Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Kojiro Uetani"'
Publikováno v:
BioResources, Vol 16, Iss 2, Pp 4438-4473 (2021)
Native cellulose is mainly found in phytomass, such as trees and other plants. It has a regular hierarchical nanoarchitecture, in which the extended macromolecular chains are aligned and closely packed in parallel to form the crystalline nanofibrils
Externí odkaz:
https://doaj.org/article/03a2f88b108e457b88ba73cce420a080
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract The elastic responsiveness of single cellulose nanofibres is important for advanced analysis of biological tissues and their use in sophisticated functional materials. However, the mechanical responsiveness derived from the twisted structure
Externí odkaz:
https://doaj.org/article/7842ce3d368445a0a4efdc0d9f592a3a
Autor:
Kojiro Uetani, Takuya Kitaoka
Publikováno v:
BioResources, Vol 16, Iss 1, Pp 1-4 (2020)
Nanocellulose is a collective term for nanoassemblies of macromolecular cellulose in fibrous and crystalline forms, mainly originating from woody bioresources. Fascinating physicochemical properties of nanocellulose, such as high strength, light weig
Externí odkaz:
https://doaj.org/article/b07e81c84ab1480a86cd83583839ec8a
Autor:
Kojiro Uetani, Takuya Uto
Publikováno v:
Carbohydrate Polymer Technologies and Applications, Vol 2, Iss , Pp 100166- (2021)
We report the angle dependence of the photoelasticity for unidirectionally aligned films of bacterial cellulose nanofibers (CNFs) by applying the off-axis stress at 0°–90° with respect to the CNF orientation. The photoelastic coefficient was posi
Externí odkaz:
https://doaj.org/article/91c6093a9083440dac9e08a451d7f265
Publikováno v:
Nanomaterials, Vol 11, Iss 12, p 3249 (2021)
Biomass-derived three-dimensional (3D) porous nanocarbons have attracted much attention due to their high surface area, permeability, electrical conductivity, and renewability, which are beneficial for various electronic applications, including energ
Externí odkaz:
https://doaj.org/article/959bdc4498224b0992ddcf01f1d1f19e
Autor:
Kojiro Uetani, Kimihito Hatori
Publikováno v:
Science and Technology of Advanced Materials, Vol 18, Iss 1, Pp 877-892 (2017)
In this review, we summarize the recent progress in thermal conductivity analysis of nanocellulose materials called cellulose nanopapers, and compare them with polymeric materials, including neat polymers, composites, and traditional paper. It is imp
Externí odkaz:
https://doaj.org/article/2c25180fe1be4000af41de7602439d86
Thermal Conductivity Analysis of Chitin and Deacetylated-Chitin Nanofiber Films under Dry Conditions
Publikováno v:
Nanomaterials, Vol 11, Iss 3, p 658 (2021)
Chitin, a natural polysaccharide polymer, forms highly crystalline nanofibers and is expected to have sophisticated engineering applications. In particular, for development of next-generation heat-transfer and heat-insulating materials, analysis of t
Externí odkaz:
https://doaj.org/article/36ad5a290b114ed9876d99ec5f3ea9f9
Autor:
Shota Tsuneyasu, Rikuya Watanabe, Naoki Takeda, Kojiro Uetani, Shogo Izakura, Keitaro Kasuya, Kosuke Takahashi, Toshifumi Satoh
Publikováno v:
Nanomaterials, Vol 11, Iss 3, p 697 (2021)
Powder electroluminescent (EL) devices with an electric field type excitation are surface light sources that are expected to have a wide range of practical applications, owing to their high environmental resistance; however, their low luminance has h
Externí odkaz:
https://doaj.org/article/732123419cd149829d283dab27f22302
Publikováno v:
Nanomaterials, Vol 10, Iss 11, p 2194 (2020)
As a renewable nanomaterial, transparent nanopaper is one of the promising materials for electronic devices. Although conventional evaporation drying method endows nanopaper with superior optical properties, the long fabrication time limits its widel
Externí odkaz:
https://doaj.org/article/764701ab47bb497d97ce9b09919020df
Publikováno v:
Nanomaterials, Vol 10, Iss 5, p 958 (2020)
It is essential to build multiaxis oriented nanocellulose films in the plane for developing thermal or optical management films. However, using conventional orientation techniques, it is difficult to align nanocelluloses in multiple directions within
Externí odkaz:
https://doaj.org/article/723a4978f6374390aeda731515f91e79