Results 31 to 40 of about 2,487 (206)

Bioinspired Healable Mechanochromic Function from Fluorescent Polyurethane Composite Film

open access: yesChemistryOpen, 2020
Camouflage and wound healing are two vital functions for cephalopods to survive from dangerous ocean risks. Inspired by these dual functions, herein, we report a new type of healable mechanochromic (HMC) material.
Xiaoke Song   +4 more
doaj   +1 more source

Sensitive Stretchable and Pressable Mechanochromic Photonic Crystals for Dynamic Displays and Visual Sensing

open access: yesAdvanced Sensor Research, 2023
Mechanochromic photonic crystals (MPCs) have shown wide applications in visual sensing, displays, anti‐counterfeiting, etc. However, most reported MPCs can only sense stretching or pressure and exhibit poor sensitivity, which greatly limits their ...
Boru Wei   +3 more
doaj   +1 more source

Stretchable Photonic Semicrystal Interface by Pressure‐Assistant Self‐Assembly

open access: yesAdvanced Materials Interfaces, 2022
Stretchable structural colors that can dynamically respond to mechanical stimuli are garnering interest as energy‐free mechanical‐optical sensors. Typical technologies for embedding photonic crystals (PCs) in elastic hydrogels generally involve etching ...
Zhaosong Wang   +6 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

Hierarchically Structured Deformation‐Sensing Mechanochromic Pigments

open access: yesAdvanced Science, 2023
Mechanochromic materials alter their color in response to mechanical force and are useful for both fundamental studies and practical applications. Several approaches are used to render polymers mechanochromic, but they generally suffer from limitations ...
Jess M. Clough   +3 more
doaj   +1 more source

Mechanochromic Polymers That Recognize the Duration of the Mechanical Stimulation via Multiple Mechanochromism

open access: yesMacromolecular Rapid Communications, 2020
AbstractMechanochromic polymers can be used as stress‐ and damage‐detecting sensors in polymeric materials, given that mechanical stimuli can be visualized by color changes. Although many types of mechanochromic polymers have been reported so far, there are only few examples on their further functionalization based on multiple color changes (multicolor
K. Ishizuki, D. Aoki, H. Otsuka
openaire   +3 more sources

Force‐Induced Synergetic Pigmentary and Structural Color Change of Liquid Crystalline Elastomer with Nanoparticle‐Enhanced Mechanosensitivity

open access: yesAdvanced Science, 2022
The ability of some animals to rapidly change their colors can greatly improve their chances of escaping predators or hunting prey. A classic example is cephalopods, which can rapidly shift through a wide range of colors.
Chang Sun   +9 more
doaj   +1 more source

Suppressing the Mechanochromism of Flexible Photonic Crystals

open access: yesOptics Express, 2023
We present flexible photonic crystal slabs (PCS) obtained by sputtering of a dielectric 100 nm Nb2O5 high refractive index layer onto a flexible nanostructured polydimethylsiloxane (PDMS) substrate with 370 nm grating period. The PCS exhibit a guided mode resonance at around 650 nm.
Fabio A. Kraft   +4 more
openaire   +2 more sources

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

Fundamental Aspects of Stretchable Mechanochromic Materials: Fabrication and Characterization. [PDF]

open access: yesMaterials (Basel)
Mechanochromic materials provide optical changes in response to mechanical stress and are of interest in a wide range of potential applications such as strain sensing, structural health monitoring, and encryption.
Tang C.
europepmc   +2 more sources

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