Results 141 to 150 of about 22,026 (283)

Abiotic and prebiotic phosphorus chemistry

open access: yes, 2011
The chief obstacle to understand the metabolic origin of life or RNA-based life is to identify a plausible mechanism for overcoming the clutter wrought by abiotic chemistry. Probably trough simple abiotic and then prebiotic reactions we could arrive to simple pre-RNA molecules. Here we report a possible preibiotic synthesis for heterocyclic compounds,
openaire   +2 more sources

Nonenzymatic Carboxylate Phosphorylation in Water

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
The phosphorylation of carboxylic acids to acyl phosphates is a recurring reaction in the core of microbial metabolism, a set of processes thought to date back to the origins of life. This study shows that carboxylate phosphorylation occurs in water without enzymes or adenosine triphosphate (ATP), enabled by diamidophosphate and nitrite.
Weiqiang Chen   +3 more
wiley   +1 more source

Targeting the Tumor Microbiota in Cancer Therapy Basing on Nanomaterials

open access: yesExploration, EarlyView.
Intra‐tumoral microbiota, which is a potential component of the tumor microenvironment, has been emerging as a key participant and driving factor in cancer. This article reviews the latest progress in this field, including the microbial community within tumors and its pro‐cancer mechanisms, as well as the anti‐tumor strategies targeting intra‐tumoral ...
Yanan Niu   +4 more
wiley   +1 more source

Aliphatic Aldehydes in the Earth's Crust-Remains of Prebiotic Chemistry? [PDF]

open access: yesLife (Basel), 2022
Großmann Y   +3 more
europepmc   +1 more source

Facile Synthesis and Characterization of Pure Tochilinite‐like Materials from Nanoparticulate FeS

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 648, Issue 23, December 13, 2022., 2022
Abstract In this work, three different tochilinite‐like materials have been obtained by sophisticated synthetic methods that allow to control the distribution of iron ions. The purity of the samples was confirmed by powder X‐ray diffraction. From elemental analysis and Mössbauer spectroscopy data, detailed compositions could be determined: T1) Fe0.76S ...
Robert Bolney   +5 more
wiley   +1 more source

Berries: Health Effects via Modulation of the Gut Microbiota

open access: yesFood Frontiers, EarlyView.
ABSTRACT Berries are widely regarded as beneficial foods, rich in polyphenols, flavonoids, and other bioactive compounds that could positively influence human health. Although the gut microbiota plays a crucial role in metabolism and physiology of humans, the interaction between berries and human gut microbiota activity remains unclear.
Manjin Xu   +11 more
wiley   +1 more source

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