A practical fabrication method of the gecko-inspired easy-removal skin adhesives

Q. Liu

    Research output: Contribution to journalArticleAcademicpeer-review

    79 Downloads (Pure)

    Abstract

    Easy-removal skin adhesives require a robust reversible adhesion. This requirement is addressed in this study with the fabrication of PDMS micro-patterned surfaces that inspired by gecko feet. The design of these gecko-inspired structures were aimed to maximize the ratio between pull-off strength and peel strength. They were fabricated using the laser cutting technology which is typically used for industrial manufacturing applications. Several kinds of PDMS specimens in triangular, square and hexagonal patterns, as well as triangular, square, diamond and circular cross-sections were made. The wetting properties of the gecko-inspired surfaces were evaluated by contact angle measurements. Pull-off strength and peel strength measurements were performed against a silicon skin substitute. Multiple attachments were achieved on a range of preloads.
    Original languageEnglish
    Pages (from-to)66-74
    JournalBioSurface and biotribology
    Volume3
    Issue number2
    DOIs
    Publication statusPublished - Jun 2017

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