Massachusetts Institute of Technology

Hyukmin Kwon

Kripa K Varanasi

Rajeev Dhiman

James C Bird

Adam T Paxson

Christopher Jameson Love

Jonathan David Smith

Dieter B Brommer

This invention relates generally to an article that includes a non-wetting surface having a dynamic contact angle of at least about 90&#xb0;. The surface is patterned with macro-scale features configured to induce controlled asymmetry in a liquid film produced by impingement of a droplet onto the surface, thereby reducing time of contact between the droplet and the surface.

Articles for manipulating impinging liquids and methods of manufacturing same

Textured surface for increasing Leidenfrost temperature. The texture comprises of surface features over multiple length scales&#x2014;from micro to nanoscale&#x2014;wherein the features at each length scale have a size, aspect ratio, and spacing selected to increase the Leidenfrost temperature. The structure includes an array of microscale structures disposed on the surface, the structure having size, aspect ratio and spacing selected to increase Leidenfrost temperature. The microscale structures may also include nanoscale structures on their surface to create a hierarchical structure. The structures result in an increased Leidenfrost temperature.

Superwetting surfaces for diminishing leidenfrost effect, methods of making and devices incorporating the same

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Cambridge, MA, United States of America

Hyukmin Kwon