Results 51 to 60 of about 1,460 (136)

Shortcut to Highly Fluorescent Perylene Derivatives: From Fluoranthene Fissure‐Coupling to Late‐Stage Aromatic Extension

open access: yesChemistryEurope
Access to extended perylene‐based nanographenes (NGs) is severely limited and involves tedious multi‐step synthetic procedures. Here a two‐step synthesis shortcut to highly soluble, bent, and extended perylene‐based NGs from a nonperylene aromatic ...
Lorena Capdevila   +8 more
doaj   +1 more source

Hit‐To‐Lead Optimization of a Pyridylpiperazine Class Against Malaria: Pharmacokinetic Profile and In Vivo Efficacy of Optimized Compounds

open access: yesChemMedChem, Volume 21, Issue 13, 14 July 2026.
Chemical optimization of a novel pyridylpiperazine class yields two promising antimalarial candidates with an exceptional balance of metabolic stability and solubility. These optimized leads significantly protect mice from cerebral malaria, reducing parasitic load by up to 91.7%.
Douglas Davison da Silva Oliveira   +8 more
wiley   +1 more source

Economic potential of the oil palm (Elaeis guineensis Jacq)

open access: yesAgronomía Mesoamericana, 2017
The objective of this research was to highlight the economic importance of the optimal use of products and byproducts of oil palm. In Colombia, productive crops per hectare can generate, over one year, an average of 3.14 tons of oil, and up to 21.68 t of
Juan Sierra Márquez   +2 more
doaj   +1 more source

Together We Are Stronger: An Unexpected Synergistic Effect During Anionic Ligand Exchange in Ruthenium Olefin Metathesis Catalysts

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 13, 2 July 2026.
Combining dichloro and diiodo ruthenium catalysts produces mixed chloro–iodo species via in situ halide exchange, resulting in a new, more efficient catalytic system. The mixed catalysts outperform their homo‐anionic counterparts, delivering enhanced activity, higher conversion, and strong suppression of isomerization under both thermal and ...
Nebal Alassad   +3 more
wiley   +1 more source

Soft Colloidal Robots: Magnetically Guided Liquid Crystal Torons for Targeted Micro‐Cargo Delivery

open access: yesSmall, Volume 22, Issue 37, 2 July 2026.
Torons, topological quasiparticles in liquid crystals, can be propelled using electric fields and precisely steered with magnetic alignment, enabling programmable motion without fluid flow. In microfluidic channels, they transport colloidal cargo and exhibit novel dynamic behavior. Their uniformity, softness, and reconfigurability make torons ideal for
Joel Torres‐Andrés   +4 more
wiley   +1 more source

Un laboratorio de silicio: química sin reactivos

open access: yesRevista de Química, 2013
El Premio Nobel de Química de 2013 ha sido otorgado a A. Warshel, M. Levitt y M. Karplus debido al desarrollo de métodos híbridos de cálculo para química computacional.
Martín Benites Galbiati
doaj  

Predicting Pt-195 NMR Chemical Shift in Pt(II)-Sn(II) Complexes

open access: yesMagnetochemistry
Platinum chemistry covers a wide range of applications, including homogeneous and heterogeneous catalysis as well as cancer therapy. Numerous Pt complexes have been synthesized and studied in recent years, with NMR spectroscopy serving as the primary ...
Milena A. Pereira   +3 more
doaj   +1 more source

Intrinsic enzymatic properties modulate the self-propulsion of micromotors

open access: yesNature Communications, 2019
Self-propulsion of biocatalytic micro- and nanomotors is facilitated by enzymes converting substrates into products. Here, the authors show that intrinsic enzymatic properties such as conformational changes are crucial for the self-propulsion of silica ...
Xavier Arqué   +5 more
doaj   +1 more source

Classical QSAR and Docking Simulation of 4-Pyridone Derivatives for Their Antimalarial Activity

open access: yesMolecules, 2018
In this work, the minimum energy structures of 22 4-pyridone derivatives have been optimized at Density Functional Theory level, and several quantum molecular, including electronic and thermodynamic descriptors, were computed for these substrates in ...
Máryury Flores-Sumoza   +5 more
doaj   +1 more source

Single-molecule kinetic exploration of functional sub-states in an evolving phosphotriesterase

open access: yesNature Communications
Enzymes can exist in multiple stable functional states or sub-states, revealing substantial molecule-to-molecule heterogeneity in catalytic rates even within populations expressed from a clonal gene.
Morito Sakuma   +6 more
doaj   +1 more source

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