Capillary Trapping
Capillary Trapping - Related Videos
08:50
Capillary Electrophoresis (CE)
0 Views •
2023
Source: Laboratory of Dr. B. Jill Venton - University of Virginia Capillary electrophoresis (CE) is a separation technique that separates molecules in an electric field according to size and charge. CE is performed in a small glass tube called a capillary that is filled with an electrolyte solution. Analytes are separated due to differences in electrophoretic mobility, which varies with charge, solvent viscosity, and size. Traditional electrophoresis in gels is limited in the amount of voltage...
01:41
Social Traps
0 Views •
2020
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned more cows, the larger...
14:53
Capillary Electrophoresis Separation of Monoclonal Antibody Isoforms Using a Neutral Capillary
0 Views •
Cited by 2 •
2017
Here, we present a comprehensive capillary zone electrophoresis protocol for the assessment of intrinsic physicochemical heterogeneity of monoclonal antibodies as a quality attribute.
11:45
Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
0 Views •
Cited by 19 •
2017
This paper presents a microfabrication methodology for surface ion traps, as well as a detailed experimental procedure for trapping ytterbium ions in a room-temperature environment.
13:39
Optical Trapping of Nanoparticles
0 Views •
Cited by 7 •
2013
The following setup approach details low power optical trapping of dielectric nanoparticles using a double-nanohole in metal film.
FAQs
Wettability determines which fluid preferentially coats the pore surfaces, while pore geometry governs how fluids move through pore spaces and throats. Together, these properties influence whether the displaced nonwetting phase becomes divided into isolated ganglia and whether interfacial forces can hold those ganglia in place. Their effects therefore shape immobilization and later remobilization risk.
During imbibition, the advancing wetting fluid enters pore throats and displaces the nonwetting phase unevenly. Narrow connections can separate that phase into disconnected ganglia rather than one continuous body. Once connectivity is lost, the trapped portions are less able to move through the pore network, helping explain why the process can immobilize fluid.
Fluid saturation helps determine how much of the nonwetting phase remains distributed as disconnected ganglia after imbibition. Because saturation acts alongside interfacial tension, wettability, and pore geometry, changing the phase proportions can alter whether trapped fluid stays immobilized. Engineers therefore treat saturation as a key condition when interpreting multiphase flow and recovery behavior.
In geological carbon storage, engineers examine whether injected carbon dioxide can be retained within pore spaces after a wetting phase advances. Capillary Trapping provides a basis for assessing this immobilization because the relevant controls include interfacial tension, wettability, pore geometry, and fluid saturation. This evaluation helps engineers assess storage behavior and subsurface containment.
Reservoir management can use knowledge of Capillary Trapping to understand why some displaced fluid does not remain continuously mobile. By relating fluid recovery to pore geometry, wettability, interfacial tension, and saturation, engineers can evaluate how multiphase conditions influence retention. This context supports designing improved reservoir-management methods rather than considering recovery as a single-phase problem.
In soils and other porous media, Capillary Trapping matters because it can alter how a nonwetting fluid is retained and transported. Disconnected ganglia may remain in pore spaces instead of moving as a connected phase, so the phenomenon becomes relevant to contaminant transport and environmental protection. Engineers can use this understanding when evaluating subsurface behavior.