title: Vapour processed self-rolled poly(dimethylsiloxane) microcapillaries form microfluidic devices with engineered inner surface.
abstract: We propose a microfluidics device whose main functional part consists of a microcapillary produced by the self-rolling of a thin poly(dimethylsiloxane) film. Rolling is caused by inhomogeneous swelling of the film, pre-treated by oxygen plasma, in the vapour of chloroform. The capillaries are integrated with external electrical circuits by co-rolling electrodes and micro-resistors. The local control of temperature in the tubes by Joule heating is illustrated via the rate of an intra-tubular chemiluminescent reaction. The novel tubes with engineered inner structure can find numerous advanced applications such as functional elements of integrated microfluidics circuits.
authors.affiliation: Universidad Nacional de Colombia Bogota, Carrera 45 No 26-85, Colombia.
authors.forename: Laura Piedad Chia
authors.initials: LP
authors.lastname: Gómez
authors.forename: Patrick
authors.initials: P
authors.lastname: Bollgruen
authors.forename: Aleksandr I
authors.initials: AI
authors.lastname: Egunov
authors.forename: Dario
authors.initials: D
authors.lastname: Mager
authors.forename: Florent
authors.initials: F
authors.lastname: Malloggi
authors.forename: Jan G
authors.initials: JG
authors.lastname: Korvink
authors.forename: Valeriy A
authors.initials: VA
authors.lastname: Luchnikov