Results 141 to 150 of about 84,237 (324)

Plant Lipid Droplets and Derived Lipidic Nano‐Assemblies: Structure, Biogenesis and Pharmaceutical Applications

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Lipid droplets (LDs) serve as the primary storage site for neutral lipids in plant cells, with growing evidence supporting many additional biological roles, such as in lipid homeostasis, signalling, trafficking, inflammatory responses and inter‐organelle communication.
Abdulsamie Hanano   +2 more
wiley   +1 more source

Bench‐Stable Boryl Thianthrenium Dication Enables Aziridinyl Boronate Synthesis via Metal‐Free Late‐Stage Aziridination with Diverse Nitrogen Nucleophiles

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
A bench‐stable boryl thianthrenium dication is synthesized via thianthrenation of vinyl MIDA boronate. This novel dication enables metal‐free, chemo‐, and diastereoselective late‐stage aziridination with diverse nitrogen nucleophiles. The strategic significance is further showcased by one‐pot electrochemical and asymmetric protocols and versatile ...
Veerabhadra R. Vulupala   +7 more
wiley   +2 more sources

Metal-organic frameworks as selective or chiral oxidation catalysts [PDF]

open access: yes, 2014
Since the discovery of Metal Organic Frameworks (MOFs) in the early 1990s, the amount of new structures has grown exponentially. A MOF typically consists of inorganic nodes that are connected by organic linkers to form crystalline, highly porous ...
Leus, Karen   +2 more
core   +1 more source

Phospholipid Profiling Established by Structure‐Rich Fragments for Molecular Species Level Shotgun Analysis

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 8, 30 April 2026.
ABSTRACT Rationale Accurate identification of phospholipid molecular species remains a major challenge in shotgun lipidomics because conventional tandem mass spectrometry typically resolves only one structural moiety at a time. This structural ambiguity limits confident lipid biomarker discovery and biological interpretation.
Rong Chen   +4 more
wiley   +1 more source

The influence of hydrogen treatment and catalyst morphology on the interaction of oxygen with a silver catalyst [PDF]

open access: yes, 1987
The interaction of an unsupported silver catalyst which had been pretreated by hydrogen at various temperatures with oxygen at 210°C has been studied using Temperature Programmed Reduction (TPR) over a temperature range up to 900°C. Hydrogen treatment at
Lefferts, L.   +2 more
core   +4 more sources

Incorporating Heavy Atom Effect onto Molecular Rotors for Realizing Exceptionally Photocatalytic Oxidation Reaction under Low‐Temperature Conditions

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 3, 3 February 2026.
Here, we reported a series of molecular‐rotor‐based photoactivated oxidase mimics, DAPy‐Xm, in which heavy atom incorporation enhances both ROS generation and cold‐adapted property. Among them, DAPy‐Im enables efficient photo‐oxidation of ergosterol and photocatalytic H2O2 production at low temperature.
Barbara Zenabu Anibea   +3 more
wiley   +1 more source

Biocatalytic Asymmetric Michael Addition of Thiols to α,β‐Unsaturated Aldehydes via Enzyme‐Bound Iminium Ion Intermediates

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 3, 3 February 2026.
Biocatalytic stereo‐controlled C–S bond formation unlocked! Engineered, cofactor‐independent 4‐oxalocrotonate tautomerase variants catalyze enantioselective thia‐Michael additions of aliphatic thiols to cinnamaldehyde, affording (R)‐β‐thioenals with up to 99% conversion and high enantiopurity (up to 95:5 e.r.).
Michele Crotti   +3 more
wiley   +1 more source

Melon seed oil epoxidation: Kinetics and neuro-fuzzy evaluation

open access: yesSouth African Journal of Chemical Engineering
Melon seed oil (MSO) is characterized by unsaturated triglycerides, making it a suitable candidate for epoxidation. This work explored the kinetic and Optimization of MSO epoxidation by the in-situ generation of peroxyacetic acid.
Kenechi Nwosu-Obieogu   +7 more
doaj   +1 more source

Metabolomic Analysis of Phytophthora parasitica Growth in the Presence of β‐sitosterol Indicates Adaptive Mechanisms Modulated by Sterols

open access: yesJournal of Basic Microbiology, Volume 66, Issue 2, February 2026.
ABSTRACT Phytophthora parasitica is a generalist phytopathogenic oomycete that infects a series of crops with great economic interest, including tomato, tobacco, and citrus species. Sterols are essential lipids in eukaryotic organisms, playing a fundamental role in the structure and function of the cell membrane.
Pâmela Ponce Martins   +7 more
wiley   +1 more source

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