We report on a new technique to control nanoliter aqueous droplet adhesion and coalescence. The thermal Marangoni effect is used to drive droplet motion. Surface-active molecules are used to form adhering boundaries between drops.
© 2008 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.6810) Lasers and laser optics : Thermal effects
(350.0350) Other areas of optics : Other areas of optics
(350.4855) Other areas of optics : Optical tweezers or optical manipulation
S. Dixit and G. Faris, "Optically Controlled Droplet Adhesion and Coalescence: A New and Versatile Microfluidic Technique," in Biomedical Optics, OSA Technical Digest (CD) (Optical Society of America, 2008), paper BTuF59.
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