Sentences with phrase «dissolved organic molecules»

The researchers carbon - dated dissolved organic molecules in water from the vents.

It is also much longer than the average lifetime of dissolved organic molecules in the ocean, which generally circulate for thousands of years, not millions.

Not exact matches

To try to develop a more sensitive probe for isolating individual peptides — short strands of amino acids — from a pool of similar molecules, a team led by chemist Clark Still of Columbia University 4 years ago synthesized small organic compounds that selectively fish out peptides dissolved in chloroform.

They analyzed the samples for colored dissolved organic matter, which contains light - absorbing molecules from the breakdown of plant polymers such as lignin.

In a paper released in the November 14, 2016 issue of the journal Nature Geoscience, Repeta and colleagues at the University of Hawaii found that much of the ocean's dissolved organic matter is made up of novel polysaccharides — long chains of sugar molecules created by photosynthetic bacteria in the upper ocean.

The new study determined that much of the ocean's dissolved organic matter is made up of novel polysaccharides — long chains of sugar molecules created by photosynthetic bacteria in the upper ocean.

When phytoplankton use carbon dioxide to make new cells, a substantial portion of that cellular material is released into the sea as a buffet of edible molecules collectively called «dissolved organic carbon.»

In ancient bone, DNA is nestled among diverse organic and inorganic molecules, including collagen and a mineral form of calcium called hydroxyapatite, which must be dissolved away to extract sequenceable genetic material.

Indeed photosynthesis produces a large reservoir of dissolved and particulate organic molecules that may persist for decades, centuries, and millennia.

Harvard scientists have developed a battery that stores its energy in organic molecules dissolved in neutral pH water.