Design considerations to fabricate multifunctional superomniphobic surfaces: A review

Jaya Verma, Gareth J. Bennett, Saurav Goel

Research output: Journal PublicationReview articlepeer-review

9 Citations (Scopus)

Abstract

A surface possessing repellency to low surface tension liquids e.g., oils and alcohols (superoleophobic) and high surface tension liquids e.g., water (superhydrophobic) is referred to as superomniphobic. Such surfaces are receiving great attention as they can be used in a myriad of industrial and biomedical applications. In this timely review, we discuss the challenges in systematic design and fabrication of superomniphobic surfaces. Particular attention was paid to elucidating the significance of surface energy, roughness and the critical role of re-entrant texture in obtaining the Cassie–Baxter state. We also discussed how hierarchical scales of texture can yield high contact angles and decrease the hysteresis in the contact angle of superomniphobic surfaces by reducing the solid–liquid contact area. On this premise, we discussed design parameters that would allow efficient fabrication of superomniphobic surfaces leading to newer applications and horizons in the field. The review concludes by identifying newer challenges and potential for these surfaces.

Original languageEnglish
Article number111758
JournalVacuum
Volume209
DOIs
Publication statusPublished - Mar 2023
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

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