Surface effects at polymeric interfaces in capillary driving process

Ilenia Viola; Anna Zocco; Alessandra Fischetti; Barbara Foglieni; Laura Cremonesi; Maurizio Ferrari; Roberto Cingolani; Giuseppe Gigli

doi:10.1117/12.608302

1 July 2005 Surface effects at polymeric interfaces in capillary driving process (Invited Paper)

Ilenia Viola, Anna Zocco, Alessandra Fischetti, Barbara Foglieni, Laura Cremonesi, Maurizio Ferrari, Roberto Cingolani, Giuseppe Gigli

Author Affiliations +

Proceedings Volume 5836, Smart Sensors, Actuators, and MEMS II; (2005) https://doi.org/10.1117/12.608302
Event: Microtechnologies for the New Millennium 2005, 2005, Sevilla, Spain

Abstract

The growing interest in biological micro-array and Lab-on-Chip (LOC) is justified by the possibility of reducing the sample volume, processing time and costs. By means microfluidics seems to be the prevalent tool for the integration of manifold processes in miniaturized devices. Anyway at a sub-millimeter scale the liquid behavior is affected by geometric confinement and wetting properties. In order to confine the liquid sample inside the LOC buried channels we have performed the sealing by poly(dimethylsiloxane)~(PDMS), a silicon-based bi-component elastomer. The filling dynamics changes at changing of the polymer mixing ratio of the pre-polymer and the curing agent. In fact, a different concentration of cross-linker modifies the elastic, adhesion and wettability properties of the cover-slip

Citation Download Citation

Ilenia Viola, Anna Zocco, Alessandra Fischetti, Barbara Foglieni, Laura Cremonesi, Maurizio Ferrari, Roberto Cingolani, and Giuseppe Gigli "Surface effects at polymeric interfaces in capillary driving process (Invited Paper)", Proc. SPIE 5836, Smart Sensors, Actuators, and MEMS II, (1 July 2005); https://doi.org/10.1117/12.608302

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