Results 41 to 50 of about 832 (192)

Polarity- and Pressure-Induced Emission from a Benzophenone-Based Luminophore

open access: yesMolecules, 2022
Since strong polarity usually causes emission quenching, materials with polarity-induced emission (PIE) are rarely reported despite their important applications in polar environments. Herein, an N-phenylcarbazole-substituted benzophenone derivative (BP-3-
Qintao Hu   +3 more
doaj   +1 more source

Approaches to polymeric mechanochromic materials [PDF]

open access: yesJournal of Polymer Science Part A: Polymer Chemistry, 2016
ABSTRACTMechanochromic materials respond to mechanical stimuli with a change of their optical properties. Such materials are of interest for many technological applications and support fundamental research as they help improving the understanding of stress transfer in polymeric objects and aid in the identification of the processes that lead to ...
Céline Calvino   +3 more
openaire   +3 more sources

Multiresponsive Cylindrically Symmetric Cholesteric Liquid Crystal Elastomer Fibers Templated by Tubular Confinement

open access: yesAdvanced Science, 2023
Cylindrically symmetric cholesteric liquid crystal elastomer (CLCE) fibers templated by tubular confinement are reported, displaying mechanochromic, thermochromic, and thermomechanical responses.
Yong Geng, Jan P.F. Lagerwall
doaj   +1 more source

Force-Dependent Multicolor Mechanochromism from a Single Mechanophore [PDF]

open access: yes, 2019
We report a bis-naphthopyran mechanophore that exhibits force-dependent changes in visible absorption. A series of polymers incorporating a chain-centered bis-naphthopyran mechanophore was synthesized and mechanically activated using ultrasonication.
Molly E. McFadden (6953246)   +3 more
core   +4 more sources

Synthesis, characterization, aggregation-induced emission, solvatochromism and mechanochromism of fluorinated benzothiadiazole bonded to tetraphenylethenes [PDF]

open access: yes, 2018
Fluorinated benzothiadiazole bonded to two tetraphenylethenes were synthesized. The compounds exhibited remarkable aggregation-induced emission, solvatochromism and mechanochromism.
Yu, Chin-Yang   +5 more
core   +1 more source

Visualizing and Quantifying Impact with Mechanochromic Sensing Paints Based on Self-Assembled Polydiacetylene-Silk Core-Shell Vesicles. [PDF]

open access: yesAdv Sci (Weinh)
Tracking physical impacts is important in many fields. Self‐assembled microparticles made from polydiacetylene and silk fibroin that change color from blue to red when hit can provide an alternative approach to traditional mechanical transducers, quantitatively visualizing impact with responses ranging from <100 to 770 N.
Presti ML   +4 more
europepmc   +2 more sources

Aggregation-induced delayed fluorescence molecules with mechanochromic behaviors for efficient blue organic light-emitting diodes

open access: yesCell Reports Physical Science, 2022
Summary: Aggregation-induced delayed fluorescence (AIDF) materials combining the advantages of aggregation-induced emission and thermally activated delayed fluorescence have attracted considerable attention. However, blue AIDF materials with satisfactory
Junchu He   +6 more
doaj   +1 more source

Multicolor Mechanochromism of a Polymer/Silica Composite with Dual Distinct Mechanophores [PDF]

open access: yes, 2019
The development of a multicolor mechanochromic polymer/silica composite is achieved by using two distinct types of mechanochromophores. The multicolor mechanochromism of the composite containing diarylbibenzofuranone in silica-rich domains and ...
Lau, Vivian M.   +13 more
core   +1 more source

Deep Learning Enables Identification of Antimicrobial Peptides Through Mechanochromic Fingerprints

open access: yesAngewandte Chemie, EarlyView.
We demonstrate a new platform for antimicrobial peptide identification by combining polydiacetylene, hyperspectral imaging, and deep learning. The trained model classifies distinct spectral fingerprints into 14 peptide classes with 96.79% accuracy, revealing previously hidden molecular information beyond conventional colorimetric sensing.
Jiali Chen   +4 more
wiley   +2 more sources

Structure–mechanical property correlations in mechanochromic luminescent crystals of boron difluoride dibenzoylmethane derivatives

open access: yesIUCrJ, 2015
The structure and mechanical properties of crystalline materials of three boron difluoride dibenzoylmethane (BF2dbm) derivatives were investigated to examine the correlation, if any, among mechanochromic luminescence (ML) behaviour, solid-state structure,
Gamidi Rama Krishna   +6 more
doaj   +1 more source

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