Micelle-Mediated Transport of a Sparingly Soluble Drug through Nanoporous Membranes

2007 ◽  
Vol 46 (19) ◽  
pp. 6118-6125 ◽  
Author(s):  
Abhoyjit S. Bhown ◽  
Pieter Stroeve
Keyword(s):  
Nanoporous Membranes ◽  
Sparingly Soluble Drug

EVAPORATION FROM ULTRATHIN NANOPOROUS MEMBRANES INTO LIQUID-MOIST AIR SYSTEMS

2018 ◽  
Author(s):  
Zhengmao Lu ◽  
Kyle L. Wilke ◽  
Daniel J. Preston ◽  
Ikuya Kinefuchi ◽  
Evelyn N. Wang
Keyword(s):  
Nanoporous Membranes ◽  
Moist Air

A STUDY OF BUBBLE VENTING IN A MICROCHANNEL WITH HYDROPHOBIC NANOPOROUS MEMBRANES

2011 ◽  
Vol 18 (1) ◽  
pp. 1-10
Author(s):  
Jin-Cherng Shyu ◽  
Kai-Shing Yang ◽  
Wei-Shen Chen ◽  
Shih-Ying Chang ◽  
Chi-Chuan Wang
Keyword(s):  
Nanoporous Membranes

scholarly journals Single-File Water Flux Through Two-Dimensional Nanoporous Membranes

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Myung Eun Suk
Keyword(s):  
Water Flux ◽  
Interaction Strength ◽  
High Water ◽  
Potential Of Mean Force ◽  
Proximal Region ◽  
Dominant Factor ◽  
Chemical Characteristics ◽  
Nanoporous Membranes ◽  
Two Dimensional ◽  
Single File

Abstract Recent advances in the development of two-dimensional (2D) materials have facilitated a wide variety of surface chemical characteristics obtained by composing atomic species, pore functionalization, etc. The present study focused on how chemical characteristics such as hydrophilicity affects the water transport rate in hexagonal 2D membranes. The membrane–water interaction strength was tuned to change the hydrophilicity, and the sub-nanometer pore was used to investigate single-file flux, which is known to retain excellent salt rejection. Due to the dewetting behavior of the hydrophobic pore, the water flux was zero or nominal below the threshold interaction strength. Above the threshold interaction strength, water flux decreased with an increase in interaction strength. From the potential of mean force analysis and diffusion coefficient calculations, the proximal region of the pore entrance was found to be the dominant factor degrading water flux at the highly hydrophilic pore. Furthermore, the superiority of 2D membranes over 3D membranes appeared to depend on the interaction strength. The present findings will have implications in the design of 2D membranes to retain a high water filtration rate.

A predictive model of nanoparticle capture on ultrathin nanoporous membranes

2021 ◽  
pp. 119357
Author(s):  
Kilean Lucas ◽  
Mehdi Dehghani ◽  
Tejas Khire ◽  
Thomas Gaborski ◽  
Jonathan D. Flax ◽  
...  
Keyword(s):  
Predictive Model ◽  
Nanoporous Membranes

scholarly journals Computational Molecular Modeling of Transport Processes in Nanoporous Membranes

Processes ◽  
2018 ◽  
Vol 6 (8) ◽  
pp. 124 ◽  
Author(s):  
Kevin Hinkle ◽  
Xiaoyu Wang ◽  
Xuehong Gu ◽  
Cynthia Jameson ◽  
Sohail Murad
Keyword(s):  
Molecular Modeling ◽  
Temporal Resolution ◽  
High Performance ◽  
Low Cost ◽  
Membrane Surface ◽  
Experimental Studies ◽  
Nanoporous Materials ◽  
Transport Processes ◽  
Zeolite Membrane ◽  
Nanoporous Membranes

In this report we have discussed the important role of molecular modeling, especially the use of the molecular dynamics method, in investigating transport processes in nanoporous materials such as membranes. With the availability of high performance computers, molecular modeling can now be used to study rather complex systems at a fraction of the cost or time requirements of experimental studies. Molecular modeling techniques have the advantage of being able to access spatial and temporal resolution which are difficult to reach in experimental studies. For example, sub-Angstrom level spatial resolution is very accessible as is sub-femtosecond temporal resolution. Due to these advantages, simulation can play two important roles: Firstly because of the increased spatial and temporal resolution, it can help understand phenomena not well understood. As an example, we discuss the study of reverse osmosis processes. Before simulations were used it was thought the separation of water from salt was purely a coulombic phenomenon. However, by applying molecular simulation techniques, it was clearly demonstrated that the solvation of ions made the separation in effect a steric separation and it was the flux which was strongly affected by the coulombic interactions between water and the membrane surface. Additionally, because of their relatively low cost and quick turnaround (by using multiple processor systems now increasingly available) simulations can be a useful screening tool to identify membranes for a potential application. To this end, we have described our studies in determining the most suitable zeolite membrane for redox flow battery applications. As computing facilities become more widely available and new computational methods are developed, we believe molecular modeling will become a key tool in the study of transport processes in nanoporous materials.

Gas separation in nanoporous membranes formed by etching ion irradiated polymer foils

2010 ◽  
Vol 79 (3) ◽  
pp. 204-207 ◽  
Author(s):  
W. Ensinger ◽  
R. Sudowe ◽  
R. Brandt ◽  
R. Neumann
Keyword(s):  
Gas Separation ◽  
Nanoporous Membranes ◽  
Polymer Foils
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