scholarly journals Single-layer ZnS supported on Au(111): A combined XPS, LEED, STM and DFT study

2017 ◽  
Vol 658 ◽  
pp. 9-14 ◽  
Author(s):  
Xingyi Deng ◽  
Dan C. Sorescu ◽  
Junseok Lee
Keyword(s):  
Single Layer ◽  
Dft Study

Adsorption of DNA/RNA nucleobases onto single-layer MoS2 and Li-Doped MoS2: A dispersion-corrected DFT study

2018 ◽  
Vol 434 ◽  
pp. 176-187 ◽  
Author(s):  
Meisam Sadeghi ◽  
Mohsen Jahanshahi ◽  
Morteza Ghorbanzadeh ◽  
Ghasem Najafpour
Keyword(s):  
Single Layer ◽  
Dft Study

Oxygen adsorption on single layer graphyne: a DFT study

2014 ◽  
Vol 16 (3) ◽  
pp. 974-980 ◽  
Author(s):  
Baotao Kang ◽  
Hongguang Liu ◽  
Jin Yong Lee
Keyword(s):  
Single Layer ◽  
Oxygen Adsorption ◽  
Dft Study

Possible doping of single-layer MoS2 with Pt: A DFT study

2018 ◽  
Vol 462 ◽  
pp. 409-416 ◽  
Author(s):  
Dominique Mombrú ◽  
Ricardo Faccio ◽  
Álvaro W. Mombrú
Keyword(s):  
Single Layer ◽  
Dft Study

A comparative study on the application of single-layer MoS2 and WS2 for probing methylated and mutated nucleobases: a vdW-DFT study†

2020 ◽  
Vol 501 ◽  
pp. 143892
Author(s):  
Seyed-Mohammad Tabatabaei ◽  
Najmeh Honari ◽  
Mohammad-Javad Farshchi-Heydari ◽  
Morteza Rastgoo ◽  
Morteza Fathipour
Keyword(s):  
Comparative Study ◽  
Single Layer ◽  
Dft Study

Electronic and magnetic properties of Re-doped single-layer MoS2: A DFT study

2017 ◽  
Vol 128 ◽  
pp. 287-293 ◽  
Author(s):  
Puju Zhao ◽  
Jiming Zheng ◽  
Ping Guo ◽  
Zhenyi Jiang ◽  
Like Cao ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Layer ◽  
Dft Study ◽  
Electronic And Magnetic Properties

Crystalline order to a resolution of 4.7 A in the sheath of Methanospirilium hungatii: A cross-beta structure

1984 ◽  
Vol 42 ◽  
pp. 214-215
Author(s):  
Murray Stewart ◽  
T.J. Beveridge ◽  
D. Sprott
Keyword(s):  
Cell Wall ◽  
Single Layer ◽  
Uranyl Acetate ◽  
Optical Diffraction ◽  
Tube Axis ◽  
Basic Subunit ◽  
Beta Structure ◽  
Diffraction Patterns ◽  
Protein Treatment ◽  
General Appearance

The archaebacterium Methanospirillum hungatii has a sheath as part of its cell wall which is composed mainly of protein. Treatment with dithiothreitol or NaOH released the intact sheaths and electron micrographs of this material negatively stained with uranyl acetate showed flattened hollow tubes, about 0.5 μm diameter and several microns long, in which the patterns from the top and bottom were superimposed. Single layers, derived from broken tubes, were also seen and were more simply analysed. Figure 1 shows the general appearance of a single layer. There was a faint axial periodicity at 28.5 A, which was stronger at irregular multiples of 28.5 A (3 and 4 times were most common), and fine striations were also seen at about 3° to the tube axis. Low angle electron diffraction patterns (not shown) and optical diffraction patterns (Fig. 2) from these layers showed a complex meridian (as a result of the irregular nature of the repeat along the tube axis) which showed a clear maximum at 28.5 A, consistent with the basic subunit spacing.

Differentiation Processes of the Ocellar Retina of the Honeybee (Apis Mellifera L.)

1990 ◽  
Vol 48 (3) ◽  
pp. 430-431
Author(s):  
Maria Anna Pabst
Keyword(s):  
Apis Mellifera ◽  
Distal Part ◽  
Cell Layer ◽  
Single Layer ◽  
Photoreceptor Cells ◽  
Distal Segment ◽  
Compound Eyes ◽  
Thin Sections ◽  
Ultrastructural Studies ◽  
Adult Worker

In addition to the compound eyes, honeybees have three dorsal ocelli on the vertex of the head. Each ocellus has about 800 elongated photoreceptor cells. They are paired and the distal segment of each pair bears densely packed microvilli forming together a platelike fused rhabdom. Beneath a common cuticular lens a single layer of corneagenous cells is present.Ultrastructural studies were made of the retina of praepupae, different pupal stages and adult worker bees by thin sections and freeze-etch preparations. In praepupae the ocellar anlage consists of a conical group of epidermal cells that differentiate to photoreceptor cells, glial cells and corneagenous cells. Some photoreceptor cells are already paired and show disarrayed microvilli with circularly ordered filaments inside. In ocelli of 2-day-old pupae, when a retinogenous and a lentinogenous cell layer can be clearly distinguished, cell membranes of the distal part of two photoreceptor cells begin to interdigitate with each other and so start to form the definitive microvilli. At the beginning the microvilli often occupy the whole width of the developing rhabdom (Fig. 1).

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