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

Impact of Groups on Groups01:19

Impact of Groups on Groups

236
Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...
236
Resistivity01:22

Resistivity

4.4K
When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:
4.4K
Resistance01:19

Resistance

5.7K
When a current moves through any conductor, the conductor causes some level of difficulty for the current to flow. The measure of that difficulty is known as the resistance of the material and is represented by R. Every material has its own resistance. In the case of conductors, heat is emitted whenever a current passes through them. Resistance depends on the resistivity of the material. Resistivity is a characteristic of the material used to fabricate electrical components, whereas the...
5.7K
Impact01:30

Impact

483
Impact occurs when two bodies collide, leading to the application of impulsive forces between them. Analyzing impact mechanics involves considering two colliding particles moving along a line known as the line of impact, which passes through their centers and is perpendicular to the contact plane.
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
483
Members Made of Elastoplastic Material01:19

Members Made of Elastoplastic Material

381
The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
As the bending moment...
381
Genetic Material01:20

Genetic Material

3.3K
Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
3.3K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Magnetic medical microrobots with memory-capable genetic circuits.

Science advances·2026
Same author

Stiff morphing composite beams inspired from fish fins.

Interface focus·2024
Same author

Gradients of properties increase the morphing and stiffening performance of bioinspired synthetic fin rays.

Bioinspiration & biomimetics·2024
Same author

Pangolin-inspired untethered magnetic robot for on-demand biomedical heating applications.

Nature communications·2023
Same author

On the Competition between Intergranular and Transgranular Failure within 7xxx Al Alloys with Tailored Microstructures.

Materials (Basel, Switzerland)·2023
Same author

Layered Assembly of Graphene Oxide Paper for Mechanical Structures.

Langmuir : the ACS journal of surfaces and colloids·2022

Video Experimental Relacionado

Updated: Jan 22, 2026

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials
05:30

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials

Published on: January 10, 2025

1.1K

Materiales transparentes parecidos a la nacre, resistentes a los golpes

Z Yin1, F Hannard1, F Barthelat2

  • 1Department of Mechanical Engineering, McGill University, Montreal, Quebec H3A 2K6, Canada.

Science (New York, N.Y.)
|June 29, 2019
PubMed
Resumen

Los investigadores desarrollaron un nuevo vidrio inspirado en el nacre utilizando una estructura de "ladrillo y mortero". Este material innovador mejora significativamente la resistencia al impacto y la dureza, imitando las conchas de moluscos naturales para aplicaciones de vidrio más fuertes y duraderas.

Más Videos Relacionados

Fabrication of Nano-engineered Transparent Conducting Oxides by Pulsed Laser Deposition
10:27

Fabrication of Nano-engineered Transparent Conducting Oxides by Pulsed Laser Deposition

Published on: February 27, 2013

16.0K
Study of a Dot-patterning Process on Flexible Materials using Impact Print-Type Hot Embossing Technology
06:57

Study of a Dot-patterning Process on Flexible Materials using Impact Print-Type Hot Embossing Technology

Published on: April 6, 2020

6.4K

Videos de Experimentos Relacionados

Last Updated: Jan 22, 2026

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials
05:30

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials

Published on: January 10, 2025

1.1K
Fabrication of Nano-engineered Transparent Conducting Oxides by Pulsed Laser Deposition
10:27

Fabrication of Nano-engineered Transparent Conducting Oxides by Pulsed Laser Deposition

Published on: February 27, 2013

16.0K
Study of a Dot-patterning Process on Flexible Materials using Impact Print-Type Hot Embossing Technology
06:57

Study of a Dot-patterning Process on Flexible Materials using Impact Print-Type Hot Embossing Technology

Published on: April 6, 2020

6.4K

Área de la Ciencia:

  • Ciencias de los materiales
  • Biomimética
  • Ingeniería estructural

Sus antecedentes:

  • El vidrio tradicional exhibe excelentes propiedades ópticas, pero sufre de fragilidad y baja resistencia al impacto, lo que limita su uso.
  • Los métodos existentes, como la laminación y el templado, mejoran la respuesta al impacto, pero no abordan la fragilidad inherente.
  • El nacre natural (madre de perla) ofrece una dureza excepcional a través de su estructura única en 3D de "ladrillo y mortero" y su "mecanismo de deslizamiento de tabletas".

Objetivo del estudio:

  • Para diseñar un nuevo vidrio laminado bioinspirado que replica las características estructurales del nacre natural.
  • Mejorar la dureza y la resistencia al impacto del vidrio mediante la incorporación de un "mecanismo de deslizamiento de tabletas".
  • Para crear un material de vidrio de alto rendimiento adecuado para aplicaciones exigentes.

Principales métodos:

  • Diseñó una arquitectura 3D "de ladrillo y mortero" utilizando capas intermedias de elastómero termoplástico transparente.
  • Imitó la estructura jerárquica y el "mecanismo de deslizamiento de tabletas" de la nácar natural.
  • Fabricado y probado el vidrio parecido al nacre para la fuerza, rigidez y resistencia al impacto.

Principales resultados:

  • El vidrio bioinspirado reprodujo con éxito el "mecanismo de deslizamiento de tabletas", permitiendo deformaciones no lineales de gran volumen.
  • Alcanza una resistencia al impacto 2-3 veces mayor en comparación con el vidrio laminado y templado convencional.
  • Mantiene altos niveles de resistencia y rigidez comparables al vidrio tradicional.

Conclusiones:

  • El vidrio inspirado en el nacre demuestra un enfoque biomimético altamente efectivo para superar la fragilidad del vidrio.
  • El "mecanismo de deslizamiento de la tableta" es un factor crítico para lograr una dureza superior y resistencia al impacto.
  • Este nuevo material ofrece una vía prometedora para desarrollar productos de vidrio significativamente más resistentes y seguros.