Sentences with phrase «calcium carbonate crystals»

Though all three are made of calcium carbonate crystals, the hard materials include clumps of soft biological matter that make them much stronger.

The presence of that protein makes calcium carbonate crystals form in a nanostructured pattern, rather than smooth and even crystal, study coauthor Marc McKee, a biomineralization researcher at McGill University in Montreal, and colleagues found.

Proteins trapped in calcium carbonate crystals create a compressive force — or strain — within the crystal structure.

Corals are built by polyps — tiny anemone - like creatures that produce calcium carbonate crystals, stacking them in intricate, interconnected branches faster than the sea can erode their skeletons.

As the bacteria went to work metabolizing the urea, calcium carbonate crystals began to form around the bacteria, filling in the gaps between each grain of sand.

The ammonia reacts with water to form ammonium hydroxide, which makes any nearby calcium precipitate out as calcium carbonate crystals, or limestone.

They found calcium carbonate crystals inside the mobile, amorphous blood cells of the Eastern oyster, Crassostrea virginica.

When unfiltered water flowed into the channel, millimeter - long calcium carbonate crystals formed within hours.

In a study led by the Department of Energy's Pacific Northwest National Laboratory, researchers used a powerful microscope that allows them to see the birth of crystals in real time, giving them a peek at how different calcium carbonate crystals form, they report September 5 in Science.

«Primary mesenchyme cells (PMCs) inside a sea urchin embryo deposits amorphous CaCO3 within the matrix of spicule proteins where these bricks are shaped into layers of calcium carbonate crystals,» notes Dr. Jain.

So why do these species produce a calcium carbonate crystal crust and why are some crusts calcite and others vaterite?

The calcium carbonate crystals would have piled up in uneven bands along the sea bottom.

In the vestibular system, Otop1 is necessary for the formation and function of structures called otoconia, which are calcium carbonate crystals that sense gravity and acceleration.

They are assumed to cause the observed structural alterations in the calcium carbonate crystals.

These procedures can help diagnose the presence of bacterial infection (which often accompanies bladder stones or sludge) and determine the composition of suspected uroliths or sludge (rabbits usually form calcium carbonate crystals, but they may also form calcium oxalate, ammonium phosphate, or monohydrate crystals).

Researchers from Lawrence Berkeley National Laboratory, the University of California Berkeley, and Pacific Northwest National Laboratory have used a high - powered electron microscope to capture the birth of calcium carbonate crystals.