Universal Size Dependence of Integral Enthalpy and Entropy for Solid–Solid Phase Transitions of Nanocrystals

2017 ◽  
Vol 121 (44) ◽  
pp. 24831-24836 ◽  
Author(s):  
Zixiang Cui ◽  
Huijuan Duan ◽  
Qingshan Fu ◽  
Yongqiang Xue ◽  
Shuting Wang
Keyword(s):  
Phase Transitions ◽  
Size Dependence ◽  
Solid Phase ◽  
Integral Enthalpy ◽  
Enthalpy And Entropy

Crystal Structure of the High-temperature Solid Phases of Choline Tetrafluoroborate and Iodide

1997 ◽  
Vol 52 (8-9) ◽  
pp. 679-680 ◽  
Author(s):  
Hiroyuki Ishida ◽  
Hiroshi Ono ◽  
Ryuichi Ikeda
Keyword(s):  
Crystal Structure ◽  
Phase Transitions ◽  
High Temperature ◽  
Solid Phase ◽  
Temperature Phase ◽  
X Ray ◽  
Cscl Type ◽  
Enthalpy And Entropy Changes ◽  
Enthalpy And Entropy ◽  
Solid Phases

Abstract The crystal structure of the highest-and second highest-temperature solid phases of choline tetrafluoroborate and iodide was determined by X-ray powder diffraction. The structure in the highest-temperature phase of both salts is NaCl-type cubic (a = 10.16(2) Å, Z = 4 for tetrafluorobo-rate; a = 10.08(2) Å, Z = 4 for iodide). The second highest-temperature phase of tetrafluoroborate and iodide is CsCl-type cubic (a = 6.198(6) Å and Z = 1) and tetragonal (a = 8.706(2) Å, c = 6.144(6) Å, and Z = 2), respectively. DSC was carried out for the iodide, where the presence of three solid-solid phase transitions was confirmed. Enthalpy and entropy changes of these transitions were evaluated.

scholarly journals Prion-Like Proteins in Phase Separation and Their Link to Disease

Biomolecules ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1014
Author(s):  
Macy L. Sprunger ◽  
Meredith E. Jackrel
Keyword(s):  
Protein Folding ◽  
Phase Transitions ◽  
Phase Separation ◽  
Liquid Phase ◽  
Protein Misfolding ◽  
Solid Phase ◽  
Liquid Phase Separation ◽  
Therapeutic Approaches ◽  
Important Physiological Process ◽  
Liquid Liquid Phase Separation

Aberrant protein folding underpins many neurodegenerative diseases as well as certain myopathies and cancers. Protein misfolding can be driven by the presence of distinctive prion and prion-like regions within certain proteins. These prion and prion-like regions have also been found to drive liquid-liquid phase separation. Liquid-liquid phase separation is thought to be an important physiological process, but one that is prone to malfunction. Thus, aberrant liquid-to-solid phase transitions may drive protein aggregation and fibrillization, which could give rise to pathological inclusions. Here, we review prions and prion-like proteins, their roles in phase separation and disease, as well as potential therapeutic approaches to counter aberrant phase transitions.

scholarly journals Study of the kinetics of solid-solid phase transitions in HMX

2018 ◽  
Author(s):  
P. Bowlan ◽  
L. Smilowitz ◽  
B. F. Henson ◽  
N. Suvorova ◽  
D. Oschwald
Keyword(s):  
Phase Transitions ◽  
Solid Phase ◽  
Kinetics Of
Sign in / Sign up

Export Citation Format

Share Document