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Keywords:

  • biomimetics;
  • geckos;
  • dry adhesive;
  • skin patches;
  • ubiquitous healthcare
Thumbnail image of graphical abstract

Modulus-tunable composite micropillars are presented by combining replica molding and selective inking for skin adhesive patch in “ubiquitous”-health diagnostic devices. Inspired from hierarchical hairs in the gecko's toe pad, a simple method is presented to form composite polydimethylsiloxane (PDMS) micropillars that are highly adhesive (∼1.8 N cm−2) and mechanically robust (∼30 cycles).