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Hierarchical self-assembly of complex polyhedral microcontainers.


ABSTRACT: The concept of self-assembly of a two-dimensional (2D) template to a three-dimensional (3D) structure has been suggested as a strategy to enable highly parallel fabrication of complex, patterned microstructures. We have previously studied the surface tension based self-assembly of patterned, microscale polyhedral containers (cubes, square pyramids and tetrahedral frusta). In this paper, we describe the observed hierarchical self-assembly of more complex, patterned polyhedral containers in the form of regular dodecahedra and octahedra. The hierarchical design methodology, combined with the use of self-correction mechanisms, was found to greatly reduce the propagation of self-assembly error that occurs in these more complex systems. It is a highly effective way to mass-produce patterned, complex 3D structures on the microscale and could also facilitate encapsulation of cargo in a parallel and cost-effective manner. Furthermore, the behavior that we have observed may be useful in the assembly of complex systems with large numbers of components.

SUBMITTER: Filipiak DJ 

PROVIDER: S-EPMC2740998 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature

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Hierarchical self-assembly of complex polyhedral microcontainers.

Filipiak David J DJ   Azam Anum A   Leong Timothy G TG   Gracias David H DH  

Journal of micromechanics and microengineering : structures, devices, and systems 20090701 7


The concept of self-assembly of a two-dimensional (2D) template to a three-dimensional (3D) structure has been suggested as a strategy to enable highly parallel fabrication of complex, patterned microstructures. We have previously studied the surface tension based self-assembly of patterned, microscale polyhedral containers (cubes, square pyramids and tetrahedral frusta). In this paper, we describe the observed hierarchical self-assembly of more complex, patterned polyhedral containers in the fo  ...[more]

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