Geometrical implication of ion transporters employing an ellipsoidal hollow structure in pseudo-solid electrolytes

Nanoscale ◽  
2015 ◽  
Vol 7 (6) ◽  
pp. 2729-2734 ◽  
Author(s):  
Youngjin Kim ◽  
Jong Hyuk Park ◽  
Jihoon Jung ◽  
Sang-Soo Lee

We demonstrate facilitated ion transport in oligomer electrolytes by introducing TiO2 hollow particles of ellipsoidal and spherical shapes.

2017 ◽  
Vol 310 ◽  
pp. 71-80 ◽  
Author(s):  
Didier Devaux ◽  
Irune Villaluenga ◽  
Mahesh Bhatt ◽  
Deep Shah ◽  
X. Chelsea Chen ◽  
...  

2020 ◽  
Vol 8 (37) ◽  
pp. 19603-19611
Author(s):  
Adam R. Symington ◽  
John Purton ◽  
Joel Statham ◽  
Marco Molinari ◽  
M. Saiful Islam ◽  
...  

Solid electrolytes for all-solid-state batteries are generating considerable research interest as a means to improving their safety, stability and performance.


2019 ◽  
Vol 125 ◽  
pp. 681-713 ◽  
Author(s):  
Markus Ganser ◽  
Felix E. Hildebrand ◽  
Marc Kamlah ◽  
Robert M. McMeeking

2008 ◽  
Vol 10 (29) ◽  
pp. 4211 ◽  
Author(s):  
B. Roling ◽  
S. Murugavel ◽  
A. Heuer ◽  
L. Lühning ◽  
R. Friedrich ◽  
...  

We present the results of a molecular-dynamics study of the superionic Li + conductor Li 2 MgCl 4 . We find that both the octahedral and tetrahedral sublattices of the material play an important role in the Li + conduction mechanism. Both ‘hopping’ and ‘continuous’ diffusion modes are important in effecting ion transport.


2017 ◽  
Vol 312 (2) ◽  
pp. G153-G163 ◽  
Author(s):  
Shelley Fong ◽  
John A Chiorini ◽  
James Sneyd ◽  
Vinod Suresh

Previous studies have shown that localized delivery of the aquaporin-1 (AQP1) gene to the parotid duct can restore saliva flow in minipigs following irradiation-induced salivary hypofunction. The resulting flow rate and electrochemistry of secreted saliva contradicts current understanding of ductal fluid transport. We hypothesized that changes in expression of ion transport proteins have occurred following AQP1 transfection. We use a mathematical model of ion and fluid transport across the parotid duct epithelial cells to predict the expression profile of ion transporters that are consistent with the experimental measurements of saliva composition and secretion rates. Using a baseline set of parameters, the model reproduces the data for the irradiated, non-AQP1-transfected case. We propose three scenarios which may have occurred after transfection, which differ in the location of the AQP1 gene. The first scenario places AQP1 within nonsecretory cells, and requires that epithelial sodium channel (ENaC) expression is greatly reduced (1.3% of baseline), and ductal bicarbonate concentration is increased from 40.6 to 137.0 mM, to drive water secretion into the duct. The second scenario introduces the AQP1 gene into all ductal cells. The final scenario has AQP1 primarily in the proximal duct cells which secrete water under baseline conditions. We find the change in the remaining cells includes a 95.8% reduction in ENaC expression, enabling us to reproduce all experimental ionic concentrations within 9 mM. These findings provide a mechanistic basis for the observations and will guide the further development of gene transfer therapy for salivary hypofunction. NEW & NOTEWORTHY Following transfection of aquaporin into the parotid ducts of minipigs with salivary hypofunction, the resulting increase in salivary flow rates contradicts current understanding of ductal fluid transport. We show that the change in saliva electrochemistry and flow rate can be explained by changes in expression of ion transporters in the ductal cell membranes, using a mathematical model replicating a single parotid duct.


Sign in / Sign up

Export Citation Format

Share Document