A proton pump is an integral membrane protein that is capable of moving protons across a biological membrane.

The sinus cavity is lined with a membrane called the Sniderian membrane, which may or may not be perforated.

The most commonly used membrane is Nafion by DuPont, which relies on liquid water humidification of the membrane to transport protons.

Solutes able to freely cross the membrane do not affect tonicity because they will always be in equal concentrations on both sides of the membrane.

When the virus comes in contact with the membrane of a host cell, it binds to a receptor site and triggers a folding in of the membrane.

It contains large numbers of integral membrane proteins called porins.

Contaminated sources may require dilution to achieve a countable membrane.

The bacterial outer membrane is found in gram negative bacteria.

The flavors of the food a pregnant woman eats find their way into the amniotic fluid, which is continuously swallowed by the fetus.

A new uniform membrane, M 02, is now also in service.

Structure The spherical virus particles (virions) of Togaviridae have a diameter of 50 to 70 nm and are covered by a lipid membrane (viral envelope), derived from the host cell membrane.

In 1978, he decided to apply protein chemical methods to membrane proteins.

Attachment, or adsorption, occurs between the viral particle and the host cell membrane.

These negative strands will then form complexes with the N, P, L and M proteins and then travel to the inner membrane of the cell, where a G protein has embedded itself in the membrane.

Calpain breaks down a molecule called spectrin, which holds the membrane onto the cytoskeleton, causing the formation of blebs and the breakdown of the cytoskeleton and the membrane, and ultimately the death of the cell.

And you reverse the pressure on your membrane once you've cooked it. Pop it out.

In addition, electrical interactions take place between closely apposed neuronal elements without obvious membrane specializations.

In practical terms, not all westerns reveal protein only at one band in a membrane.

Proteins from known HIV infected cells are separated and blotted on a membrane as above.

For example, a K sensor wasproduced by incorporating valinomycin into a thin membrane (Schultz, 1996).

Guidance Note on the Membrane Filter Method for Estimating Airborne Asbestos Dust NOHSC 3003(1988)

And we're working a lot with the stem cells that we published on two years ago, stem cells from the amniotic fluid, and the placenta, which have those properties.

Proton exchange membrane fuel cells, also known as polymer electrolyte membrane (PEM) fuel cells (PEMFC), are a type of fuel cell being developed for transport applications as well as for stationary fuel cell applications and portable fuel cell applications.

A stream of hydrogen is delivered to the anode side of the membrane electrode assembly (MEA).

It is involved in the transfer of amino acids across the cellular membrane and leukotriene metabolism.

As DAPI can pass through an intact cell membrane, it can be used to stain both live and fixed cells, though it passes through the membrane less efficiently in live cells and therefore the effectiveness of the stain is lower.

Protein binding is based upon hydrophobic interactions, as well as charged interactions between the membrane and protein.

The amniotic fluid increases in quantity up to the sixth or seventh month of pregnancy, after which it diminishes somewhat at the end of pregnancy it amounts to about 1 liter.

Blocking Since the membrane has been chosen for its ability to bind protein and as both antibodies and the target are proteins, steps must be taken to prevent the interactions between the membrane and the antibody used for detection of the target protein.

These protons, as well as additional protons pumped across the thylakoid membrane coupled with the electron transfer chain, form a proton gradient across the membrane that drives photophosphorylation and thus the generation of chemical energy in the form of adenosine triphosphate (ATP).

Part of the chamber opens to a differentially permeable membrane that lets water molecules through, but not the solute particles.

They are due to copper deposition in part of the cornea (Descemet's membrane) as a result of particular liver diseases.

In this case the cell neither swells nor shrinks because there is no concentration gradient for water across the cell membrane.

Because sounds from the outside world have to travel through the mother's abdominal tissue and through the amniotic fluid that surrounds the fetus, the voices fetuses hear, starting around the fourth month of gestation, are muted and muffled.

But those bubbles have membranes very similar to the membrane of every cell of every living thing on Earth looks like, like this.

Proteins in the third layer (VP7 and the VP4 spike) disrupt the membrane of the endosome, creating a difference in the calcium concentration.

The membrane must also not allow either gas to pass to the other side of the cell, a problem known as gas crossover.

The first type are less than 0.7 micrometres in diameter, contain actin and carry portions of plasma membrane between cells in both directions.

True positivity requires localisation of signal to the cell membrane and or paranuclear region (cytoplasmic positivity is considered non specific and non informative).

100 ml of a water sample is drawn through a membrane filter (0.45 µm pore size) through the use of a vacuum pump.

This process will stop once the pressures of the water and sugar water on both sides of the membrane become equal (see osmosis).

This is a grip clip designed by somebody who said, all you need is some way to attach membrane structures to physical support beams.

Members of this order are characterized by the presence of a nictitating membrane over the eye, two dorsal fins, an anal fin, and five gill slits.

The material inside the microcapsule is referred to as the core, internal phase, or fill, whereas the wall is sometimes called a shell, coating, or membrane.

Instead, a positive hydrostatic pressure drives water and solutes across the filter membrane from the blood compartment to the filtrate compartment, from which it is drained.