Strategies for patterning biomolecules with dip-pen nanolithography

C.C. Wu, David Reinhoudt, Cornelis Otto, Vinod Subramaniam, Aldrik Velders

Research output: Contribution to journalArticleAcademicpeer-review

87 Citations (Scopus)

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 paterns 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 - 2011

Keywords

  • METIS-272216
  • IR-92558

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