2,614 research outputs found
N-(2,5-Dimethoxyphenyl)-N′-(4-hydroxyphenethyl)urea
In the title compound, C17H20N2O4, the 2,5-dimethoxyphenyl unit is almost planar, with an r.m.s. deviation of 0.015 Å. The dihedral angle between the 2,5-dimethoxyphenyl ring and the urea plane is 20.95 (8)°. The H atoms of the urea NH groups are positioned syn to each other. The molecular structure is stabilized by a short intramolecular N—H⋯O hydrogen bond. In the crystal, intermolecular N—H⋯O and O—H⋯O hydrogen bonds link the molecules into a three-dimensional network
1-[3-(Hydroxymethyl)phenyl]-3-phenylurea
In the title compound, C14H14N2O2, the dihedral angle between the benzene rings is 23.6 (1)°. The H atoms of the urea NH groups are positioned syn to each other. In the crystal, intermolecular N—H⋯O and O—H⋯O hydrogen bonds link the molecules into a three-dimensional network
Optimal Synthesis of Horizontally Aligned Single-Walled Carbon Nanotubes and Their Biofunctionalization for Biosensing Applications
As an influential candidate for highly sensitive biomolecule sensor, which can capture disease related biomolecules, carbon nanotube is useful material due to its unique properties. To adopt as a sensing platform, it is strongly needed to find optimal refined synthetic condition. In order to find the optimal synthetic conditions of horizontally aligned CNT, we performed quantity control of themixed gases of H-2 and CH4 injected. We successfully find that the formation of amorphous-like carbon was critically affected by some gas condition such as the flow rate of injected gases and ratios of gas mixture. Moreover, it should be noted that our horizontally aligned carbon nanotube array platform developed would offer another potential in developing nanoscale light source, where light emission results from electron-hole carrier recombinationope
Direct observation of CD4 T cell morphologies and their cross-sectional traction force derivation on quartz nanopillar substrates using focused ion beam technique
Direct observations of the primary mouse CD4 T cell morphologies, e.g., cell adhesion and cell spreading by culturing CD4 T cells in a short period of incubation (e.g., 20 min) on streptavidin-functionalized quartz nanopillar arrays (QNPA) using a high-content scanning electron microscopy method were reported. Furthermore, we first demonstrated cross-sectional cell traction force distribution of surface-bound CD4 T cells on QNPA substrates by culturing the cells on top of the QNPA and further analysis in deflection of underlying QNPA via focused ion beam-assisted technique
TRAO Survey of Nearby Filamentary Molecular clouds, the Universal Nursery of Stars (TRAO FUNS) I. Dynamics and Chemistry of L1478 in the California Molecular Cloud
"TRAO FUNS" is a project to survey Gould Belt's clouds in molecular lines.
This paper presents its first results on the central region of the California
molecular cloud, L1478. We performed On-The-Fly mapping observations using the
Taedeok Radio Astronomy Observatory (TRAO) 14m single dish telescope equipped
with a 16 multi-beam array covering 1.0 square degree area of this region
using CO (1-0) mainly tracing low density cloud and about 460 square
arcminute area using NH (1-0) mainly tracing dense cores. CS (2-1)
and SO were also used simultaneously to map 440 square
arcminute area of this region. We identified 10 filaments by applying the
dendrogram technique to the CO data-cube and 8 dense NH
cores by using {\sc FellWalker}. Basic physical properties of filaments such as
mass, length, width, velocity field, and velocity dispersion are derived. It is
found that L1478 consists of several filaments with slightly different
velocities. Especially the filaments which are supercritical are found to
contain dense cores detected in NH. Comparison of non-thermal
velocity dispersions derived from CO and NH for the
filaments and dense cores indicates that some of dense cores share similar
kinematics with those of the surrounding filaments while several dense cores
have different kinematics with those of their filaments. This suggests that the
formation mechanism of dense cores and filaments can be different in individual
filaments depending on their morphologies and environments.Comment: 25 pages, 15 figures, accepted for publication in Ap
3,4-Dihydroxyphenyl 3,4,5-trimethoxybenzoate
In the title compound, C16H16O7, the dihedral angle between the two benzene rings is 82.02 (7)°. The crystal structure is stabilized by intermolecular O—H⋯O hydrogen bonds, which link the molecules into a two-dimensional network
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