Results 191 to 200 of about 3,828,467 (366)

A novel multiparameter sensor for shake flask cultivations: Online biomass, dissolved oxygen, and fluorescence monitoring for comprehensive bioprocess characterization

open access: yesBiotechnology Progress, EarlyView.
Abstract Shake flasks are one of the most widely used cultivation vessels in biotechnological process development. To improve the process understanding, new technologies have been reported for online monitoring of different parameters like oxygen, pH, or biomass in the last couple of years.
Lara Strehl   +4 more
wiley   +1 more source

A multi-physics approach to probing plant responses: From calcium signaling to thigmonastic motion [PDF]

open access: yesarXiv
Plants respond to biotic and abiotic stresses through complex and dynamic mechanisms that integrate physical, chemical, and biological cues. Here, we present a multi-physics platform designed to systematically investigate these responses across scales.
arxiv  

Evaluation of effects‐based methods as monitoring tools for assessing ecological impacts of metals in aquatic ecosystems

open access: yesIntegrated Environmental Assessment and Management, Volume 19, Issue 1, Page 24-31, January 2023., 2023
Abstract Effects‐based methods (EBMs) are considered part of a more integrative strategy for regulating substances of concern under the European Union Water Framework Directive. In general, EBMs have been demonstrated as useful indicators of effects on biota, although links to population and community‐level effects are sometimes uncertain.
Kevin V. Brix   +5 more
wiley   +1 more source

Comparative Biosignatures [PDF]

open access: yesarXiv
The discovery of inhabited exoplanets hinges on identifying biosignature gases. JWST is revealing potential biosignatures in exoplanet atmospheres, though their presence is yet to provide strong evidence for life. The central challenge is attribution: how to confidently identify biogenic sources while ruling out, or deeming unlikely, abiotic ...
arxiv  

Ethnomedicinal uses, phytochemistry, pharmacological activities, and toxicology of the subfamily Gomphrenoideae (Amaranthaceae): A comprehensive review

open access: yesChemistry &Biodiversity, Accepted Article.
The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its promising ...
Dayanna Isabel Araque Gelves   +3 more
wiley   +1 more source

Purine Chemistry in the Early RNA World at the Origins of Life: From RNA and Nucleobases Lesions to Current Key Metabolic Routes

open access: yesChemBioChem, EarlyView.
In the nascent processes of the beginnings and evolution of life, nucleobases and especially purines, ribonucleos(t)ides and primitive RNAs have been continuously modified. A RNA‐peptide world and key metabolic pathways probably have emerged from the corresponding chemical modifications resulting from adenine deamination, purine alkylation and ...
Jean‐Luc Décout   +1 more
wiley   +1 more source

Charting the landscape of the environmental exposome

open access: yesiMeta, Volume 1, Issue 4, December 2022., 2022
We describe the biological and chemical components of the environmental exposomes in three major environmental matrices that are highly relevant to human and social‐economical health—air, soil, and water. We discuss how different exposome components can interact with each other. Finally, we propose a list of outstanding challenges to be tackled to push
Xin Wei   +6 more
wiley   +1 more source

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