Molecular Mobility

2014 ◽  
pp. 15-36
Keyword(s):  
Molecular Mobility

Features of radiothermoluminescence of polypropylene and ethylene propylenediene elastomer SKEPT-4044 compositions with nanoscale metal-containing fillers

2020 ◽  
pp. 66-73
Author(s):  
A.M. Magerramov ◽  
◽  
N.I. Kurbanova ◽  
M.N. Bayramov ◽  
N.A. Alimirzoyeva ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Molecular Mobility ◽  
Fe3o4 Nanoparticles ◽  
Low Temperatures ◽  
Frost Resistance ◽  
Relaxation Processes ◽  
Ethylene Propylene ◽  
Temperature Range ◽  
Β Relaxation

Using radiothermoluminescence (RTL), the molecular mobility features in the temperature range of 77-300 K were studied for the polypropylene (PP)/ethylene propylene diene elastomer SKEPT-4044 with NiO, Cu2O and Fe3O4 nanoparticles (NPs) based on ABS-acrylonitrile butadiene or SCS-divinyl styrene matrices. It has been shown that the introduction of nanofillers in PP significantly affects the nature and temperature of γ- and β-relaxation processes, while the region of manifestation of the β-process noticeably shifts to the region of low temperatures. Composites with Cu2O NPs have a higher β-transition temperature Tβ than composites with other NPs. It was found that PP/SKEPT-4044 composites with Cu2O NPs with a dispersion of 11-15 nm and acrylonitrile butadiene thermoplastics have optimal frost resistance compared to other compositions.

Using NMR to Test Molecular Mobility during a Chemical Reaction

2021 ◽  
Vol 12 (9) ◽  
pp. 2370-2375
Author(s):  
Huan Wang ◽  
Tian Huang ◽  
Steve Granick
Keyword(s):  
Chemical Reaction ◽  
Molecular Mobility

scholarly journals Synergy of molecularly mobile polyrotaxane surfaces with endothelial cell co-culture for mesenchymal stem cell mineralization

RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18685-18692
Author(s):  
Hiroki Masuda ◽  
Yoshinori Arisaka ◽  
Masahiro Hakariya ◽  
Takanori Iwata ◽  
Tetsuya Yoda ◽  
...  
Keyword(s):  
Stem Cells ◽  
Endothelial Cells ◽  
Mesenchymal Stem Cells ◽  
Stem Cell ◽  
Endothelial Cell ◽  
Mesenchymal Stem Cell ◽  
Molecular Mobility ◽  
Culture System

Molecular mobility of polyrotaxane surfaces promoted mineralization in a co-culture system of mesenchymal stem cells and endothelial cells.

Dual effect of molecular mobility and functional groups of polyrotaxane surfaces on the fate of mesenchymal stem cells

2021 ◽  
Author(s):  
Ruriko Sekiya-Aoyama ◽  
Yoshinori Arisaka ◽  
Masahiro Hakariya ◽  
Hiroki Masuda ◽  
Takanori Iwata ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Functional Groups ◽  
Molecular Mobility ◽  
Adipocyte Differentiation ◽  
Negative Charge ◽  
Dual Effect ◽  
Independent Parameters

Mesenchymal stem cells on polyrotaxane surfaces underwent enhanced osteoblast and adipocyte differentiation. Two independent parameters, high molecular mobility and negative charge on the surfaces, may not offset the effect to promote both differentiation.

Effect of Rotational Degrees of Freedom on Molecular Mobility

2013 ◽  
Vol 117 (13) ◽  
pp. 6800-6806 ◽  
Author(s):  
M. Jafary-Zadeh ◽  
C. D. Reddy ◽  
Yong-Wei Zhang
Keyword(s):  
Molecular Mobility ◽  
Degrees Of Freedom ◽  
Rotational Degrees Of Freedom
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