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3D design leads to first stable and strong self-assembling 1D nanographene wires

 E-Mail IMAGE: Schematic illustration of hierarchical structures of carbon nanofiber bundles made of bitten warped nanographene molecules. view more  Credit: NINS/IMS Nanographene is flexible, yet stronger than steel. With unique physical and electronic properties, the material consists of carbon molecules only one atom thick arranged in a honeycomb shape. Still early in technological development, current fabrication methods require the addition of substituents to obtain a uniform material. Additive-free methods result in flimsy, breakable fibers until now. An international team of researchers has developed self-assembling, stable and strong nanographene wires. The results were published on March 24 in Journal of the American Chemical Society.

Residents lose coastal vistas to fortress-like tsunami walls : The Asahi Shimbun

A resident walks by a new seawall erected in the Ogatsu district of Ishinomaki, Miyagi Prefecture, after the Great East Japan Earthquake and tsunami. (Asahi Shimbun file photo) ISHINOMAKI, Miyagi Prefecture Rising almost three stories high and snaking 3 kilometers along the coastline, a seawall fortress guarding the Ogatsu district here today restricts views of the sea. The seawall is so massive and overwhelming that standing next to it blocks all sense of the ocean on the other side. But instead of offering peace of mind to residents, Yorio Takahashi, 53, said the protective structure dealt a death blow to his beloved seaside community. 

Wider horizons for highly ordered nanohole arrays

 E-Mail IMAGE: Scanning electron microscopy images of newly fabricated highly ordered nanohole arrays in tungsten, iron, cobalt and niobium oxide layers. view more  Credit: Tokyo Metropolitan University Tokyo, Japan - Scientists from Tokyo Metropolitan University have developed a new method for making ordered arrays of nanoholes in metallic oxide thin films using a range of transition metals. The team used a template to pre-pattern metallic surfaces with an ordered array of dimples before applying electrochemistry to selectively grow an oxide layer with holes. The process makes a wider selection of ordered transition metal nanohole arrays available for new catalysis, filtration, and sensing applications.

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