Results 31 to 40 of about 26,979 (280)

The anti-staphylococcal activity (planktonic and biofilm) of Cnestis ferruginea is due to benzoquinone, the oxidation product of hydroquinone

Frontiers in Cellular and Infection Microbiology
IntroductionCnestis ferruginea is used frequently in African traditional medicine for treating infectious diseases. Previous bioassay-guided purification has identified hydroquinone as the major bio-active compound in the aforementioned plant ...
Sujogya Kumar Panda, Sujogya Kumar Panda, Michelle Reynders, Purity N. Kipanga, Walter Luyten   +4 more
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Benzoquinone-Induced Stereoselective Chloride Migration in (η³-Allyl)palladium Complexes. A Theoretical Mechanistic Study Complemented by Experimental Verification

, 2016
Benzoquinone-mediated Cl- migration reactions in (η3-allyl)palladium complexes were studied using density functional theory at the B3PW91 level. p-Benzoquinone coordinates to palladium in an η2 fashion, exerting considerable steric and electronic effects
Kálmán J. Szabó (2469466)
core   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Selective Electrocatalytic Oxidation of Phenol to Benzoquinone via Water Splitting Using a Nonprecious Metal‐Based Electrocatalyst

Advanced Energy & Sustainability Research
Chemicals derived from biomass lignin, with phenolic compounds, are particularly valuable in organic synthesis and catalytic conversion. The electrochemical conversion of biomass materials has gained significant attention in recent years as a sustainable
Asad Ali, Guo Huang, Jinliang Zhu, Aatto Laaksonen, Xiaoyan Ji   +4 more
doaj   +1 more source

Biosensing firefly luciferin synthesis in bacteria reveals a cysteine-dependent quinone detoxification route in Coleoptera

Scientific Reports, 2022
Luciferin biosynthetic origin and alternative biological functions during the evolution of beetles remain unknown. We have set up a bioluminescent sensing method for luciferin synthesis from cysteine and benzoquinone using E.
Daniel Rangel de Souza, Jaqueline Rodrigues Silva, Ariele Moreira, Vadim R. Viviani   +3 more
doaj   +1 more source

Metallic Porphyrazine Networks: Synthesis, as Well as Thermal and Optical Properties for Accelerating the Oxidation of Thiols to Their Disulfides

Metals, 2022
A condensation reaction of 2,3,5,6-tetraamino-1,4-benzoquinone 1 with 4,5-Dichloro-3,6-dihydroxy-phthalonitrile 2 produced p-benzoquinone [2,3-b:2,3-b]bis[(5,8-dihydroxybenzopyrazine)-6,7-dinitrile] 3.
Tarfah Al-Warhi, Matokah Abualnaja, Ola A. Abu Ali, Hamada H. Abdel-Razik, Sarah M. Albogami, Eman Fayad   +5 more
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

1,4‐Benzoquinones in African Millipeds [PDF]

Psyche: A Journal of Entomology, 1975
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Smolanoff, J, Demange, Jean-Marie, Meinwald, J, Eisner, Thomas   +3 more
openaire   +2 more sources

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

Advanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source