Results tagged “biochemistry”

Oldest Known Redox Gradient Discovered

By analyzing iron isotopes against the uranium content in the jasper rock from the ancient ocean of the Barberton Greenstone Belt in South Africa, scientists have found a defined vertical redox gradient, called a redoxcline, showing a change in the level of oxygenation from the deeper part of the ocean leading to the shallower portion.

Studying Metabolism in Mixed Cultures

Studying Carbon-13 (13C) metabolism in a microbial community can be a time-consuming and tricky prospect. This is because scientists often have to separate a single species out of the mix for study.

In 2009, scientists from Woods Hole Oceanographic Institution embarked on a NASA-funded mission to the Mid-Cayman Rise in the Caribbean, in search of a type of deep-sea hot-spring or hydrothermal vent that they believed held clues to the search for life on other planets.

Making Unnatural Amino Acids

Chemists at The Scripps Research Institute (TSRI) have devised a greatly improved technique for making amino acids not found in nature.

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