Reversible superhydrophilicity and superhydrophobicity on a lotus-leaf pattern

Al De Leon, Rigoberto C. Advincula

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

A facile approach of fabricating a temperature-responsive coating capable of switching reversibly from being superhydrophobic to superhydrophilic is presented. The approach combines micromolding, layer-by-layer assembly of the polymer macroinitiators, and surface-initiated polymerization. Changing between superhydrophobicity and superhydrophilicity depends heavily on the surface roughness and the switching of the surface energy levels. In this study, surface roughness was introduced by replicating the surface morphology of a lotus leaf. The switching of surface energy levels was made possible by grafting a temperature-responsive polymer brush. Wetting studies reveal that the reported approach not only replicates nature but also improves its property by making it responsive to stimulus.

Original languageEnglish
Pages (from-to)22666-22672
Number of pages7
JournalACS Applied Materials and Interfaces
Volume6
Issue number24
DOIs
Publication statusPublished - 2014 Dec 24
Externally publishedYes

Keywords

  • biomimetics
  • nature-inspired
  • stimuli-responsive
  • superhydrophilic
  • superhydrophobic

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Reversible superhydrophilicity and superhydrophobicity on a lotus-leaf pattern'. Together they form a unique fingerprint.

  • Cite this