Microfluidics and Nanofluidics

, Volume 11, Issue 3, pp 307–316

Aqueous droplet manipulation by optically induced Marangoni circulation

Research Paper

DOI: 10.1007/s10404-011-0797-2

Cite this article as:
Hu, W. & Ohta, A.T. Microfluid Nanofluid (2011) 11: 307. doi:10.1007/s10404-011-0797-2


The manipulation of picoliter droplets is demonstrated using optically induced microscale circulatory flows. The circulation results from Marangoni effects induced by optical heating from light patterns created by a computer projector. Manipulation of single droplets and parallel manipulation of multiple droplets are achieved with induced forces of up to 1 nN and an average resolution of 146.5 μm.


Marangoni forceThermocapillary flowDroplet manipulation

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.Department of Electrical EngineeringUniversity of Hawaii at ManoaHonoluluUSA