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BRIEF REPORTSNo Access

SELF-ASSEMBLY OF THREE-DIMENSIONAL NANOPOROUS CONTAINERS

Department of Chemical and Biomolecular Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, USA

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Department of Chemical and Biomolecular Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, USA

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DAVID H. GRACIAS

Department of Chemical and Biomolecular Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, USA

Corresponding author.

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https://doi.org/10.1142/S1793292009001447Cited by:13 (Source: Crossref)

Abstract

We describe a strategy to construct three-dimensional (3D) containers with nanoporous walls by the self-assembly of lithographically patterned two-dimensional cruciforms with solder hinges. The first step involves fabricating two-dimensional (2D) cruciforms composed of six unlinked patterns: each pattern has an open window. The second step entails photolithographic patterning of solder hinges that connect the cruciform. The third step involves the deposition of polystyrene particles within the windows and the subsequent electrodeposition of metal in the voids between the polystyrene particles. Following the dissolution of the particles, the cruciforms are released from the substrate and heated above the melting point of the solder causing the cruciforms to spontaneously fold up into 3D cubic containers with nanoporous walls. We believe these 3D containers with nanoporous side walls are promising for molecular separations and cell-based therapies.

Keywords:

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Vol. 04, No. 01

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History

Received 13 November 2008

Revised 16 December 2008

Keywords