Results 61 to 70 of about 1,375 (174)

Navigating infection by pathogenic spirochetes: The host‐bacteria interface at the atomic level

Protein Science, Volume 34, Issue 7, July 2025.
Abstract Pathogenic spirochetes bind and interact with various host structures and molecules throughout the course of infection. By utilizing their outer surface molecules, spirochetes can effectively modulate their dissemination, interact with immune system regulators, and select specific destination niches within the host.
Libor Hejduk, Norbert Müller, Adriana Rathner, Ján Štěrba, Shang‐Cheng Hung, Chia‐Lin Chyan, Ryan O. M. Rego, Martin Strnad   +7 more
wiley   +1 more source

Biocatalytic degradation of pharmaceuticals, personal care products, industrial chemicals, steroid hormones and pesticides in a membrane distillation-enzymatic bioreactor [PDF]

, 2018
© 2017 Elsevier Ltd Laccase-catalyzed degradation of a broad spectrum of trace organic contaminants (TrOCs) by a membrane distillation (MD)-enzymatic membrane bioreactor (EMBR) was investigated. The MD component effectively retained TrOCs (94–99%) in the
Asif, MB, Hai, FI, Kang, J, Leusch, FDL, Nghiem, LD, Price, WE, van de Merwe, JP   +6 more
core   +2 more sources

Hydrogen Radical Detection in Catalytic Hydrogenation Reactions: Background C‐H Activation in Solvents

ChemCatChem, Volume 17, Issue 9, May 8, 2025.
The study demonstrates that under mild hydrogenation conditions, C‐H/D exchange occurs in common solvents toluene and xylene, especially at benzylic positions. Studies indicate that carbon‐centered radicals bind strongly to Pd surfaces, suggesting their possible role in catalytic reactions. Spin‐trapping EPR confirms H‐radical adducts are present under
Hannah Rogers, Timothy J. Woodman, David J. Willock, Andrea Folli, Simon J. Freakley   +4 more
wiley   +1 more source

Kinetics and mechanistic studies for the oxidation of N-Benzylhydroxylamine by a CoIII-bound bridging superoxo complex in perchloric acid medium [PDF]

, 2021
In aqueous perchloric acid medium (pH = 0.522 – 1.3) , N–benzylhydroxylamine ( two electron reductant)  reduces the  one electron oxidant,  superoxo ligand in [(dien)(en)CoIII(O2)CoIII(en)(dien)](ClO4)5 (1) to the corresponding hydroperoxo complex, [(en)(
GAIN, SEKHAR
core   +1 more source

Deterioration of Polypropylene Random Copolymer Formulations Based on Phenolic Antioxidants and Non‐Phenolic Stabilizers at Elevated Temperatures in Hot Air

Journal of Applied Polymer Science, Volume 142, Issue 8, February 20, 2025.
ABSTRACT This article deals with the hot air aging behavior of polypropylene random copolymers additivated with phenolic antioxidants, hindered amine light stabilizers (HALS) and thiosynergists in a wide temperature range from 65°C to 135°C. Various stabilizer mixtures and their interactions were evaluated. To avoid diffusion‐limited oxidation effects,
Lukas Peham, Gernot M. Wallner, David Nitsche   +2 more
wiley   +1 more source

Aqueous Photocatalytic Glycerol Oxidation to Formic Acid Coupled to H2O2 Production with an Anthraquinone Dye

Advanced Sustainable Systems, Volume 9, Issue 1, January 20, 2025.
Light‐driven conversion of glycerol to formic acid coupled to reduction of oxygen to hydrogen peroxide is developed with an anthraquinone disulfonate photocatalyst, in water and exploiting blue light. A mechanism analysis reveals a photochemical hydrogen atom transfer as the key primary step, based on EPR, transient absorption spectroscopy, and TD‐DFT ...
Elena Tacchi, Greta Rossi, Mirco Natali, Luka Ðorđević, Andrea Sartorel   +4 more
wiley   +1 more source

Spirocyclic Pyrrolidinyl Nitroxides with Exo‐Methylene Substituents

ChemPlusChem, Volume 89, Issue 12, December 2024.
Stable spins: Nitroxide radicals are useful spectroscopic probes in biological settings, but suffer from limitations in stability and electron spin relaxation times. The synthesis of a novel spirocyclic nitroxide scaffold is described, and the new nitroxides are thoroughly evaluated by X‐ray crystallography, electrochemistry and electron paramagnetic ...
Mateusz P. Sowiński, Anna‐Luisa Warnke, Bjarte A. Lund, Susann Skagseth, David B. Cordes, Janet E. Lovett, Marius M. Haugland   +6 more
wiley   +1 more source

Nitroxide‐Derived N‐Oxide Phenazines for Noncovalent Spin‐Labeling of DNA [PDF]

, 2020
Post-print (lokagerð höfundar)Two o‐benzoquinone derivatives of isoindoline were synthesized for use as building blocks to incorporate isoindoline nitroxides into different compounds and materials.
Juliusson, Haraldur Y., Sigurdsson, Snorri   +1 more
core   +1 more source

Recyclable Organic Radical Electrodes for Metal‐Free Batteries

ChemSusChem, Volume 17, Issue 20, October 21, 2024.
A metal‐free organic battery was recycled to demonstrate the prospect of circular energy storage. Abstract Organic batteries are one of the possible routes for transitioning to sustainable energy storage solutions. However, the recycling of organic batteries, which is a key step toward circularity, is not easily achieved.
Ratul Mitra Thakur, Ting Ma, Grant Shamblin, Suyash S. Oka, Suvesh M. Lalwani, Alexandra D. Easley, Jodie L. Lutkenhaus   +6 more
wiley   +1 more source

Electrochemical Aminoxyl-Mediated α-Cyanation of Secondary Piperidines for Pharmaceutical Building Block Diversification [PDF]

, 2018
Secondary piperidines are ideal pharmaceutical building blocks owing to the prevalence of piperidines in commercial drugs. Here, we report an electrochemical method for cyanation of the heterocycle adjacent to nitrogen without requiring protection or ...
Djuric, Stevan W., Goes, Shannon L., Koolman, Hannes F., Lennox, Alastair J. J., Stahl, Shannon S., Webster, Matthew P.   +5 more
core   +5 more sources