scholarly journals Relative stability of planar clusters B11, B12, and B13 in neutral- and charged-states

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Levan Chkhartishvili
Keyword(s):  
Binding Energy ◽  
Relative Stability ◽  
Energy Criterion ◽  
Nanostructured Coating ◽  
Neutron Absorption ◽  
Coating Materials ◽  
Boron Cluster ◽  
Boron Clusters ◽  
Planar Structures ◽  
Electromagnetic Radiations

Theoretically, within the diatomic model, there is studied the relative stability of most abundant boron clusters B11, B12, and B13 with planar structures in neutral, positively and negatively charge-states. According to the specific (pet atom) binding energy criterion, B12+ (6.49 eV) is found to be the most stable boron cluster, while B11– + B13+ (5.83 eV) neutral pair is expected to present the preferable ablation channel for boron-rich solids. Obtained results would be applicable in production of boron-clusters-based nanostructured coating materials with super-properties such as lightness, hardness, conductivity, chemically inertness, neutron-absorption, etc. making them especially effective for protection against cracking, wear, corrosion, neutron- and electromagnetic-radiations, etc.

scholarly journals Relative stability of planar clusters B11, B12, and B13 in neutral- and charged-states

2018 ◽  
Author(s):  
Levan Chkhartishvili
Keyword(s):  
Binding Energy ◽  
Relative Stability ◽  
Energy Criterion ◽  
Nanostructured Coating ◽  
Neutron Absorption ◽  
Coating Materials ◽  
Boron Cluster ◽  
Boron Clusters ◽  
Planar Structures ◽  
Electromagnetic Radiations

Theoretically, within the diatomic model, there is studied the relative stability of most abundant boron clusters B11, B12, and B13 with planar structures in neutral, positively and negatively charge-states. According to the specific (pet atom) binding energy criterion, B12+ (6.49 eV) is found to be the most stable boron cluster, while B11– + B13+ (5.83 eV) neutral pair is expected to present the preferable ablation channel for boron-rich solids. Obtained results would be applicable in production of boron-clusters-based nanostructured coating materials with super-properties such as lightness, hardness, conductivity, chemically inertness, neutron-absorption, etc. making them especially effective for protection against cracking, wear, corrosion, neutron- and electromagnetic-radiations, etc.

Investigation of the Possibility of Application of Boron Clusters in Composite Materials with Metal Matrix

2008 ◽  
Vol 59 ◽  
pp. 96-100 ◽  
Author(s):  
Vladimir A. Popov ◽  
K.Y. Zhizhin ◽  
N.T. Kuznetsov ◽  
K.P. Staudhammer ◽  
V.M. Retivov
Keyword(s):  
Composite Materials ◽  
Mechanical Alloying ◽  
Metal Matrix ◽  
Chemical Properties ◽  
Matrix Composites ◽  
Cluster Anions ◽  
Boron Cluster ◽  
Boron Clusters ◽  
Physical Chemical ◽  
Light Components

The main results of the investigation of boron-containing compounds that are planed to use as light components for creation of metal-matrix composites (MMC) are presented in the paper. A number of new general procedures have been developed, physical-chemical properties of boron cluster anions BnHn 2- (n = 10, 12) were investigated. Method of MMC fabrication is based on mechanical alloying and following compaction.

ON EINSTEIN CLUSTERS

2012 ◽  
Vol 12 ◽  
pp. 146-173 ◽  
Author(s):  
ANDREA GERALICO ◽  
FRANCESCA POMPI ◽  
REMO RUFFINI
Keyword(s):  
Binding Energy ◽  
Energy Density ◽  
Energy Criterion ◽  
Galactic Halos ◽  
Density Profiles ◽  
Constant Energy ◽  
White Type ◽  
Constant Energy Density ◽  
The Stability

The classification of Einstein clusters based on the analysis of the stability of circular orbits according to the effective potential theory is compared with that resulting from the application of the maximum binding energy criterion. The stability properties are investigated for different choices of the energy density profile. The cases of clusters with constant energy density, those characterized by arbitrarily large values of the central gravitational redshift and clusters with Burkert-type and Navarro-Frenk-White-type energy density profiles used in the literature to model galactic halos are discussed.

scholarly journals Quasi-planar elemental clusters in pair interactions approximation

Open Physics ◽  
2016 ◽  
Vol 14 (1) ◽  
pp. 617-620 ◽  
Author(s):  
Levan Chkhartishvili
Keyword(s):  
Binding Energy ◽  
Relative Stability ◽  
Dangling Bonds ◽  
Coordination Numbers ◽  
Theoretical Frame ◽  
Pair Interactions

AbstractThe pair-interactions approximation, when applied to describe elemental clusters, only takes into account bonding between neighboring atoms. According to this approach, isomers of wrapped forms of 2D clusters – nanotubular and fullerene-like structures – and truly 3D clusters, are generally expected to be more stable than their quasi-planar counterparts. This is because quasi-planar clusters contain more peripheral atoms with dangling bonds and, correspondingly, fewer atoms with saturated bonds. However, the differences in coordination numbers between central and peripheral atoms lead to the polarization of bonds. The related corrections to the molar binding energy can make small, quasi-planar clusters more stable than their 2D wrapped allotropes and 3D isomers. The present work provides a general theoretical frame for studying the relative stability of small elemental clusters within the pair interactions approximation.

scholarly journals Raman cell imaging with boron cluster molecules conjugated with biomolecules

RSC Advances ◽  
2019 ◽  
Vol 9 (41) ◽  
pp. 23973-23978 ◽  
Author(s):  
Masahito Mochizuki ◽  
Shinichi Sato ◽  
Syifa Asatyas ◽  
Zbigniew J. Leśnikowski ◽  
Tomohiro Hayashi ◽  
...  
Keyword(s):  
Cell Imaging ◽  
Boron Cluster ◽  
Boron Clusters ◽  
Raman Cell

We performed Raman cell imaging using boron clusters.

Boron clusters as a platform for new materials: composites of nucleic acids and oligofunctionalized carboranes (C2B10H12) and their assembly into functional nanoparticles

Nanoscale ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 103-114 ◽  
Author(s):  
Damian Kaniowski ◽  
Katarzyna Ebenryter-Olbinska ◽  
Katarzyna Kulik ◽  
Slawomir Janczak ◽  
Anna Maciaszek ◽  
...  
Keyword(s):  
Gene Expression ◽  
Nucleic Acids ◽  
Gene Expression Regulation ◽  
Therapeutic Potential ◽  
Building Blocks ◽  
New Materials ◽  
Boron Cluster ◽  
Boron Clusters ◽  
Functional Nanoparticles ◽  
Dual Action

The building blocks based on boron cluster spanning two short DNA adapters assemble into functional nanoparticles due to the formation of DNA helices. They offer dual-action therapeutic potential, e.g., in the BNCT and gene expression regulation.

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