We have studied individual pairs of surfactant-monolayer coated aqueous droplets which adhere at an interface to form a droplet interface bilayer (DIB). Droplets are generated and manipulated by micropipet. The use of 1-glyceryl monooleate (GMO) as surfactant dissolved in squalene medium provides droplet pairs which have a large contact zone, the size and area of which is amenable to an optical microscopy study. We report investigations of the variability of the contact angle of the DIB as a function of the nature and concentration of ions present in the aqueous microdroplet. Specific anion effect has been observed. Possible explanations for the observed effects will be explored.

Interactions of osmolytes with neutral lipid membrane

244th National Meeting (2012)

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