Optically fabricated and controlled microtool as a mobile heat source in microfluidics

Einstom Engay; Ada-Ioana Bunea; Andrew Rafael Bañas; Manto Chouliara; Jesper Glückstad

doi:10.1117/12.2325359

8 October 2018 Optically fabricated and controlled microtool as a mobile heat source in microfluidics

Einstom Engay, Ada-Ioana Bunea, Andrew Rafael Bañas, Manto Chouliara, Jesper Glückstad

Author Affiliations +

Proceedings Volume 10804, Advanced Manufacturing Technologies for Micro- and Nanosystems in Security and Defence; 108040K (2018) https://doi.org/10.1117/12.2325359
Event: SPIE Security + Defence, 2018, Berlin, Germany

Abstract

Microfluidic systems have gained much interest in the past decade as they tremendously reduce sample volume requirements for investigating different phenomena and for various medical, pharmaceutical and defense applications. Rapid heat transfer and efficient diffusive material transport are among the benefits of miniaturization. These have been achieved so far by tediously designing and fabricating application-specific microfluidic chambers or by employing microdevices that can be difficult to integrate in microfluidic systems. In this work, we present the fabrication and functionalization via two-photon polymerization and physical vapor deposition of microstructures that serve as heat sources in microfluidic devices upon laser illumination. In contrast to other existing methods that rely on photo-thermal effects, our microtools are amenable to optical manipulation and can be actuated in specific locations where heat generation is desired. Heating effects manifest in the presence of a temperature gradient, induced fluid flow and the formation of microbubbles.

Conference Presentation

Citation Download Citation

Einstom Engay, Ada-Ioana Bunea, Andrew Rafael Bañas, Manto Chouliara, and Jesper Glückstad "Optically fabricated and controlled microtool as a mobile heat source in microfluidics", Proc. SPIE 10804, Advanced Manufacturing Technologies for Micro- and Nanosystems in Security and Defence, 108040K (8 October 2018); https://doi.org/10.1117/12.2325359

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