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

Dynamic Equilibrium02:20

Dynamic Equilibrium

56.7K
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
56.7K
Couple01:29

Couple

589
A couple is a pair of parallel forces equal in magnitude but in opposite directions. The forces are separated by a perpendicular distance, known as the couple's arm. The couple causes a rotation force or moment that rotates the body about an axis perpendicular to the plane of the forces. The resulting moment is referred to as the couple moment. The SI unit of a couple moment is the Newton-meter (N-m).
A typical example to understand this concept is tightening a bolt with a lug wrench. A...
589
Static Equilibrium - II01:07

Static Equilibrium - II

9.1K
Static equilibrium is a special case in mechanics that is very important in everyday life. It occurs when the net force and the net torque on an object or system are both zero. This means that both the linear and angular accelerations are zero. Thus, the object is at rest, or its center of mass is moving at a constant velocity. However, this does not mean that no forces are acting on the object within the system. In fact, there are very few scenarios on Earth in which no forces are acting upon...
9.1K
Work of a Couple Moment01:12

Work of a Couple Moment

811
Mechanical engineering involves the study of motion, energy, and force, and is concerned with designing, manufacturing, and maintaining mechanical systems. One important concept in this field is the couple moment, produced by two equal and opposite forces acting at two points in a rigid body separated by a certain distance.
When the rigid body undergoes a differential displacement due to a couple, its motion can be divided into two parts: equal translation of the two points to their final...
811
Equivalent Couples01:28

Equivalent Couples

402
In mechanical engineering, the concept of equivalent couples plays a crucial role in understanding and analyzing various mechanical systems.
Two couples are considered to be equivalent if they produce the same rotational effect on a rigid body. In other words, the two couples have the same magnitude and act in the same direction, causing the same angular displacement or acceleration in the body.
For instance, consider two couples lying in the plane of the page, with one having a pair of equal...
402
Moment of a Couple: Problem Solving01:30

Moment of a Couple: Problem Solving

1.3K
The moment of couple is an essential concept in physics and engineering, used to calculate the rotational force, or torque, that is created when a couple —two equal and opposite forces—acts on an object.
The moment of a couple is found by multiplying the magnitude of one of the forces by the perpendicular distance between the line of action of the two forces. This creates a twisting force, which can be used to rotate an object. The moment of a couple is used to solve problems...
1.3K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

BODIPY Photocage-Based Injectable Hydrogel for Light-Controlled Nanoparticle Release.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Bionano Interface Optimization for Rational Lateral Flow Assay Development.

ACS nano·2026
Same author

Image-guided optimization of regenerative graft attachment to the heart.

Biomaterials·2026
Same author

Towards intelligent and miniaturized drug delivery devices.

Nature·2026
Same author

The Impact of Polyethylene Glycol Lipid Anchors on the Physicochemical Properties, Protein Corona, Function, and Biodistribution of Lipid Nanoparticles.

ACS nano·2026
Same author

Harnessing Phase Separation for the Development of High-Performance Hydrogels.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same journal

A native sulfur deposit in Gale crater, Mars.

Science (New York, N.Y.)·2026
Same journal

Coordinated demise of harmful algal blooms.

Science (New York, N.Y.)·2026
Same journal

Genetic effects put into context.

Science (New York, N.Y.)·2026
Same journal

Bacteria share proteins to survive antibiotics.

Science (New York, N.Y.)·2026
Same journal

Impacts shaped Earth's first continents.

Science (New York, N.Y.)·2026
Same journal

Erratum for the Report "Covalently bonded single-molecule junctions with stable and reversible photoswitched conductivity" by C. Jia <i>et al</i>.

Science (New York, N.Y.)·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Oct 13, 2025

Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography
09:34

Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography

Published on: February 17, 2022

3.5K

Un dúo dinámico

Jonathan P Wojciechowski1, Molly M Stevens1

  • 1Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, UK.

Science (New York, N.Y.)
|November 11, 2021
PubMed
Resumen
Este resumen es generado por máquina.

Las nanofibras de autoensamblaje promueven la reparación de lesiones de la médula espinal en ratones. Este enfoque biomaterial ofrece una estrategia prometedora para la regeneración neurológica y la recuperación funcional después de una lesión.

Más Videos Relacionados

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
08:36

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

Published on: March 21, 2019

7.4K
Quantifying Cytoskeleton Dynamics Using Differential Dynamic Microscopy
06:37

Quantifying Cytoskeleton Dynamics Using Differential Dynamic Microscopy

Published on: June 15, 2022

3.8K

Videos de Experimentos Relacionados

Last Updated: Oct 13, 2025

Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography
09:34

Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography

Published on: February 17, 2022

3.5K
Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
08:36

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

Published on: March 21, 2019

7.4K
Quantifying Cytoskeleton Dynamics Using Differential Dynamic Microscopy
06:37

Quantifying Cytoskeleton Dynamics Using Differential Dynamic Microscopy

Published on: June 15, 2022

3.8K

Área de la Ciencia:

  • Ciencia de los biomateriales
  • La neurociencia
  • La Medicina Regenerativa

Sus antecedentes:

  • La lesión de la médula espinal (SCI) conduce a déficits motores y sensoriales significativos.
  • Los tratamientos actuales para la LME tienen una eficacia limitada en la promoción de la recuperación funcional.
  • El desarrollo de biomateriales avanzados es crucial para la regeneración de tejidos.

Objetivo del estudio:

  • Investigar el potencial de las nanofibras de autoensamblaje para la reparación de lesiones de la médula espinal.
  • Evaluar el impacto de los andamios de nanofibra en la regeneración neuronal y los resultados funcionales en un modelo de ratón.

Principales métodos:

  • Fabricación de nanofibras biodegradables capaces de ensamblarse por sí mismas.
  • Inducción quirúrgica de la lesión de la médula espinal en un modelo de ratón.
  • Implantación de nanofibras en el sitio de la lesión.
  • Evaluación de la reparación histológica, la regeneración axonal y la recuperación de la función motora.

Principales resultados:

  • Las nanofibras de autoensamblaje se integraron con éxito con el tejido huésped.
  • Se observó una regeneración axonal significativa en todo el sitio de la lesión en el grupo tratado.
  • Los ratones tratados con nanofibras mostraron mejoras notables en la función motora en comparación con los controles.

Conclusiones:

  • Las nanofibras de autoensamblaje proporcionan un microambiente de apoyo para el crecimiento axonal después de una lesión en la médula espinal.
  • Esta estrategia basada en nanofibras demuestra un potencial significativo para promover la recuperación funcional en las LME.
  • La investigación adicional en biomateriales de nanofibra podría conducir a nuevas intervenciones terapéuticas para lesiones neurológicas.