Results 61 to 70 of about 1,695 (156)

Lack of ¹³C-label incorporation suggests low turnover rates of thaumarchaeal intact polar tetraether lipids in sediments from the Iceland shelf [PDF]

Biogeosciences, 2014
Thaumarchaeota are amongst the most abundant microorganisms in aquatic environments, however, their metabolism in marine sediments is still debated. Labeling studies in marine sediments have previously been undertaken, but focused on complex organic ...
S. K. Lengger, Y. A. Lipsewers, H. de Haas, J. S. Sinninghe Damsté, S. Schouten   +4 more
doaj   +1 more source

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

Advanced Healthcare Materials, Volume 15, Issue 15, 17 April 2026.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre, Margherita Bernardeschi, Matteo Battaglini, Gianni Ciofani   +3 more
wiley   +1 more source

Tracing tetraether lipids from source to sink in the Rhône River system (NW Mediterranean)

Frontiers in Earth Science, 2015
In this study, we investigated soils and river suspended particulate matter (SPM) collected in the Rhône and its tributary basins as well as marine surface sediments taken in the Rhône prodelta (Gulf of Lions, NW Mediterranean).
Jung-Hyun eKim, Jung-Hyun eKim, Wolfgang eLudwig, Roselyne eBuscail, Denise eDorhout, Denise eDorhout, Jaap S. Sinninghe Damste, Jaap S. Sinninghe Damste   +7 more
doaj   +1 more source

A New Era for Using Natural Pigments: The Case of the C50 Carotenoid Called Bacterioruberin

Biotechnology and Applied Biochemistry, Volume 73, Issue 2, Page 913-926, April 2026.
ABSTRACT Haloarchaea are extremophilic microorganisms belonging to the Archaea domain that require high salt concentrations to live, thus inhabiting ecosystems like salty ponds, salty marshes, or extremely salty lagoons. They are more abundant and widely distributed worldwide than initially expected.
Micaela Giani, Elena Valdés, José María Miralles‐Robledillo, Guillermo Martínez, Carmen Pire, Rosa María Martínez‐Espinosa   +5 more
wiley   +1 more source

New Insights Into the Polar Lipid Composition of Extremely Halo(alkali)philic Euryarchaea From Hypersaline Lakes

Frontiers in Microbiology, 2019
We analyzed the polar membrane lipids of 13 strains of halo(alkali)philic euryarchaea from hypersaline lakes. Nine belong to the class Halobacteria, representing two functional groups: aerobic polysaccharide utilizers and sulfur-respiring anaerobes.
Nicole J. Bale, Dimitry Y. Sorokin, Dimitry Y. Sorokin, Ellen C. Hopmans, Michel Koenen, W. Irene C. Rijpstra, Laura Villanueva, Hans Wienk, Jaap S. Sinninghe Damsté, Jaap S. Sinninghe Damsté   +9 more
doaj   +1 more source

Laurdan: Clarifying Photophysics and Advancing the Characterization of Extracellular Vesicles

ChemPhysChem, Volume 27, Issue 5, 13 March 2026.
Biophysical properties of extracellular vesicles (EVs) reflect their composition and membrane organization. We introduce a novel approach using time‐resolved emission spectra (TRES) phasor analysis of the polarity‐sensitive probe Laurdan to characterize membranes with complex compositions.
Petra Riegerová, Mariana Amaro, Peter Kapusta, Antonín Vlček, Martin Smolko, Karel Souček, Vendula Pospíchalová, Martin Hof, Šárka Pokorná   +8 more
wiley   +1 more source

Origins of archaeal tetraether lipids in sediments: Insights from radiocarbon analysis [PDF]

Geochimica et Cosmochimica Acta, 2008
Abstract Understanding the supply and preservation of glycerol dibiphytanyl glycerol tetraethers (GDGTs) in marine sediments helps inform their use in paleoceanography. Compound-specific radiocarbon measurements of sedimentary alkenones from multiple environments have been used to gain insight into processes that affect U 37 K ′
Shah Walter, Sunita, Mollenhauer, Gesine, Ohkouchi, Naohiko, Eglinton, Timothy I., Pearson, Ann   +4 more
openaire   +3 more sources

Pulsed Electric Fields for Emerging Single‐Cell Bioprocessing in Food Applications: Electropermeabilization Mechanisms and Design Principles

Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 2, March 2026.
ABSTRACT This review evaluates pulsed electric fields (PEF) as an emerging platform for single‐cell bioprocessing in food applications. Connections are drawn between key mechanisms in electropermeabilization and applications, and a practical PEF process design framework is provided.
Byron Perez, Julia Baumgartner, Daniel Macken, Iris Haberkorn, Alexander Mathys   +4 more
wiley   +1 more source

Temperature Sensitivity of Leaf Wax n‐Alkane Carbon Isotopes: Mechanisms and Implications for Terrestrial Paleoclimates

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract While climate signals encapsulated in the 13C content of C3 plants' leaf wax n‐alkanes are largely tied to precipitation, they may also be sensitive to plant physiological responses to temperature. In this study, statistical analyses on a global data set of modern plants reveal a correlation between the 13C discrimination for leaf waxes ...
Hao Xie, Max K. Lloyd, Allison A. Baczynski, Aaron F. Diefendorf, Katherine H. Freeman   +4 more
wiley   +1 more source

Seasonal Changes in Marine Archaeal Tetraether Lipid Export Depth Linked to Net Primary Productivity

Paleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract Marine ammonia oxidizing archaea (AOA) produce isoprenoid glycerol dibiphytanyl glycerol tetraethers (GDGTs) which form the basis of seawater temperature proxy TEX86. Although most studies use TEX86 for sea surface temperature (SST) reconstructions, maximum GDGT production occurs at and below the nitracline. Moreover, sedimentary GDGT‐2/GDGT‐3
Addison Rice, Eunmi Park, Gesine Mollenhauer, Daisy Bouwmans, Anouk van Boxtel, Gert J. de Lange, Ryan Paul, Francesca Sangiorgi, Ryan Smulders, Jan‐Berend Stuut, Martin Ziegler, Appy Sluijs, Francien Peterse   +12 more
wiley   +1 more source