Results 121 to 130 of about 343,291 (192)

Apuntes de cinética y catálisis [PDF]

, 2017
1 archivo PDF (52 páginas)"La cinética química es un tema o área de la fisicoquímica, la cual es una rama de la química. La Fisicoquímica moderna tiene firmes bases en la Física pura.
Fernández Sánchez, Lilia, Rodríguez González, Gustavo   +1 more
core  

A Talc- and Kaolin-Enriched Acetylated Starch Biocoating: An Alternative to Single-Use Plastic for the Food Industry

Polysaccharides
The increasing production of plastics, driven by modern societal development, has resulted in a significant rise in plastic waste, which poses serious environmental concerns due to its lengthy degradation times.
Antonio Veloso-Fernández, José Manuel Laza, Leyre Pérez-Álvarez, José Luis Vilas-Vilela   +3 more
doaj   +1 more source

Vibrational assignments of two polymorphic forms of metaxolone by using DFT calculations and the SQM methodology [PDF]

, 2018
A theoretical study has been performed on the musclerelaxant 5-[(3, 5-dimethylphenoxy)methyl]-1,3-oxazolidin-2-one, of generic name metaxolone (MTX), by using the hybridB3LYP/6-31G calculations in the gas phase and theexperimental available infrared and ...
Brandan, Silvia Antonia, Iramain, Maximiliano Alberto, Ledesma, Ana Estela, Márquez, María J.   +3 more
core  

Pd/Cu Single Atom Alloys for Selective Alcohol Dehydrogenation: From Single Crystalline to Nanostructured Model Catalysts

Angewandte Chemie, Volume 138, Issue 5, 28 January 2026.
Model Pd/Cu single atom alloy catalysts were prepared in nanostructured form and structurally characterized. They show an outstanding performance in dehydrogenating butanol to butanal with 100% selectivity – the property that cannot be reproduced over simplified single crystalline Pd/Cu(111) counterparts.
Philipp A. Fredersdorff, Jan Smyczek, Carsten Schröder, Paul Fröhlich, Paul Kohlmorgen, Stephan Appelfeller, Konstantin Neyman, Swetlana Schauermann   +7 more
wiley   +2 more sources

Sulfur‐Induced Lattice Modulation and Charge‐Transport Enhancement in MnO2 Nanowires for Hybrid Energy Storage

Energy Storage, Volume 8, Issue 1, February 2026.
ABSTRACT In this study, sulfur‐modified MnO2 nanowires (MnO2‐S) were synthesized via a two‐step hydrothermal and solid‐state process and evaluated as battery‐type electrodes for hybrid supercapacitors. Transmission electron microscopy (TEM) and high‐resolution TEM confirmed morphological integrity, while structural changes induced by sulfur inclusion ...
Jhonatam Pinheiro Mendonça, Raíssa Soares Penha, Scarllett Lalesca Lima, Sonia Letichevsky, Liying Liu, Carlos Castro, Marco Aurélio Suller Garcia   +6 more
wiley   +1 more source

Integrated green extraction of phenolic compounds and fermentable sugars from grapefruit peel using ultrasound and enzymatic hydrolysis

Journal of the Science of Food and Agriculture, Volume 106, Issue 3, Page 1839-1851, February 2026.
Abstract BACKGROUND Valorizing sugar‐rich food waste in biorefineries offers a sustainable route to bio‐based products. Grapefruit peel (GP), representing about 50% of the fruit's weight, is rich in sugars (soluble and insoluble) and polyphenols such as flavonoids.
María del Prado García‐Aparicio, María Castro‐Puyana, María Luisa Marina   +2 more
wiley   +1 more source

Enzymes of glycolysis and the pentose phosphate pathway as targets of oxidants: Role of redox reactions on the carbohydrate catabolism

Redox Biochemistry and Chemistry
Redox reactions can modulate metabolic and signaling pathways with consequences on cellular adaptation to different stimuli. The abundance and structural features of some metabolic enzymes make these targets of oxidants, including one- and two-electron ...
Eduardo Fuentes-Lemus, Karen Usgame, Angélica Fierro, Camilo López-Alarcón   +3 more
doaj   +1 more source

Bio‐Based Citrate Plasticizers as Nucleating Agents for PLA Fibers: Unlocking Antioxidant and Antimicrobial Potential

Macromolecular Chemistry and Physics, Volume 227, Issue 3, 16 February 2026.
Uniform and bead‐free PLA fibers containing functional biobased plasticizers for potential application in food packaging are prepared by force‐spinning technique. ACETEM and CITREM commonly used as food additives are employed within the fibers to provide such functional properties to the fiber mats.
Ignacio Mena‐Prado, Marta Fernández‐García, Daniel López, Sara Limbo, Manuela Rollini, Daniele Maria Martins, Adolfo del Campo, Alexandra Muñoz Bonilla   +7 more
wiley   +1 more source

Theoretical Study of Electrostatic Embedding and Properties of a Novel Quinolinone‐Chalcone Crystal and a Comparative Analysis with Dihydroquinolinone Analogs

ChemistryOpen, Volume 15, Issue 2, February 2026.
This graphical abstract highlights the molecular framework, electronic features, and nonlinear optical response of the quinolinone–chalcone crystal QCCP. The left panel displays the full molecular structure and the electrostatic environment introduced by iterative charge embedding, illustrating the crystal‐packing–induced dipole enhancement observed in
Clodoaldo Valverde, Nathália M. Pires, Antônio N. Borges, Daphne C. Fernandes, Vitor S. Duarte, Giulio D. C. D’Oliveira, Jean M. F. Custodio, Caridad N. Pérez, Francisco A. P. Osório, Hamilton B. Napolitano   +9 more
wiley   +1 more source

Photocatalyzed Ring Expansion of α‐Ketosulfonylaziridines: Ready Access to δ‐Sultams

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
A novel radical–polar crossover (RPC) photoredox‐catalyzed reaction for the synthesis of δ‐sultams from N‐sulfonyl α‐ketoaziridines through a controlled ring opening–expansion process is presented. This method allows the easy access to sultams with an unprecedented substitution pattern in up to 85% yield and 2:1 d.r., and highlights the potential of ...
Marco M. Mastandrea, Stefania Perulli, Vittoria Martini, Ludovica Primitivo, Lei‐Jie Zhou, Christian Mück‐Lichtenfeld, Miquel A. Pericàs, Olga García Mancheño   +7 more
wiley   +2 more sources