Apparatus and methods employing liquid-impregnated surfaces

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United States of America Patent

PATENT NO 11492500
APP PUB NO 20180072895A1
SERIAL NO

15498437

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Abstract

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In certain embodiments, the invention is directed to apparatus comprising a liquid-impregnated surface, said surface comprising an impregnating liquid and a matrix of solid features spaced sufficiently close to stably contain the impregnating liquid therebetween or therewithin, and methods thereof. In some embodiments, one or both of the following holds: (i) 0<ϕ≤0.25, where ϕ is a representative fraction of the projected surface area of the liquid-impregnated surface corresponding to non-submerged solid at equilibrium; and (ii) Sow(a)<0, where Sow(a) is spreading coefficient, defined as γwa−γwo−γoa, where γ is the interfacial tension between the two phases designated by subscripts w, a, and o, where w is water, a is air, and o is the impregnating liquid.

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Patent Owner(s)

  • MASSACHUSETTS INSTITUTE OF TECHNOLOGY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dhiman, Rajeev Pleasanton, US 40 643
Smith, J David Arlington, US 31 518
Varanasi, Kripa K Lexington, US 82 887

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