Octupolar Plasmonic Nanosensor Based on Ordered Arrays of Triangular Au Nanopillars for Selective Rotavirus Detection

2020 ◽  
Vol 3 (5) ◽  
pp. 4837-4844 ◽  
Author(s):  
M. Rippa ◽  
R. Castagna ◽  
S. Brandi ◽  
G. Fusco ◽  
M. Monini ◽  
...  
Keyword(s):  
Ordered Arrays ◽  
Plasmonic Nanosensor

RNA polymerase: Preparation and structural analysis of helical polymers

1984 ◽  
Vol 42 ◽  
pp. 152-153
Author(s):  
E. Loren Buhle ◽  
Pamela Rew ◽  
Ueli Aebi
Keyword(s):  
Structural Analysis ◽  
Rna Polymerase ◽  
Molecular Level ◽  
X Ray Diffraction ◽  
Helical Polymers ◽  
X Ray ◽  
E Coli ◽  
The Past ◽  
Ordered Arrays ◽  
Low Ionic Strength

While DNA-dependent RNA polymerase represents one of the key enzymes involved in transcription and ultimately in gene expression in procaryotic and eucaryotic cells, little progress has been made towards elucidation of its 3-D structure at the molecular level over the past few years. This is mainly because to date no 3-D crystals suitable for X-ray diffraction analysis have been obtained with this rather large (MW ~500 kd) multi-subunit (α2ββ'ζ). As an alternative, we have been trying to form ordered arrays of RNA polymerase from E. coli suitable for structural analysis in the electron microscope combined with image processing. Here we report about helical polymers induced from holoenzyme (α2ββ'ζ) at low ionic strength with 5-7 mM MnCl2 (see Fig. 1a). The presence of the ζ-subunit (MW 86 kd) is required to form these polymers, since the core enzyme (α2ββ') does fail to assemble into such structures under these conditions.

scholarly journals Correction: Observation of ordered arrays of endotaxially grown nanostructures from size-selected Cu-nanoclusters deposited on patterned substrates of Si

2021 ◽  
Author(s):  
Shyamal Mondal ◽  
Debasree Chowdhury ◽  
Pabitra Das ◽  
Biswarup Satpati ◽  
Debabrata Ghose ◽  
...  
Keyword(s):  
Chem Phys ◽  
Patterned Substrates ◽  
Ordered Arrays ◽  
Cu Nanoclusters ◽  
Phys Chem Chem Phys

Correction for ‘Observation of ordered arrays of endotaxially grown nanostructures from size-selected Cu-nanoclusters deposited on patterned substrates of Si’ by Shyamal Mondal et al., Phys. Chem. Chem. Phys., 2021, 23, 6009–6016 DOI: 10.1039/D0CP06089E.

Liquid crystalline ordered arrays of gold nanoparticles in evaporative deposits

2020 ◽  
Vol 709 (1) ◽  
pp. 24-42
Author(s):  
Imtiaz Ahmad ◽  
Rahim Jan ◽  
Hidayat Ullah Khan ◽  
Akhlaq Hussain
Keyword(s):  
Gold Nanoparticles ◽  
Liquid Crystalline ◽  
Ordered Arrays

Macroscopical monolayer films of ordered arrays of gold nanoparticles as SERS substrates for in-situ quantitative detection in aqueous solutions

Nanoscale ◽  
2021 ◽  
Author(s):  
Lixiang Xing ◽  
Cui Wang ◽  
Yi Cao ◽  
Jihui Zhang ◽  
Haibing Xia
Keyword(s):  
Gold Nanoparticles ◽  
Volume Fraction ◽  
Water Volume ◽  
Quantitative Detection ◽  
Monolayer Films ◽  
Au Nps ◽  
Sers Substrates ◽  
Ordered Arrays ◽  
Water Volume Fraction

In this work, macroscopical monolayer films of ordered arrays of gold nanoparticles (MMF-OA-Au NPs) are successfully prepared at the interfaces of toluene-diethylene glycol (DEG) with a water volume fraction of...

scholarly journals High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1164
Author(s):  
Gongli Xiao ◽  
Yanping Xu ◽  
Hongyan Yang ◽  
Zetao Ou ◽  
Jianyun Chen ◽  
...  
Keyword(s):  
Fano Resonance ◽  
Figure Of Merit ◽  
High Sensitivity ◽  
Refractive Index Sensor ◽  
Multimode Interference ◽  
Geometrical Parameters ◽  
The Finite Element Method ◽  
Plasmonic Sensor ◽  
Coupled Mode ◽  
Plasmonic Nanosensor

Herein, we propose a tunable plasmonic sensor with Fano resonators in an inverted U-shaped resonator. By manipulating the sharp asymmetric Fano resonance peaks, a high-sensitivity refractive index sensor can be realized. Using the multimode interference coupled-mode theory and the finite element method, we numerically simulate the influences of geometrical parameters on the plasmonic sensor. Optimizing the structure parameters, we can achieve a high plasmonic sensor with the maximum sensitivity for 840 nm/RIUand figure of merit for 3.9 × 105. The research results provide a reliable theoretical basis for designing high sensitivity to the next generation plasmonic nanosensor.

The eyespot of Chlamydomonas eugametos: a freeze-etch study

1973 ◽  
Vol 51 (4) ◽  
pp. 817-819 ◽  
Author(s):  
Kazuo Nakamura ◽  
D. F. Bray ◽  
J. W. Costerton ◽  
E. B. Wagenaar
Keyword(s):  
Cleavage Plane ◽  
Chloroplast Membrane ◽  
Ordered Arrays ◽  
Chlamydomonas Eugametos

The ultrastructure of the eyespot region of Chlamydomonas eugametos was studied with the freeze-etch technique. In the region of the eyespot the outer chloroplast membrane, when fractured medially, showed the presence of bulgings which appeared as either depressions or bumps depending on the cleavage plane. These deformations of the outer chloroplast membrane produced by the granules of the eyespot are about 80 mμ in diameter and form ordered arrays of 800 or more particles.

Three-Dimensional Ordered Arrays of 58×58×58 Å3 Hollow Frameworks in Ionic Crystals of M2Zn2-Substituted Polyoxometalates

2012 ◽  
Vol 51 (7) ◽  
pp. 1597-1601 ◽  
Author(s):  
Kosuke Suzuki ◽  
Yuji Kikukawa ◽  
Sayaka Uchida ◽  
Hiroko Tokoro ◽  
Kenta Imoto ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Ionic Crystals ◽  
Ordered Arrays

Ordered arrays of rare-earth silicide nanowires on Si(001)

2003 ◽  
Vol 251 (1-4) ◽  
pp. 657-661 ◽  
Author(s):  
Regina Ragan ◽  
Yong Chen ◽  
Douglas A.A. Ohlberg ◽  
Gilberto Medeiros-Ribeiro ◽  
R.Stanley Williams
Keyword(s):  
Rare Earth ◽  
Ordered Arrays ◽  
Rare Earth Silicide
Sign in / Sign up

Export Citation Format

Share Document