Results 151 to 160 of about 38,598 (282)

Triplet 4‐Nitrenemethyl‐Pyridine‐N‐Oxide: A Model Alkyl Nitrene Isolated in Cryogenic Matrices

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 5, May 2026.
The simplest triplet alkyl nitrene bearing a pyridine‐N‐oxide moiety was generated by direct irradiation (λ > 350 nm) of the corresponding azide in an Ar matrix at 15 K. Quantum tunneling 1,2‐H shift to the corresponding imine is thermodynamically favorable but does not occur due to a high‐energy barrier (~36 kcal mol−1).
Cláudio M. Nunes   +5 more
wiley   +1 more source

Using the Photostationary State of Arylazopyrazoles to Control Phase Transitions of Liquid Crystals

open access: yesAdvanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
A series of new arylazopyrazole photoswitches is designed as dopants for liquid crystalline materials. Unprecedented, the distribution of photoisomers at the photostationary state upon irradiation with light of specific wavelengths (365, 460, 520 nm) is used to control the liquid crystalline phase transitions under isothermal conditions, including ...
Tobias Thiele   +3 more
wiley   +1 more source

Photochromic Cholesteric Liquid Crystals via Arylazopyrazole Functionalization of Hydroxypropyl Cellulose

open access: yesAdvanced Materials, Volume 38, Issue 19, 1 April 2026.
We produce a new derivative of hydroxypropyl cellulose functionalized with arylazopyrazole side chains and demonstrate its photoswitchable behaviors in dilute and concentrated aqueous solutions, ultimately designing a series of photochromic cholesteric materials that can be photopatterned as write‐erase displays.
Simona G. Fine   +5 more
wiley   +1 more source

First Flexible All‐Perovskite Tandem Minimodule Using Au‐Free Recombination Junction

open access: yesAdvanced Photonics Research, Volume 7, Issue 4, April 2026.
Through the development of a thin‐indium tin oxide recombination layer with a high lateral resistance combined with a compact SnO2 buffer layer, stacking MA‐free wide bandgap and narrow bandgap subcells is successfully achieved. Also, thanks to the implementation of a suitable laser scribing process, 11 cm2 all‐perovskite tandem minimodules are ...
Amina Labiod   +4 more
wiley   +1 more source

Europium‐Modified Urea‐Assisted TiO2 Nanoparticles as Multifunctional Materials for Natural Sunlight‐Driven Photocatalysis, Antimicrobial Defense, and Anticancer Activity

open access: yesChemCatChem, Volume 18, Issue 7, 14 April 2026.
This work reports, for the first time, the synergistic integration of urea‐assisted surface engineering and europium ion doping in TiO2 to achieve efficient sunlight‐driven degradation of structurally diverse azo and non‐azo dyes, coupled with enhanced antibacterial activity, supported by mechanistic validation through scavenger and GC–MS analyses ...
N. Lakshman Kumar   +9 more
wiley   +1 more source

Rational Design Strategies for Stimuli‐Responsive DNAzymes Using Modified and Artificial Nucleotides

open access: yesChemistry – A European Journal, Volume 32, Issue 13, 1 April 2026.
Activity control of RNA‐cleaving DNAzymes in response to external stimuli has attracted growing interest for applications in DNA‐based diagnostics, therapeutics, and dynamic DNA nanotechnology. This review summarizes rational design strategies for stimuli‐responsive DNAzymes using modified or artificial nucleotides, including split and caged DNAzymes ...
Yusuke Takezawa, Mitsuhiko Shionoya
wiley   +1 more source

Study on iron anchoring methods for magnetic biochar: Characterization, functional mechanism, and RBBR dye removal

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1836-1851, April 2026.
Abstract Magnetic biochar (MBC) is a novel bio‐metallic composite material with high potential in sustainable water cleaning. Iron anchoring is critical in forming iron‐based MBC and will fundamentally impact its characteristics and functionality in dye removal applications. However, the mechanism is not well‐revealed.
Soumik Chakma   +4 more
wiley   +1 more source

Reducing Nitrogen Fertilizer Dependency in Tropical Pastures Through Azospirillum Brasilense and Pseudomonas Fluorescens Coinoculation

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
Coinoculation with Azospirillum brasilense and Pseudomonas fluorescens was associated with maintained forage productivity under reduced nitrogen (N) fertilizer rates in tropical pastures. This hypothesis was evaluated in a 2‐year field experiment conducted over two consecutive growing seasons (2022 and 2023) the State University of Goiás, São Luís de ...
Lucas Henrique Ferreira Santos   +11 more
wiley   +1 more source

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