Results 81 to 90 of about 27,362 (303)

In Vivo Microplastic Detection With Photoacoustic Imaging

Advanced Science, EarlyView.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear, Olumide Ogunlade, Jayvian Mavi, Emily J. Deniszczyc, Daolong Chen, Heeva Javaheri, Paul Beard, Mark F. Lythgoe, Daniel J. Stuckey, P. Stephen Patrick   +9 more
wiley   +1 more source

Calcium isotope fractionation in calcite and aragonite

, 2005
Calcium isotope fractionation was measured on skeletal aragonite and calcite from different marine biota and on inorganic calcite. Precipitation temperatures ranged from 0 to 28°C.
Heuser, Alexander, Reitner, J., Böhm, Florian, Wörheide, G., Teichert, B. M. A., Dullo, Wolf-Christian, Eisenhauer, Anton, Gussone, Nikolaus, Dietzel, M.   +8 more
core   +1 more source

Antimony Isotope Fractionation during Adsorption on Iron (Oxyhydr)oxides

, 2023
The fate of antimony (Sb) is strongly affected by adsorption, yet Sb isotope fractionation and the associated mechanism have not been widely reported.
Xianjun Xie (1813453), Jiabei Luo (14002188), Yanxin Wang (738113), Jianbo Shi (448177)   +3 more
core   +1 more source

Climate Change Threatens Micronutrient Density of European Winter Wheat

Advanced Science, EarlyView.
Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao, Jennifer Michel, Eline Lorer, Markus Weinmann, Jacques Le Gouis, Claire Léon, Sibille Perrochon, David Alvarez, Vincent Leemans, Iñaki Balanzategui Guijarro, Jordi Moya Laraño, Sara Sánchez Moreno, Symanczik Sarah, Waibel Matthias, Hervé Vanderschuren, Cécile Thonar, Pierre Delaplace, Dominique Van Der Straeten   +17 more
wiley   +1 more source

Effects of Li Isotopic Fractionation during Ion Exchange on the Measurement Accuracy of Li Isotopes

Yankuang ceshi, 2019
BACKGROUND Lithium isotopes are widely used in various fields of earth and planetary science. Accurate determination of the lithium isotopic ratio is the premise of tracing various natural processes.
LIU Chun-yao, GOU Long-fei, DENG Li, JIN Zhang-dong   +3 more
doaj   +1 more source

Gut Mycobiota‐Associated Tryptophan Catabolites Protect Against Metabolic Dysfunction‐Associated Steatotic Liver Disease

Advanced Science, EarlyView.
ABSTRACT Accumulating evidence suggests that the intestinal microbiota participates in the progression of metabolic dysfunction‐associated steatotic liver disease (MASLD) through microbiota‐host interaction. However, the beneficial role of commensal mycobiota in MASLD progression remains poorly understood.
Shuping Qiao, Shuangya Fan, Juan Xu, Zhen Xu, Chen Peng, Junxing Qu, Ziqian Bing, Shizhen Zhou, Sunan Shen, Guifang Xu, Yue Zhao, Tingting Wang   +11 more
wiley   +1 more source

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

Advanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu, Meijuan Zhang, Lingchao Zhu, Haiyan Ke, Amancio de Souza, Qian Li, Daniel Castella, Nicolai Lehnert, Lubo Zhang, Arlin B. Blood   +9 more
wiley   +1 more source

Calcium isotope fractionation during microbially induced carbonate mineral precipitation [PDF]

We report the calcium isotope fractionation during the microbially-induced precipitation of calcium carbonate minerals in pure cultures of the marine sulfate-reducing bacterium Desulfovibrio bizertensis.
Bradbury, Harold J., Turchyn, Alexandra V., Lin, Chin Yik, Halloran, Kathryn H.   +3 more
core   +1 more source

Calcium isotope fractionation in alpine plants

, 2013
In order to develop Ca isotopes as a tracer for biogeochemical Ca cycling in terrestrial environments and for Ca utilisation in plants, stable calcium isotope ratios were measured in various species of alpine plants, including woody species, grasses and ...
Kiczka, M., Hindshaw, R. S., Kretzschmar, R., Wiederhold, J. G., Reynolds, B. C., Bourdon, B.   +5 more
core   +2 more sources

Isotope chemistry to trace carbon mineralization in construction materials

RILEM Technical Letters
This contribution presents an overview of the current literature and application potential of carbon isotope analysis in cementitious systems. Stable carbon isotope ratios (¹³C/¹²C) offer powerful insights for tracking carbonation processes, especially ...
Daniel Jansen, Thomas Matschei, Robert van Geldern, Johannes Barth, Ruben Snellings   +4 more
doaj   +1 more source