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

Magnetic Force01:18

Magnetic Force

In addition to the electric forces between electric charges, moving electric charges exert magnetic forces on each other. A magnetic field is created by a moving charge or a group of moving charges known as the electric current. A magnetic force is experienced by a second current or moving charge in response to this magnetic field. Fundamentally, interactions between moving electrons in the atoms of two bodies produce magnetic forces between them.
The magnetic force acting on a moving charge...
Magnetic Damping01:17

Magnetic Damping

Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
Colloidal precipitates01:09

Colloidal precipitates

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...
Coagulation01:06

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Content and face validity of a food frequency questionnaire for the assessment of ultra-processed food consumption in the Italian adult population: a pilot study.

Frontiers in nutrition·2026
Same author

Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration (EBUS-TBNA) in Moderate Sedation in Patients Aged 80 Years and Older.

Journal of clinical medicine·2026
Same author

Light-tunable DNA interactions enable spatiotemporal assembly and relaxation-driven crystallization of colloids.

Soft matter·2026
Same author

Serving size and consumption frequencies in food-based dietary guidelines: A global scoping review.

Food research international (Ottawa, Ont.)·2026
Same author

Translating nutrition science into national policy: comparative assessment of the 2025-2030 U. S. Dietary Guidelines and the Italian Mediterranean-based guidelines.

Frontiers in nutrition·2026
Same author

A Mediterranean Perspective on the 2026-2030 Dietary Guidelines for Americans.

Nutrition reviews·2026
Same journal

Linker Engineering toward NIR-II Metal-Organic Framework with Maximal Emission beyond 1000 nm for Inflammatory Bowel Disease Imaging.

Journal of the American Chemical Society·2026
Same journal

Observing Kinetic Selectivity in Anthracene Photodimerization through Selective Quenching by Excited States of Proximate Rare Earth Cations.

Journal of the American Chemical Society·2026
Same journal

Sequence-Dependent Folding of Recognition-Encoded Melamine Oligomers.

Journal of the American Chemical Society·2026
Same journal

Large Thermo- and Mechanosalient Actuation via Cooperative Twist Elasticity-Induced Packing Motif Conversion.

Journal of the American Chemical Society·2026
Same journal

Discovery and Biosynthesis of Lanthipeptides Featuring an Azepinoindole Scaffold by Radical <i>S</i>-Adenosylmethionine Enzyme-Catalyzed C-C Bond Formation.

Journal of the American Chemical Society·2026
Same journal

Enantiopurity-Controlled Magnetism in a Two-Dimensional Organic-Inorganic Material.

Journal of the American Chemical Society·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: May 23, 2026

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
07:01

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

El ensamblaje coloidal de clic magnético.

Stefano Sacanna1, Laura Rossi, David J Pine

  • 1Center for Soft Matter Research, Department of Physics, New York University, 4-6 Washington Place, New York, New York 10003, USA. s.sacanna@nyu.edu

Journal of the American Chemical Society
|March 28, 2012
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores desarrollaron coloides de parche magnético que se autoensamblan en estructuras complejas sin campos externos. Estas estructuras pueden ser reconfiguradas usando campos magnéticos, permitiendo nuevos materiales reconfigurables.

Más Videos Relacionados

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
08:27

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Published on: August 28, 2017

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries
11:42

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

Published on: January 28, 2018

Videos de Experimentos Relacionados

Last Updated: May 23, 2026

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
07:01

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
08:27

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Published on: August 28, 2017

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries
11:42

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

Published on: January 28, 2018

Área de la Ciencia:

  • Ciencia de la coloide Ciencia de las coloides.
  • Ciencia de los materiales Ciencia de los materiales.
  • Física de la materia blanda Física de la materia blanda

Sus antecedentes:

  • El autoensamblaje coloidal es crucial para la creación de materiales avanzados.
  • El control de las estructuras coloidales generalmente requiere campos externos o diseños complejos de partículas.
  • Los métodos existentes a menudo carecen de reversibilidad o capacidad dinámica de ajuste.

Objetivo del estudio:

  • Introducir una nueva clase de coloides esféricos con parches magnéticos.
  • Para demostrar el autoensamblaje espontáneo en estructuras no lineales impulsadas por fuerzas magnéticas.
  • Investigar la sintonizabilidad y reconfigurabilidad de estas estructuras.

Principales métodos:

  • Fabricación de coloides esféricos con imanes permanentes microscópicos incrustados.
  • Caracterización de las fuerzas de unión magnetostáticas y su influencia en el ensamblaje.
  • Análisis de la interacción entre las interacciones magnéticas, estéricas y electrostáticas.
  • Aplicación de campos magnéticos externos para controlar la geometría y la unión del racimo.

Principales resultados:

  • Los coloides se autoensamblan espontáneamente en estructuras no lineales bien definidas.
  • El ensamblaje es impulsado por fuerzas magnetostáticas sintonizables de imanes incrustados.
  • La geometría del cúmulo se rige por un equilibrio de fuerzas magnéticas, estéricas y electrostáticas.
  • Los campos magnéticos externos permiten la desvinculación reversible y la reconfiguración geométrica.

Conclusiones:

  • Los coloides de parche magnético ofrecen una nueva ruta para el autoensamblaje de estructuras complejas.
  • El sistema permite el montaje espontáneo y la reconfiguración controlada por el campo externo.
  • Este enfoque allana el camino para la creación de materiales dinámicos y reconfigurables.