Results 121 to 130 of about 219,323 (350)

An electrochemically responsive B–O dynamic bond to switch photoluminescence of boron-nitrogen-doped polyaromatics

open access: yesNature Communications
Boron-doped polycyclic aromatic hydrocarbons exhibit excellent optical properties, and regulating their photophysical processes is a powerful strategy to understand the luminescence mechanism and develop new materials and applications.
Baige Yang   +8 more
doaj   +1 more source

Stimuli-Responsive Vesicles and Hydrogels Formed by a Single-Tailed Dynamic Covalent Surfactant in Aqueous Solutions

open access: yesMolecules
Controlling the hierarchical self-assembly of surfactants in aqueous solutions has drawn much attention due to their broad range of applications, from targeted drug release, preparation of smart material, to biocatalysis.
Chunlin Xu   +5 more
doaj   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Dynamic Covalent Bond: Modes of Activation of the C—ON Bond in Alkoxyamines

open access: yesProgress in polymer science, 2023
G. Audran   +8 more
semanticscholar   +1 more source

Selective and Precise Editing of Digital Polymers Through Parallel or Series Toehold‐Mediated Strand Displacement

open access: yesAdvanced Functional Materials, EarlyView.
A sequence‐encoded supramolecular construct containing two accessible toeholds is developed herein for enabling multiple editing operations. By introducing specific input strands, it is possible to selectively erase or rewrite digital content through parallel or series toehold‐mediated strand displacement (PTMSD or STMSD).
Jakub Ossowski   +3 more
wiley   +1 more source

EngineeringSupramolecular Hydrogen Bonding Interactionsinto Dynamic Covalent Polymers To Obtain Double Dynamic Biomaterials

open access: greenJournal of the American Chemical Society
Inspired by dynamic systems in nature, we can introduce dynamics into synthetic biomaterials through dynamic covalent bonds or supramolecular interactions.
Jasper G. M. Aarts (21413301)   +3 more
semanticscholar   +3 more sources

Malleable, Ultrastrong Antibacterial Thermosets Enabled by Guanidine Urea Structure

open access: yesAdvanced Science
Dynamic covalent polymers (DCPs) that strike a balance between high performance and rapid reconfiguration have been a challenging task. For this purpose, a solution is proposed in the form of a new dynamic covalent supramolecular motif—guanidine urea ...
Zhen Yu   +7 more
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Ionic Kratzer bond theory and vibrational levels for achiral covalent bond HH [PDF]

open access: yes, 2008
A dihydrogen Hamiltonian reduces to the Sommerfeld-Kratzer-potential, adapted for field quantization according to old-quantum theory. Constants omega_e, k_e and r_e needed for the H_2 vibrational system derive solely from hydrogen mass m_H.
Van Hooydonk, G.
core   +2 more sources

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