Video Experimental Relacionado
Updated: Feb 12, 2026
12:45
Mechanical Stimulation of Chondrocyte-agarose Hydrogels
Published on: October 27, 2012
12.1K
Hidrogel de color estructural sintonizable mecánicamente con redes conductoras MXene/PEDOT:PSS para la codificación
Pingping Wu1, Xuegang Hao1, Mingwei Chang1
1School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
Journal of colloid and interface science
|February 10, 2026
Resumen
Los investigadores desarrollaron un nuevo hidrogel flexible que cambia de color y resistencia eléctrica cuando se estira. Este material portátil ofrece respuestas de doble señal para electrónica avanzada y comunicación segura.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Nanotecnología La nanotecnología es la nanotecnología.
- La optoelectrónica es la óptica electrónica.
Sus antecedentes:
- Los materiales optoelectrónicos flexibles son cruciales para la electrónica portátil, la detección inteligente y la comunicación segura.
- La transducción simultánea de estímulos mecánicos en múltiples modalidades de señal sigue siendo un desafío.
Objetivo del estudio:
- Desarrollar un hidrogel de color estructural conductor y sintonizable mecánicamente.
- Para permitir respuestas de doble señal óptica y eléctrica sincronizadas bajo deformación.
Principales métodos:
- Infiltración de una matriz de poliacrilamida con MXene/PEDOT:PSS en un cristal fotónico (PC) con plantilla de ópalo.
- Caracterización de las propiedades del hidrogel, incluyendo estirabilidad, sensibilidad a la deformación, tiempo de respuesta y durabilidad.
Principales resultados:
- El hidrogel exhibe colores estructurales vívidos y reversibles y una conductividad eléctrica estable.
- Se logra una excelente estirabilidad (hasta un 650% de deformación), alta sensibilidad a la deformación (GF hasta 7,16), respuesta rápida (~ 100 ms) y durabilidad (> 500 ciclos).
- Demostró cambios de color sincronizados y cambios de resistencia con deformación mecánica.
Conclusiones:
- El hidrogel desarrollado ofrece una estrategia versátil para integrar PC con hidrogeles conductores.
- Presenta nuevas oportunidades para la detección multimodal, la lectura de señal visualizada y la comunicación optoelectrónica segura.
- Se demostró con éxito como una plataforma portátil para la codificación de información de doble canal a través del movimiento del dedo.
Videos de Conceptos Relacionados
01:12Mechanically-gated Ion Channels
7.8K
Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
7.8K
02:26Protein Networks
4.6K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.6K
02:18Network Covalent Solids
16.2K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
16.2K
01:19Encoding
875
Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
875
03:02Colors and Magnetism
14.2K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
14.2K
01:30Ligand-Gated Ion Channel Receptor: Gating Mechanism
4.1K
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
4.1K