Solvothermal Transformation of a Calcium Oleate Precursor into Large-Sized Highly Ordered Arrays of Ultralong Hydroxyapatite Microtubes

2014 ◽  
Vol 20 (23) ◽  
pp. 7116-7121 ◽  
Author(s):  
Bing-Qiang Lu ◽  
Ying-Jie Zhu ◽  
Feng Chen ◽  
Chao Qi ◽  
Xin-Yu Zhao ◽  
...  
Keyword(s):  
Ordered Arrays ◽  
Calcium Oleate

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...

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
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