TEMPO-Oxidized Cellulose Nanofibril Films Incorporating Graphene Oxide Nanofillers
Polymers, 2023 To design a new system of novel TEMPO-oxidized cellulose nanofibrils (TOCNs)/graphene oxide (GO) composite, 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation was utilized. For the better dispersion of GO into the matrix of nanofibrillated cellulose (NFC), a unique process combining high-intensity homogenization and ultrasonication
Yoojin Kim +4 more
openaire +3 more sources
Pro-oxidative effects of Tempo in systems containing oxidants [PDF]
Redox Report, 2004 2,2,6,6-Tetramethylpiperidine-1-oxyl (Tempo), previously reported by us to augment oxidation of glutathione induced by peroxynitrite (Glebska J, Skolimowski J, Kudzin Z, Gwozdzinski K, Grzelak A, Bartosz G. Pro-oxidative activity of nitroxides in their reactions with glutathione. Free Radic Biol Med 2003; 35: 310-316) was found to increase oxidation of
Aneta, Balcerczyk +3 more
openaire +2 more sources
Reactivity of TEMPO anion as a nucleophile and its applications for selective transformations of haloalkanes or acyl halides to aldehydes [PDF]
, 2004 Sodium 2,2,6,6-tetramethylpiperidine-N-oxide (TEMPO−Na+), generated by reduction of TEMPO· with sodium naphthalenide in THF, reacted with alkyl halides or acyl halides to produce O-alkylated or acylated TEMPOs, which were in turn oxidized with ...
Allen +35 more
core +1 more source
Effect of building block transformation in covalent triazine‐based frameworks for enhanced CO2 uptake and metal‐free heterogeneous catalysis [PDF]
, 2020 Invited for the cover of this issue is the group of Pascal Van Der Voort at the University of Ghent and colleagues at Technische Universitat Berlin. The image depicts the covalent triazine frameworks reported in the manuscript for the sorption of CO2 and
Jena, Himanshu +5 more
core +2 more sources
Pyrimido[1,2-a]-purin-10(3H)-one, M(1)G, is less prone to artifact than base oxidation [PDF]
, 2005 Pyrimido[1,2-a]-purin-10(3H)-one (M(1)G) is a secondary DNA damage product arising from primary reactive oxygen species (ROS) damage to membrane lipids or deoxyribose.
Jeong, Yo-Chan +3 more
core +3 more sources
Mechanically induced oxidation of alcohols to aldehydes and ketones in ambient air: Revisiting TEMPO-assisted oxidations [PDF]
, 2017 The present work addresses the development of an eco-friendly and cost-efficient protocol for the oxidation of primary and secondary alcohols to the corresponding aldehydes and ketones by mechanical processing under air. Ball milling was shown to promote
Colacino, Evelina +4 more
core +3 more sources
Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose [PDF]
, 2017 Recently, surface functionality and thermal property of the green nanomaterials have received wide attention in numerous applications. In this study, microcrystalline cellulose (MCC) was used to prepare the nanocrystalline celluloses (NCCs) using acid ...
Abdullah, Luqman Chuah +6 more
core +2 more sources
Timing and tempo of the Great Oxidation Event [PDF]
Proceedings of the National Academy of Sciences, 2017 Significance We present U-Pb ages for the extensive Ongeluk large igneous province, a large-scale magmatic event that took place near the equator in the Paleoproterozoic Transvaal basin of southern Africa at ca. 2,426 Ma. This magmatism also dates the oldest Paleoproterozoic global glaciation and the onset of significant ...
Ashley P. Gumsley +6 more
openaire +5 more sources
Processes, 2020 Cellulose nanocrystals (CNCs) are attractive for use in polymer composites, biomedical applications, and barrier packaging. In all of these applications they are mixed with other components and compatibility is a major design consideration, as CNCs ...
Manali Banerjee +3 more
semanticscholar +1 more source
Selective TEMPO‐Oxidation of Alcohols to Aldehydes in Alternative Organic Solvents
, 2020 The TEMPO-catalyzed oxidation of alcohols to aldehydes has emerged to one of the most widely applied methodologies for such transformations. Advantages are the utilization of sodium hypochlorite, a component of household bleach, as an oxidation agent and
Alessa Hinzmann +5 more
semanticscholar +1 more source