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Assembly of Microparticles to Patterned Trenches Using the Depletion Volume Effect.

ABSTRACT: In this paper, we demonstrate that 20 μm microbeads can be preferentially assembled into substrate trenches of similar width by employing a polymer (depletant) that induces the depletion volume effect (depletion attraction). In previous works, we proved that this strategy is useful to assemble mesoscale parts in a site-specific manner. Here, we show that it is also applicable to assemble functional parts, such as fluorescent particles, into trenches engraved on the surface of two- and three-dimensional template components. A convenient advantage of this strategy is that it is independent of material properties for assembling mesoscale functional components into desired patterns.

SUBMITTER: Mori Y

PROVIDER: S-EPMC6680554 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Assembly of Microparticles to Patterned Trenches Using the Depletion Volume Effect.

Mori Yaoki Y Kawai Ryota R Suzuki Hiroaki H

Micromachines 20190628 7

In this paper, we demonstrate that 20 μm microbeads can be preferentially assembled into substrate trenches of similar width by employing a polymer (depletant) that induces the depletion volume effect (depletion attraction). In previous works, we proved that this strategy is useful to assemble mesoscale parts in a site-specific manner. Here, we show that it is also applicable to assemble functional parts, such as fluorescent particles, into trenches engraved on the surface of two- and three-dime ...[more]

PMID: 31261677

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