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Title: Fluid-based gating mechanism with tunable multiphase selectivity and antifouling behavior

Abstract

A gating mechanism that uses a capillary stabilized liquid as a reversible, reconfigurable gate that fills and seals pores in the closed state, and creates a non-fouling, liquid-lined pore in the open state is disclosed. Theoretical modeling and experiments demonstrate that for each transport substance, the gating threshold—the pressure needed to open the pores—can be rationally tuned over a wide pressure range. This enables realizing in one system differential response profiles for a variety of liquids and gases, even letting liquids flow through the pore while preventing gas from escaping. These capabilities allow dynamic modulation of gas-liquid sorting and to separate multi-phase mixtures, with the liquid lining ensuring sustained antifouling behavior. Because the liquid gating strategy enables efficient short-term and long-term operation and can be applied to a variety of pore structures and membrane materials, and to nano, micro as well as macroscale fluid systems, the gating systems is useful in a wide range of applications.

Inventors:
; ; ;
Issue Date:
Research Org.:
Harvard Univ., Cambridge, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568518
Patent Number(s):
10330218
Application Number:
15/549,991
Assignee:
President and Fellows of Harvard College (Cambridge, MA)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
DOE Contract Number:  
AR0000326
Resource Type:
Patent
Resource Relation:
Patent File Date: 02/09/2016
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Aizenberg, Joanna, Hou, Xu, Khan, Mughees, and Tesler, Alexander. Fluid-based gating mechanism with tunable multiphase selectivity and antifouling behavior. United States: N. p., 2019. Web.
Aizenberg, Joanna, Hou, Xu, Khan, Mughees, & Tesler, Alexander. Fluid-based gating mechanism with tunable multiphase selectivity and antifouling behavior. United States.
Aizenberg, Joanna, Hou, Xu, Khan, Mughees, and Tesler, Alexander. Tue . "Fluid-based gating mechanism with tunable multiphase selectivity and antifouling behavior". United States. https://www.osti.gov/servlets/purl/1568518.
@article{osti_1568518,
title = {Fluid-based gating mechanism with tunable multiphase selectivity and antifouling behavior},
author = {Aizenberg, Joanna and Hou, Xu and Khan, Mughees and Tesler, Alexander},
abstractNote = {A gating mechanism that uses a capillary stabilized liquid as a reversible, reconfigurable gate that fills and seals pores in the closed state, and creates a non-fouling, liquid-lined pore in the open state is disclosed. Theoretical modeling and experiments demonstrate that for each transport substance, the gating threshold—the pressure needed to open the pores—can be rationally tuned over a wide pressure range. This enables realizing in one system differential response profiles for a variety of liquids and gases, even letting liquids flow through the pore while preventing gas from escaping. These capabilities allow dynamic modulation of gas-liquid sorting and to separate multi-phase mixtures, with the liquid lining ensuring sustained antifouling behavior. Because the liquid gating strategy enables efficient short-term and long-term operation and can be applied to a variety of pore structures and membrane materials, and to nano, micro as well as macroscale fluid systems, the gating systems is useful in a wide range of applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {6}
}

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