Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Colloids03:22

Colloids

21.2K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
21.2K
¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

1.8K
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
1.8K
Colloids and Suspensions01:17

Colloids and Suspensions

3.5K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
3.5K
Colloidal precipitates01:09

Colloidal precipitates

6.5K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
6.5K
Fast Decoupled and DC Powerflow01:24

Fast Decoupled and DC Powerflow

760
The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
760
Elasticity01:12

Elasticity

5.0K
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing deformation are removed. When an elastic material deforms under the action of an external force, it experiences internal resistance to the deformation. However, if no external force is applied, it returns to its original state.
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
5.0K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Real-World Effectiveness and Safety of Upadacitinib in Crohn's Disease: Insights From the Eneida Registry.

United European gastroenterology journal·2026
Same author

Hierarchical dynamics and time-length scale superposition in glassy suspensions of ultra-low crosslinked microgels.

The Journal of chemical physics·2026
Same author

A clinical protocol for the detection of comorbidities associated with monogenic causes of male infertility.

Human reproduction (Oxford, England)·2026
Same author

Obstetric and perinatal outcomes from the follow-up of a multicentre randomized controlled trial investigating time-lapse embryo monitoring.

Human reproduction (Oxford, England)·2025
Same author

Probing microscopic dynamics in a uni-axially strained polymer network with light scattering.

Soft matter·2025
Same author

JustRAIGS: Justified Referral in AI Glaucoma Screening Challenge.

IEEE transactions on medical imaging·2025

Video Experimental Relacionado

Updated: Feb 8, 2026

Fast and Sensitive Colloidal Coomassie G-250 Staining for Proteins in Polyacrylamide Gels
10:57

Fast and Sensitive Colloidal Coomassie G-250 Staining for Proteins in Polyacrylamide Gels

Published on: August 3, 2009

41.9K

Desacoplamiento de Estructura y Elasticidad en Geles Coloidales Bajo Compresión Isotrópica

M Milani1, E Cavalletti1, V Ruzzi1

  • 1Laboratoire Charles Coulomb (L2C), Université Montpellier, CNRS, Montpellier, France.

Physical review letters
|February 6, 2026
PubMed
Resumen

El secado controlado de geles fractales coloidales revela que las propiedades mecánicas dependen solo de la fracción de volumen del coloide, no del historial de secado. La microestructura, sin embargo, retiene la memoria de la compresión, desafiando los paradigmas existentes en la ciencia de materiales.

Palabras clave:
geles fractalescompresión isotrópicapropiedades mecánicasmicroestructurafracción de volumensecado controladomemoria estructural

Más Videos Relacionados

A Microfluidic Platform for Stimulating Chondrocytes with Dynamic Compression
07:23

A Microfluidic Platform for Stimulating Chondrocytes with Dynamic Compression

Published on: September 13, 2019

7.1K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

Videos de Experimentos Relacionados

Last Updated: Feb 8, 2026

Fast and Sensitive Colloidal Coomassie G-250 Staining for Proteins in Polyacrylamide Gels
10:57

Fast and Sensitive Colloidal Coomassie G-250 Staining for Proteins in Polyacrylamide Gels

Published on: August 3, 2009

41.9K
A Microfluidic Platform for Stimulating Chondrocytes with Dynamic Compression
07:23

A Microfluidic Platform for Stimulating Chondrocytes with Dynamic Compression

Published on: September 13, 2019

7.1K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

Área de la Ciencia:

  • Física de la Materia Blanda; Ciencia de Materiales; Ciencia Coloidal

Sus antecedentes:

  • Los geles fractales coloidales exhiben comportamientos mecánicos complejos.; Comprender la relación entre la microestructura y las propiedades mecánicas es crucial para los materiales blandos.; La compresión inducida por el secado es un método común para formar estos geles.

Objetivo del estudio:

  • Investigar la compresión isotrópica de geles fractales coloidales mediante secado controlado.; Determinar cómo las tensiones de secado afectan la mecánica y la microestructura del gel.; Explorar la relación entre la respuesta mecánica y la memoria estructural.

Principales métodos:

  • Secado controlado de perlas de gel de tamaño milimétrico.; Dispersión dinámica de luz (DLS) para medir propiedades mecánicas.; Dispersión de rayos X en ángulo pequeño (SAXS) para sondear la microestructura.

Principales resultados:

  • Las tensiones inducidas por el secado se propagan homogéneamente, causando reorganizaciones plásticas.; El módulo de Young y la tensión de fluencia dependen únicamente de la fracción de volumen del coloide (φ), independientemente del historial de secado.; La microestructura del gel retiene la memoria del estado inicial y la vía de compresión, a diferencia de las propiedades mecánicas.

Conclusiones:

  • Las propiedades mecánicas y la microestructura de los geles fractales coloidales están desacopladas.; Los hallazgos desafían el vínculo directo entre estructura y elasticidad en estos materiales.; Abren posibilidades para el control independiente de las propiedades estructurales y mecánicas en materiales blandos.