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

Mechanical Protein Functions01:58

Mechanical Protein Functions

5.8K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
5.8K
Machines01:19

Machines

614
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...
614
The Movement of Organelles and Vesicles01:43

The Movement of Organelles and Vesicles

6.9K
In eukaryotic cells,  cytoskeletal filaments such as actin, microtubules, and intermediate filaments form a mesh-like cytoskeletal network. These filaments serve as tracks for transporting cellular cargo. Specialized motor proteins use the chemical energy stored in adenosine triphosphate (ATP) for this transport. During interphase, microtubules are polarized, with the plus-end towards the cell periphery and the minus-end towards the cell center. Two microtubule-associated motor proteins,...
6.9K
Chemistry of the Cell02:58

Chemistry of the Cell

49.3K
The cell is chemically composed of water, organic molecules and inorganic ions.
Water
The polarity of the water molecule and its resulting hydrogen bonding makes water a unique substance with special properties that are intimately tied to the processes of life. Life originally evolved in an aqueous environment, and most of an organism’s cellular chemistry and metabolism occur inside the aqueous contents of the cell’s cytoplasm. Special properties of water are its high heat capacity...
49.3K
ATP and Macromolecule Synthesis01:28

ATP and Macromolecule Synthesis

7.1K
Biological macromolecules are organic compounds, predominantly composed of carbon atoms. The carbon atoms are covalently bonded with hydrogen, oxygen, nitrogen, and other minor elements. There are four major biological macromolecule classes: carbohydrates, lipids, proteins, and nucleic acids.
Most macromolecules are composed of single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
Conversion of...
7.1K
Chemiosmosis01:32

Chemiosmosis

115.7K
Oxidative phosphorylation is a highly efficient process that generates large amounts of adenosine triphosphate (ATP), the basic unit of energy that drives many cellular processes. Oxidative phosphorylation involves two processes— the electron transport chain and chemiosmosis.
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons...
115.7K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Macroscopic Convective Fluid Flows Arising From Binding of Ions and Small Molecules to Proteins.

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

Effects of crowding and enzyme-driven active fluctuations on particle correlations in colloidal suspensions.

Physical review. E·2026
Same author

Emergent Nonlinearity in Active Molecular Chemotaxis.

ACS nano·2026
Same author

Chemotaxis of ATPase-Powered Nanoparticles up Extra- and Intracellular ATP Gradients.

Nano letters·2026
Same author

Nonequilibrium surfactant partitioning into microdroplets generates local phase inversion conditions and interfacial instability.

Soft matter·2026
Same author

Enzyme decorated microbubbles as self-propelling motors.

Journal of physics. Condensed matter : an Institute of Physics journal·2026

Video Experimental Relacionado

Updated: Mar 2, 2026

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
08:40

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

12.1K

Moléculas y máquinas propulsadas químicamente

Krishna Kanti Dey1, Ayusman Sen2

  • 1Department of Physics, Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar 382355, Gujarat, India.

Journal of the American Chemical Society
|May 12, 2017
PubMed
Resumen
Este resumen es generado por máquina.

La materia activa sintética, imitando los sistemas biológicos, convierte la energía química en movimiento para la nanomaquinaria y la detección. Los avances en los motores autónomos de micro y nanoescala permiten nuevas aplicaciones.

Más Videos Relacionados

Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment
09:34

Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment

Published on: July 12, 2016

10.0K
Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
08:04

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

7.6K

Videos de Experimentos Relacionados

Last Updated: Mar 2, 2026

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
08:40

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

12.1K
Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment
09:34

Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment

Published on: July 12, 2016

10.0K
Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
08:04

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

7.6K

Área de la Ciencia:

  • Sistemas de no equilibrio biomimético
  • Materia activa sintética
  • Ciencia e ingeniería a nanoescala

Sus antecedentes:

  • La materia activa sintética transduce la energía química en movimiento mecánico, creando sistemas de no equilibrio biomimético.
  • Estos sistemas son de interés significativo debido a las aplicaciones potenciales en la nano maquinaria, el ensamblaje a nano escala, la fluídica y la detección química / bioquímica.
  • Los avances recientes han superado los desafíos en la generación de motilidad a micro y nanoescala, lo que lleva a motores y bombas autónomos.

Objetivo del estudio:

  • Esta perspectiva revisa los avances en los sistemas móviles impulsados por catalizadores.
  • Describe el progreso en el diseño del motor / bomba, los mecanismos de propulsión, el control direccional y la comunicación intermotriz para el comportamiento colectivo.
  • La revisión analiza las direcciones futuras de la investigación y los principios de diseño para aplicaciones prácticas.

Principales métodos:

  • Se centra en la materia activa sintética catalizada.
  • Revisa la literatura existente sobre el diseño del motor/bomba y los mecanismos de propulsión.
  • Examina los estudios sobre el control direccional y el comportamiento colectivo a través de la comunicación intermotora.

Principales resultados:

  • Se han logrado avances significativos en el diseño de motores y bombas autónomos a micro y nanoescala.
  • Se han desarrollado varios mecanismos de propulsión y estrategias para el control direccional.
  • Las investigaciones emergentes demuestran que la comunicación intermotora conduce a comportamientos colectivos.

Conclusiones:

  • La materia activa alimentada catalíticamente representa un campo que avanza rápidamente con una motilidad demostrada a micro y nanoescala.
  • Las direcciones futuras incluyen abordar cuestiones fundamentales y establecer principios de diseño para aplicaciones prácticas.
  • El desarrollo de estos sistemas es prometedor para diversas aplicaciones tecnológicas.