Science & Environment

Water-stable catalyst could bring carbon-bond chemistry closer to use in living cells

Source: Phys.org - latest science and technology news stories · Published

Water-stable catalyst could bring carbon-bond chemistry closer to use in living cells
Source: Phys.org - latest science and technology news stories

Olefin metathesis is one of the most important reactions in organic chemistry for forming carbon–carbon bonds—for example, in the production of pharmaceuticals, plastics and complex natural products. However, previous ruthenium catalysts that enable this reaction have faced a maj

Olefin metathesis is one of the most important reactions in organic chemistry for forming carbon–carbon bonds—for example, in the production of pharmaceuticals, plastics and complex natural products. However, previous ruthenium catalysts that enable this reaction have faced a major challenge: They rapidly degrade in aqueous or biological environments, making their use in natural systems such as cells or blood extremely difficult.

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Without water, forests lose their ability to absorb CO₂
Science & Environment

Without water, forests lose their ability to absorb CO₂

To survive periods of drought, trees halt photosynthesis, a highly water-intensive process. For every molecule of CO₂ absorbed by a tree leaf, an average of around 400 water molecules are released. Entire forests may then end up emitting more CO₂ than they capture.

Phys.org - latest science and technology news stories ·

New device captures carbon dioxide by pumping it across a battery
Technology & AI

New device captures carbon dioxide by pumping it across a battery

Equipment to capture carbon dioxide from ambient air or smokestacks generally works through a sort of reversible filter. Air is passed through granules or a liquid that absorbs the CO 2 , then that CO 2 -loaded substance undergoes a process (usually heating) that causes it to let

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