Results 81 to 90 of about 7,064,890 (397)

Keratin/Hydrotalcites Hybrid Sponges as Promising Adsorbents for Cationic and Anionic Dyes

Frontiers in Bioengineering and Biotechnology, 2020
In this work, keratin sponges were prepared by freeze-drying method and tested for adsorption of Azure A and Methyl Orange dyes. The obtained materials showed a porosity of 99.92% and a mean pore size dimension of about 91 μm. The use of oxidized sucrose
Tamara Posati, Arthur Listwan, Giovanna Sotgiu, Armida Torreggiani, Roberto Zamboni, Annalisa Aluigi   +5 more
doaj   +1 more source

Electro-organic synthesis – a 21st century technique

Chemical Science, 2020
The severe limitations of fossil fuels and finite resources influence the scientific community to reconsider chemical synthesis and establish sustainable techniques.
D. Pollok, S. Waldvogel
semanticscholar   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Copper(II) complexes with fluorinated 5-aryl-2,2’-bipyridine-6(6’)-carboxylic acid tridentate ligands

Chimica Techno Acta
Three Cu(II) complexes containing (poly)fluorine ligands based on 5-aryl-2,2’-bipyridine-6(6’)-carboxylic acids have been synthesized for the first time. These complexes belong to either triclinic (P-1) or orthorhombic (Iba2) crystal systems. The packing
Timofey D. Moseev, Mikhail V. Varaksin, Alexey P. Krinochkin, Maria A. Valieva, Ekaterina A. Kudryashova, Yulia M. Sayfutdinova, Anastasiya V. Rybakova, Dmitry S. Kopchuk, Grigory V. Zyryanov, Youcef Ballou, Pavel A. Slepukhin, Vasiliy S. Gaviko, Valery N. Charushin, Oleg N. Chupakhin   +13 more
doaj   +1 more source

Material and methods [PDF]

, 2006
This chapter introduces the cases and the disciplinary approaches and methods. The BERAS study had a case study approach, and this report presents the interdisciplinary synthesis of the multidisciplinary study.
Granstedt, Artur, Kahiluoto, Helena, Kakriainen, Salla, Sumelius, John   +3 more
core  

Lead halide perovskites for photocatalytic organic synthesis

Nature Communications, 2019
Nature is capable of storing solar energy in chemical bonds via photosynthesis through a series of C–C, C–O and C–N bond-forming reactions starting from CO2 and light. Direct capture of solar energy for organic synthesis is a promising approach. Lead (Pb)
Xiaolin Zhu, Yixiong Lin, Jovan San Martin, Yue Sun, Dian Zhu, Yong Yan   +5 more
semanticscholar   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Entry to 2-aminoprolines via electrochemical decarboxylative amidation of N‑acetylamino malonic acid monoesters

Beilstein Journal of Organic Chemistry
The electrochemical synthesis of 2-aminoprolines based on anodic decarboxylation–intramolecular amidation of readily available N-acetylamino malonic acid monoesters is reported. The decarboxylative amidation under Hofer–Moest reaction conditions proceeds
Olesja Koleda, Janis Sadauskis, Darja Antonenko, Edvards Janis Treijs, Raivis Davis Steberis, Edgars Suna   +5 more
doaj   +1 more source

Synthesis of fluorinated organic compounds using oxygen difluoride [PDF]

, 1971
Oxygen difluoride synthesis is a much simpler, higher-yield procedure than reactions originally followed to synthesize various fluorinated organic compounds.
Toy, M. S.
core   +1 more source