Results 11 to 20 of about 209 (109)

Mechanofluorochromic Difluoroboron β‐Diketonates Based Polymer Composites: Toward Multi‐Stimuli Responsive Mechanical Stress Probes

open access: yesMacromolecular Rapid Communications, Volume 43, Issue 15, August 2022., 2022
Mechano‐responsive fluorescent polymer composites, obtained by incorporation of difluoroboron β‐diketonates fluorophores in linear low‐density polyethylene, are shown to be sensitive to both traction and friction forces with distinct fluorescent responses.
Benjamin Poggi   +4 more
wiley   +2 more sources

Mechanofluorochromism of a Difluoroboron-β-Diketonate Derivative at the Nanoscale. [PDF]

open access: yesJ Phys Chem Lett, 2019
Mechanofluorochromic nanoparticles have been prepared from a difluoroboron β-diketonate complex, and their behavior has been investigated at the nanoscale using atomic force microscopy (AFM) coupled with fluorescence spectroscopy.
Louis M   +4 more
europepmc   +3 more sources

Luminescent Difluoroboron β-Diketonate PLA-PEG Nanoparticle. [PDF]

open access: yesBiomacromolecules, 2017
Luminescent difluoroboron β-diketonate poly­(lactic acid) (BF2bdkPLA) materials serve as biological imaging agents. In this study, dye structures were modified to achieve emission colors that span the visible region with potential for multiplexing ...
Kerr C   +5 more
europepmc   +3 more sources

Oxygen Sensing Difluoroboron β-Diketonate Polylactide Materials with Tunable Dynamic Ranges for Wound Imaging. [PDF]

open access: yesACS Sens, 2016
Difluoroboron β-diketonate poly­(lactic acid) materials exhibit both fluorescence (F) and oxygen sensitive room-temperature phosphorescence (RTP). Introduction of halide heavy atoms (Br and I) is an effective strategy to control the oxygen sensitivity in
DeRosa CA   +7 more
europepmc   +2 more sources

Boron(iii) β-diketonate-based small molecules for functional non-fullerene polymer solar cells and organic resistive memory devices. [PDF]

open access: yesChem Sci, 2020
A class of acceptor–donor–acceptor chromophoric small-molecule non-fullerene acceptors, 1–4, with difluoroboron(III) β-diketonate (BF2bdk) as the electron-accepting moiety has been developed.
Li P   +9 more
europepmc   +2 more sources

Two-Photon Excited Near-Infrared Phosphorescence Based on Secondary Supramolecular Confinement. [PDF]

open access: yesAdv Sci (Weinh), 2022
A multi‐stage assembly strategy involving macrocyclic confinement and nano‐confinement is reported, which induces and enhances guests’ phosphorescence with two‐photon absorption and NIR emission. Moreover, the assemblies possess excitation‐dependent emission properties, in which luminescence covers the visible and NIR regions under different excitation
Ma XK, Zhou X, Wu J, Shen FF, Liu Y.
europepmc   +2 more sources

Circularly polarized luminescence from supramolecular assemblies based on small molecules. [PDF]

open access: yesSmart Mol
This minireview outlines the recent advances of circularly polarized luminescence (CPL)‐active supramolecular assemblies based on small molecules. It covers fundamental concepts of CPL, typical design strategies of CPL‐active materials—including the assembly of chiral luminophores, the assembly of chiral components and achiral luminophores, and the ...
Liu X   +5 more
europepmc   +2 more sources

Achieving White‐Light Emission Using Organic Persistent Room Temperature Phosphorescence

open access: yesAngewandte Chemie, Volume 135, Issue 32, August 7, 2023., 2023
White‐light emission can be realized by purely organic phosphorescent emitters using either single‐component or host‐guest systems by mixing two fundamental colors (blue and yellow) or three primary colors (blue, green and red). Here we describe current strategies for achieving white phosphorescence at room‐temperature using organic emitters.
Zhu Wu   +2 more
wiley   +2 more sources

Multi-stimuli responsive luminescent azepane-substituted β-diketones and difluoroboron complexes. [PDF]

open access: yesMater Chem Front, 2017
Multi-stimuli responsive properties were found for azepane-substituted β-diketones and difluoroboron complexes, including solvatochromism, viscochromism, aggregation-induced emission, mechanochromic luminescence and halochromism.
Wang F   +4 more
europepmc   +2 more sources

Oxygen Sensing Difluoroboron Dinaphthoylmethane Polylactide. [PDF]

open access: yesMacromolecules, 2015
Dual emissive properties of solid-state difluoroboron β-diketonate-poly­(lactic acid) (BF2bdk-PLA) materials have been utilized as biological oxygen sensors. Dyes with red-shifted absorption and emission are important for multiplexing and in vivo imaging,
DeRosa CA   +6 more
europepmc   +2 more sources

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