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Nanofabricación 3D por deposición volumétrica y contracción controlada de andamios con patrones
Daniel Oran1, Samuel G Rodriques1,2, Ruixuan Gao1
1MIT Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Science (New York, N.Y.)
|December 15, 2018
Resumen
Los investigadores desarrollaron la fabricación por implosión (ImpFab) para el ensamblaje directo de nanomateriales en 3D. Este nuevo método permite una disposición precisa en 3D de metales, semiconductores y biomoléculas con resolución a nanoescala.
Área de la Ciencia:
- Ciencias de los materiales
- Nanotecnología
- Fabricación aditiva
Sus antecedentes:
- La litografía convencional está restringida a la fabricación 2D capa por capa.
- La creación de nanoestructuras 3D complejas sigue siendo un desafío significativo en la nanofabricación.
Objetivo del estudio:
- Introducir un nuevo método para el ensamblaje directo de nanomateriales 3D.
- Para permitir la fabricación de nanoestructuras complejas en 3D con precisión a nanoescala.
Principales métodos:
- Se utilizan hidrogeles como andamios para la deposición de material volumétrico.
- Se emplean patrones ópticos en 3D, fijación de materiales y contracción/deshidratación controlada.
- Se ha demostrado la fabricación directa de nanoestructuras de plata en 3D mediante deposición volumétrica.
Principales resultados:
- Se han logrado dimensiones de características a nanoescala de hasta decenas de nanómetros.
- Creó con éxito geometrías 3D complejas y no autosuficientes.
- Fabricado nanoestructuras de plata 3D altamente conductoras dentro de un andamio de acrílico.
Conclusiones:
- La fabricación por implosión (ImpFab) ofrece una estrategia versátil para el ensamblaje directo de nanomateriales en 3D.
- El método permite un control preciso de la colocación del material y la geometría 3D.
- ImpFab tiene potencial para aplicaciones en metamateriales ópticos y otros campos avanzados.
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