Superomniphobic Surfaces: Design & Applications

A.K. Kota
Colorado State University,
United States

Keywords: superomniphobic surface

Summary:

Recent years have seen significant advances in the understanding of super-repellent surfaces, i.e., surfaces with extreme repellency to liquids. Surfaces with extreme repellency to high surface tension liquids like water are considered to be superhydrophobic. Surfaces with extreme repellency to low surface tension liquids like oils and alcohols are considered to be superoleophobic. Surfaces that are both superhydrophobic and superoleophobic are considered superomniphobic, i.e., extremely repellent to virtually any liquid. In this presentation, the fundamental chemical and physical principles of designing superomniphobic surfaces will be discussed. Based on these fundamental principles, novel applications of superomniphobic surfaces in chemical shielding, inexpensive surface tension sensors, enhanced hemocompatibility, and tunable wettability will be discussed.