation results show that non-orthogonal access employing the MMSE-SIC using the proposed transmission power control significantly enhances the system-level throughput performance compared to orthogonal access, which is widely used in 3.9 and 4G mobile communication systems.

Highly Ordered 1D Fullerene Crystals for Concurrent Control of Macroscopic Cellular Orientation and Differentiation toward Large‐Scale Tissue Engineering

Abstract: A highly aligned 1D fullerene whisker (FW) scaffold in a centimeter area is fabricated by interfacial alignment. The resulting aligned FW scaffold enables concurrent control over cellular orientation and differentiation to muscle cells. This aligned FW scaffold is made by a facile method, and hence the substrate is a promising alternative to other cell scaffolds for tissue engineering.