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Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
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Dissecciones: agregados autoensamblados que reconfiguran espontáneamente sus estructuras cuando su entorno cambia.

Chengde Mao1, Venkat R Thalladi, Daniel B Wolfe

  • 1Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA.

Journal of the American Chemical Society
|December 6, 2002
PubMed
Resumen

Los investigadores desarrollaron estructuras adaptativas utilizando el autoensamblaje reconfigurable a mesoscala. Los objetos a escala milimétrica se autoensamblan en dos estructuras distintas basadas en la densidad de la fase acuosa.

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Área de la Ciencia:

  • Ciencia de los materiales Ciencia de los materiales.
  • Química supramolecular de las moléculas.
  • Física de la materia blanda Física de la materia blanda

Sus antecedentes:

  • Las estructuras adaptativas ofrecen una funcionalidad dinámica.
  • El autoensamblaje reconfigurable es una estrategia clave para crear materiales complejos.
  • Los sistemas de mesoscala cierran la brecha entre las escalas molecular y macroscópica.

Objetivo del estudio:

  • Presentar una nueva estrategia para el diseño de estructuras adaptativas.
  • Para demostrar el autoensamblaje reconfigurable de objetos a escala milimétrica.
  • Para controlar la formación de agregados basados en estímulos ambientales.

Principales métodos:

  • Diseño de bloques de construcción a escala milimétrica.
  • Utilizando la interfaz entre las fases acuosa y perfluorodecalina.
  • Ajuste de la densidad de la fase acuosa para el autoensamblaje directo.

Principales resultados:

  • Autoensamblaje exitoso en dos agregados regulares y distintos.
  • Demostración de la reconfiguración estímulo-respuesta.
  • El control de la morfología agregada se logra mediante la alteración de la densidad de la solución.

Conclusiones:

  • La estrategia propuesta permite la creación de materiales adaptativos.
  • El autoensamblaje a mesoscala ofrece una plataforma versátil para estructuras sensibles.
  • El autoensamblaje dependiente de la densidad proporciona un mecanismo sintonizable para el control estructural.