Solventless ordering of colloidal particles through application of patterned elastomeric stamps under pressure

Kahp Y. Suh; Hyunsik Yoon; Hong H. Lee; Ali Khademhosseini; Robert Langer

doi:10.1063/1.1795362

Solventless ordering of colloidal particles through application of patterned elastomeric stamps under pressure

Kahp Y. Suh, Hyunsik Yoon, Hong H. Lee, Ali Khademhosseini, Robert Langer

Dept. of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The ordering of polystyrene beads which occurs when pressure is applied to the colloidal particles between solid substrate was studied. The patterned elastomeric stamp which occurs while maintaining the temperature above the particle's glass transition temperature was analyzed. A simple two-dimensional squeeze flow theory which successfully explained the effects of pressure, temperature, size of beads, and stamp geometries on the ordering times was used for calculating the filling time. It was found that the particles migrate by means of physical pressure under high temperature and not through the action of convective assembly as in evaporating films.

Original language	English
Pages (from-to)	2643-2645
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	13
DOIs	https://doi.org/10.1063/1.1795362
State	Published - 27 Sep 2004

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abstract = "The ordering of polystyrene beads which occurs when pressure is applied to the colloidal particles between solid substrate was studied. The patterned elastomeric stamp which occurs while maintaining the temperature above the particle's glass transition temperature was analyzed. A simple two-dimensional squeeze flow theory which successfully explained the effects of pressure, temperature, size of beads, and stamp geometries on the ordering times was used for calculating the filling time. It was found that the particles migrate by means of physical pressure under high temperature and not through the action of convective assembly as in evaporating films.",

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AU - Yoon, Hyunsik

AU - Lee, Hong H.

AU - Khademhosseini, Ali

AU - Langer, Robert

PY - 2004/9/27

Y1 - 2004/9/27

N2 - The ordering of polystyrene beads which occurs when pressure is applied to the colloidal particles between solid substrate was studied. The patterned elastomeric stamp which occurs while maintaining the temperature above the particle's glass transition temperature was analyzed. A simple two-dimensional squeeze flow theory which successfully explained the effects of pressure, temperature, size of beads, and stamp geometries on the ordering times was used for calculating the filling time. It was found that the particles migrate by means of physical pressure under high temperature and not through the action of convective assembly as in evaporating films.

AB - The ordering of polystyrene beads which occurs when pressure is applied to the colloidal particles between solid substrate was studied. The patterned elastomeric stamp which occurs while maintaining the temperature above the particle's glass transition temperature was analyzed. A simple two-dimensional squeeze flow theory which successfully explained the effects of pressure, temperature, size of beads, and stamp geometries on the ordering times was used for calculating the filling time. It was found that the particles migrate by means of physical pressure under high temperature and not through the action of convective assembly as in evaporating films.

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JF - Applied Physics Letters

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ER -

Solventless ordering of colloidal particles through application of patterned elastomeric stamps under pressure

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