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单词 porphyrin
例句 porphyrin
At the centre of the porphyrin is an iron atom that provides the binding site for oxygen.  Myoglobin: turd of the century? 2013-04-19T06:29:00Z
Later work uncovered coils within the gelatinous coils — the helical trace of the polypeptide — and the atomic details of the flattened porphyrin molecule that myoglobin clasps to its bosom. Myoglobin: turd of the century? 2013-04-19T06:29:00Z
Dogs also secrete redder porphyrins in their tears, saliva and urine, as a metabolic breakdown product. Animal Doctor: Dog stands guard over every possible food source 2017-03-31T04:00:00Z
The compounds, called porphyrins, had previously been shown to be adept at absorbing light and using that energy to convert oxygen molecules in the air to a reactive form known as singlet oxygen. Crystalline nets harvest water from desert air, turn carbon dioxide into liquid fuel 2019-09-03T04:00:00Z
When these porphyrins held a metal atom like iron or copper, they had a ferocious affinity for oxygen. Icefish Study Adds Another Color to the Story of Blood 2019-05-06T04:00:00Z
The key to this advance is to firmly anchor the target molecule to a substrate — in this case, the authors fixed an organic molecule from the porphyrin family to a copper surface. Snapshots of vibrating molecules 2019-04-02T04:00:00Z
Sometimes the hemoglobin breakdown products, known as porphyrins, would turn purple when exposed to sunlight. Think Like a Doctor: The Builder’s Blisters Solved! 2016-12-09T05:00:00Z
Humans with porphyria overproduce porphyrins, which poison their skin cells, making them pale and extremely sensitive to light. These ‘vampire’ flatworms could help treat light sensitivity disorders in humans 2016-06-03T04:00:00Z
Where the defect occurs in the construction of these building blocks, known as porphyrins, determines which type of disorder patients develop. Think Like a Doctor: Limp as a Baby Solved 2015-12-04T05:00:00Z
“Once you have an iron in that porphyrin ring, it’s used throughout the biosphere,” Hardison said. Icefish Study Adds Another Color to the Story of Blood 2019-05-06T04:00:00Z
In theory, using a porphyrin COF as a catalyst would allow the material to conduct electrons from an electrode to porphyrin components throughout a thick film of the material. Designer material clears hurdle for turning carbon dioxide into fuel 2015-08-20T04:00:00Z
This causes an imbalance that prompts P. acnes to produce more porphyrins, a related molecule. Vitamin B12 screws with your skin bacteria and could cause acne 2015-06-24T04:00:00Z
In porphyria, a rare metabolic disorder, naturally occurring pigments called porphyrins build up and cause harm, and in polycythemia, there is an abnormal increase in red blood cell mass. A Few Reasons to Love Bleeding 2015-03-02T05:00:00Z
He’d been taking antipsychotic medications, which are known to stimulate the production of porphyrins. Well: Think Like a Doctor: Running in Circles Solved! 2014-04-04T19:42:42Z
Solutions of the porphyrins are all red, the di-basic ones being usually a bluish-red, and the simpler ones a brilliant red to deep brownish-red in color. The Chemistry of Plant Life
But the setup works only when the porphyrins are dissolved in an environmentally questionable organic solvent. Designer material clears hurdle for turning carbon dioxide into fuel 2015-08-20T04:00:00Z
And unfortunately porphyrins are linked to inflammation — a pretty important factor in the development of severe acne. Vitamin B12 screws with your skin bacteria and could cause acne 2015-06-24T04:00:00Z
When they applied an electric current, they found that the porphyrin COF did a better job than the molecular version of splitting CO2 into CO and oxygen. Designer material clears hurdle for turning carbon dioxide into fuel 2015-08-20T04:00:00Z
Before hematin was approved, porphyria attacks were treated with high doses of intravenous glucose, which works by temporarily shutting down porphyrin production. Well: Think Like a Doctor: Running in Circles Solved! 2014-04-04T19:42:42Z
The excess porphyrins injure tissues throughout the body, but especially in the nervous system. Well: Think Like a Doctor: Running in Circles Solved! 2014-04-04T19:42:42Z
One promising catalyst is a ring-shaped organic molecule with a cobalt atom at its core, called a porphyrin. Designer material clears hurdle for turning carbon dioxide into fuel 2015-08-20T04:00:00Z
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