Results 51 to 60 of about 9,785 (280)

ETE Barueri - SP Sewage Sludge Elementary Sulfur and Heavy Metals Correlation [PDF]

Geologia USP. Série Científica, 2010
The presence of sulfur in sewage sludge from the Barueri Sewage Treatment Plant (STP) seems to be related tothe presence of surfactants and feces, both present in domestic wastewater. The results obtained demonstrate a possiblecorrelation with combustion
Joel Barbujiani Sígolo, Cyntia Helena Ravena Pinheiro   +1 more
doaj  

Assessing the utility of sulfur isotope values for understanding mercury concentrations in water and biota from high Arctic lakes

Arctic Science, 2019
Methylmercury (MeHg) biomagnifies through aquatic food webs resulting in elevated concentrations in fish globally. Stable carbon and nitrogen isotopes are frequently used to determine dietary sources of MeHg and to model its biomagnification.
Gretchen L. Lescord, Meredith G. Clayden, Karen A. Kidd, Jane L. Kirk, Xiaowa Wang, Nelson J. O’Driscoll, Derek C.G. Muir   +6 more
doaj   +1 more source

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

Advanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa, Jingjun Mo, Xiaotong Diao, Feng Xie, Tingting Wang, Haowen Zhao, Dalei Wu, Rolf Müller, Chengzhang Fu   +8 more
wiley   +1 more source

Biomimetic Polymerization of Tellurocysteine: Breaking the Natural Amino Acid Radioprotection Limitation

Advanced Science, EarlyView.
Inspired by natural amino acid polymer‐melanin systems, this study strategically incorporated tellurocysteine to develop advanced radiation‐shielding materials. This approach transformed the primary interaction mechanism between melanin‐based materials and incident photons from Compton scattering to the photoelectric effect. Tellurocysteine‐polymerized
Wei Chen, Hanjie Zhu, Yue Zhang, Yuqing Qiao, Ruotong Deng, Huaping Xu, Wei Cao   +6 more
wiley   +1 more source

Chelator‐Free Radiometal Labeling Inside Engineered Affibodies

Angewandte Chemie, EarlyView.
Affibodies are compact and robust three‑helix binders used in imaging and therapy. Engineering a triple‑cysteine motif into their core enables chelator‑free binding of important radiometals, like Bi(III), Pb(II), In(III), and Ga(III) with rapid uptake and exceptional stability.
Lani J. Davies, Upamali Somathilake, Santhanalaxmi Kumaresan, Frank Bruchertseifer, Alfred Morgenstern, Sarah Spreckelmeyer, Christoph Nitsche   +6 more
wiley   +2 more sources

Energetic convergence drives metabolic adaptation in lirima chilean high-altitude hydrothermal system

Communications Earth & Environment
High-altitude hydrothermal systems provide laboratories for understanding microbial adaptation to extreme conditions. Here we investigated thermodynamic controls on metabolic transitions in Lirima hydrothermal system (Chile, 4000 meters above sea level ...
Pablo Paquis, Coral Pardo-Esté, Joseline Tapia, July Z. Florez, Vilma Pérez, Verónica Molina, Marcela Cornejo-D’Ottone, Pablo A. Pérez, Chris Harrod, Wade H. Jeffrey, Sergio Calabrese, Paola Quatrini, Franco Tassi, Martha B. Hengst   +13 more
doaj   +1 more source

Isotopic Analysis (δ¹³C, δ¹⁵N, and δ³⁴S) of Modern Terrestrial, Marine, and Freshwater Ecosystems in Greece: Filling the Knowledge Gap for Better Understanding of Sulfur Isotope Imprints—Providing Insights for the Paleo Diet, Paleomobility, and Paleoecology Reconstructions

Applied Sciences
This study provides a comprehensive database of sulfur isotope values from Greece, including samples of C3 and C4 plants and terrestrial and aquatic animal bones.
Petros Karalis, Elissavet Dotsika, Anastasia-Electra Poutouki, Giorgos Diamantopoulos, Liana Gkelou, Dafni Kyropoulou, Spyridon Bellas, Platon N. Gamaletsos   +7 more
doaj   +1 more source

Isotopic Evidence for Multiple Recycled Sulfur Reservoirs in the Mangaia Mantle Plume

Geochemistry, Geophysics, Geosystems, 2020
Mangaia, an ocean island in the Cook‐Austral volcanic chain, is the type locality for the HIMU mantle reservoir and has also been shown to exhibit evidence for recycled sulfur with anomalous δ34S and Δ33S that has been attributed an Archean origin.
J. W. Dottin III, J. Labidi, M. G. Jackson, J. Woodhead, J. Farquhar   +4 more
doaj   +1 more source

Enhancing Biogenic Formic Acid Production in the Modified OxFA Process by Acetonitrile Addition

Advanced Science, EarlyView.
In this study, the beneficial effect of using acetonitrile as a co‐solvent in the modified OxFA process is shown, outperforming methanol, demonstrating improved reaction kinetics combined with high selectivity for the HPA‐2 (H5PV2Mo10O40) catalyzed oxidation of xylose to FA.
Jan‐Dominik H. Krueger, Pegah Saedi, Maximilian J. Poller, Alberto Collauto, Jason P. Hallett, David Robinson, Maxie M. Roessler, Jakob Albert   +7 more
wiley   +1 more source

A Non‐Covalent [4Fe–4S]/[2Fe] Interface in HydF Guides [FeFe]‐Hydrogenase Maturation

Angewandte Chemie, EarlyView.
Bridged or not? 57Fe NRVS reveals a non‐covalent, electronically coupled interaction between the HydF [4Fe–4S] cluster and the [2Fe] precursor. Boltz‐2 structure predictions suggest that the cubane organizes lipoate‐dependent Hmet chemistry, positioning intermediates for assembly of the CH2–NH–CH2 bridge during H‐cluster biosynthesis.
Giorgio Caserta, Princess R. Cabotaje, Armel T. Waffo, Deepak Prajapat, Ilya Sergueev, Stefan Frielingsdorf, Gustav Berggren   +6 more
wiley   +2 more sources