Strategies for patterning biomolecules with dip-pen nanolithography

Chien-Ching Wu, David N Reinhoudt, Cees Otto, Vinod Subramaniam, Aldrik H Velders

    Research output: Contribution to JournalReview articleAcademicpeer-review

    Abstract

    Dip-pen nanolithography (DPN) is an atomic force microscopy (AFM)-based lithography technique, which has the ability to fabricate patterns with a feature size down to approximately 15 nm using both top-down and bottom-up approaches. DPN utilizes the water meniscus formed between an AFM tip and a substrate to transfer ink molecules onto surfaces. A major application of this technique is the fabrication of micro- and nano-arrays of patterned biomolecules. To achieve this goal, a variety of chemical approaches has been used. This review concisely describes the development of DPN in the past decade and presents the related chemical strategies that have been reported to fabricate biomolecular patterns with DPN at micrometer and nanometer scale, classified into direct- and indirect DPN methodologies, discussing tip-functionalization strategies as well.

    Original languageEnglish
    Pages (from-to)989-1002
    Number of pages14
    JournalSmall
    Volume7
    Issue number8
    DOIs
    Publication statusPublished - 18 Apr 2011

    Keywords

    • Nanotechnology
    • Pattern Recognition, Automated
    • Journal Article
    • Research Support, Non-U.S. Gov't
    • Review

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