Results 151 to 160 of about 73,933 (268)

Multi‐Level Confinement Single‐Molecule Charge Transfer Activated PRET for Near‐Infrared Targeted Cell Imaging

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
The cascade supramolecular assembly of charge‐transfer arrays not only triggered a topological transformation from nanofiber to nanorod and vesicles, but also promoted single‐molecule phosphorescent resonance energy transfer, expanding phosphorescence emission at 500 nm to near‐infrared delayed fluorescence emission at 650 nm with a lifetime of 11.20 ...
Zhuo Lei   +5 more
wiley   +1 more source

Synthesis and biological activity study of tanshinone I-pyridinium salt derivatives

open access: yesNatural Products and Bioprospecting
Natural product tanshinone I exhibits weak potency and poor drug-like properties, which have restricted its clinical development as an anticancer agent.
Huimin Zhao   +9 more
doaj   +1 more source

Construction of a Clusteroluminescent Liquid Crystal System With Tunable Properties and Its Application in Information Encryption

open access: yesAggregate, Volume 7, Issue 5, May 2026.
In this work, a tunable luminescent liquid crystal system with clusterization‐triggered emission was constructed. The liquid crystal mesogen B‐Chol formed a thermotropic liquid crystal with clusteroluminescence character. The change of birefringence, the chirality inversion and clusteroluminescence enhancement could be realized by the host‐guest ...
Danyu Xia   +5 more
wiley   +1 more source

Polyoxometalates for Health, Electronics, Energy, and the Environment: Challenges, Opportunities, and Future Horizons

open access: yesChemistryEurope, Volume 4, Issue 5, May 2026.
Polyoxometalates (POMs), illustrated as lemon‐like cars racing along a winding road, symbolize the accelerating progress of POM research toward technological applications. Global research communities, recent advances, and emerging opportunities highlight how coordinated efforts drive the transition of POM science from molecular discovery to deployable ...
Kirill Monakhov   +15 more
wiley   +1 more source

Lanthanide Monoporphyrinates and Complexes With a Schiff Base Derivative: Thermodynamic Stability and Bioimaging Capabilities

open access: yesChemistry–Methods, Volume 6, Issue 5, May 2026.
This study provides new data for the stability constants of lanthanide complexes using spectrometric methods with different approaches, considering the stability differences. Clinical applications ranging from magnetic resonance imaging to cancer therapy are more relying on the use of lanthanide coordination compounds.
Wanqi Zhou   +5 more
wiley   +1 more source

Membrane Engineering for Battery Systems: Bridging Design Principles and Frontier Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
The review emphasizes membrane separators' role in battery performance and safety, covering redox flow, lithium‐ion, and solid‐state batteries. It reviews advances in membrane materials (e.g., polymer electrolytes, hybrid composites) and ion transport mechanisms, while addressing challenges like dendrite growth and crossover losses.
Xiaoqun Zhou   +3 more
wiley   +1 more source

A scanning electron microscopy study of the macro-crystalline structure of 2-(2,4-dinitrobenzyl) pyridine [PDF]

open access: yes
The compound, 2-(2,4-dinitrobenzyl) pyridine, was synthesized in the laboratory; an introductory level electron microscopy study of the macro-crystalline structure was conducted using the scanning electron microscope (SEM).
Hammond, Ernest C., Jr.   +1 more
core   +1 more source

Rhodium‐Catalyzed Regioselective Addition of N‐Hydroxyl Imides to Internal Alkynes

open access: yesIsrael Journal of Chemistry, Volume 66, Issue 3, May 2026.
An intermolecular rhodium‐catalyzed regioselective addition of N‐hydroxyl imides to internal alkynes leads to branched O‐allyl compounds, which can be readily transformed to allylic alcohols and O‐allyl hydroxylamines after deprotection. Isotopic labelling experiments suggest a plausible reaction mechanism.
Zi Liu, Bernhard Breit
wiley   +1 more source

No Dye Fits All: Illuminating the Challenges of Fluorescent Extracellular Vesicle Labeling

open access: yesJournal of Extracellular Vesicles, Volume 15, Issue 5, May 2026.
ABSTRACT The widespread use of fluorescent dyes for extracellular vesicle (EV) labeling has substantially improved our ability to trace EVs in vitro, ex vivo, and in vivo. However, interpretability of these experiments remains limited by methodological challenges, including incomplete dye removal, dye‐associated artifacts, and intrinsic EV ...
Petra Vrdoljak   +9 more
wiley   +1 more source

Host Factor Induced Bacterial Extracellular Vesicles Promote Horizontal Gene Transfer in Vibrio cholerae

open access: yesJournal of Extracellular Vesicles, Volume 15, Issue 5, May 2026.
Antimicrobial stressors, that is, bile or mitomycin C, induce enlarged, nucleic acid‐rich bacterial extracellular vesicles in Vibrio cholerae that facilitate horizontal gene transfer in vitro and during intestinal colonisation. The findings provide a detailed comparison of control versus stress‐induced vesicles, identify bile as a host factor shaping ...
Dominik Fleischhacker   +6 more
wiley   +1 more source

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