Sphere Fluidics Limited

Alexandra Clay

Xin Li

Clive Adrian Smith

Frank F Craig

Xin Liu

Colin Pilkington

A surfactant of formula (I):A-(L)-(C)-(L)-X  (I) wherein A is a perfluoropolyether; Lis CONR', wherein R' is selected from H and Calkyl; a is 0 or 1; b is 0 or an integer between 1 and 10; Lis a linking group; c is 0 or 1; and X is a charged group.

Surfactant

The present invention provides a surfactant having a formula selected from the group consisting of: B&#x2014;((X)&#x2014;(CH)-A)(VI), (A-(CH)&#x2014;(X)&#x2014;B&#x2014;(X)&#x2014;(CH)-A)(IV), (A-(CH)&#x2014;(X)&#x2014;B)(V), and (B)&#x2014;(X)&#x2014;(CH)-A (VII), wherein A is a perfluoropolyether; a is a positive integer; X is either a covalent bond or a linking group; x is a positive integer; B is a polyalkylene oxide unit; n is a positive integer greater than 1 and, in compounds comprising more than one A, B, X, a and x, each may be the same or different. The present invention also relates to methods of making such surfactants, uses of such surfactants and emulsions comprising such surfactants.

Fluorosurfactants

A microfluidic structure for spacing out and aligning entities in an aqueous suspension is provided. The structure comprises: a channel for guiding entities in an aqueous suspension; a first comb of first inlets arranged on a first side of the channel for introducing a spacing medium into the channel; and a second comb of second inlets arranged on a second side of the channel for introducing the spacing medium into the channel; wherein the first side is opposite the second side, and wherein one of the first inlets has a corresponding, respective one of the second inlets at a substantially similar longitudinal position along the channel.

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Babraham, United Kingdom

Alexandra Clay