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Advanced Materials

Cutting into Solids with Micropatterned Gels

Authors

  • S. K. Smoukov,

    1. Department of Chemical Engineering and The Northwestern Institute on Complex Systems, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • K. J. M. Bishop,

    1. Department of Chemical Engineering and The Northwestern Institute on Complex Systems, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • R. Klajn,

    1. Department of Chemical Engineering and The Northwestern Institute on Complex Systems, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • C. J. Campbell,

    1. Department of Chemical Engineering and The Northwestern Institute on Complex Systems, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • B. A. Grzybowski

    1. Department of Chemical Engineering and The Northwestern Institute on Complex Systems, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • B.G. gratefully acknowledges financial support from Northwestern University start-up funds and from the Camille and Henry Dreyfus New Faculty Awards Program. K.B. and C.C. were supported in part by the NSF-IGERT program “Dynamics of Complex Systems in Science and Engineering” (DGE-9987577).

Abstract

Hydrogel stamps can microstructure solid surfaces, i.e., modify the surface topology of metals, glasses, and crystals. It is demonstrated that stamps soaked in an appropriate etchant can remove material with micrometer-scale precision. The Figure shows an array of concentric circles etched in glass using the immersion wet stamping process described (scale bar: 500 μm).

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