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Proceedings Paper

All-optical microfluidic circuit for biochemical and cellular analysis powered by photoactive nanoparticles
Author(s): Gang L. Liu; Jaeyoun Kim; Luke P. Lee
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Paper Abstract

We have invented a novel all-optical-logic microfluidic system which is automatically controlled only by visible or near infrared light with down to submilliwatt power. No electric power supply, no external or MEMS pump, no tubings or connectors, no microfluidic valves, nor surface patterning are required in our system. Our device only consists of a single-layer PDMS microfluidic chip and newly invented photoactive nanoparticles. Our photoactive nanoparticles are capable of converting optical energy to hydrodynamic energy in fluids. The nanoparticle themselves are biocompatible and can be biofunctionalized. Via these photoactive nanoparticles, we used only light to drive, guide, switch and mix liquid in optofluidic logic circuits with desired speeds and directions. We demonstrated the optofluidic controls in transportation of biomolecules and cells.

Paper Details

Date Published: 13 September 2006
PDF: 8 pages
Proc. SPIE 6329, Optofluidics, 63290J (13 September 2006); doi: 10.1117/12.682540
Show Author Affiliations
Gang L. Liu, Univ. of California, Berkeley (United States)
UCSF/UCB Joint Graduate Group in Bioengineering (United States)
Jaeyoun Kim, UCSF/UCB Joint Graduate Group in Bioengineering (United States)
Luke P. Lee, Univ. of California, Berkeley (United States)
UCSF/UCB Joint Graduate Group in Bioengineering (United States)


Published in SPIE Proceedings Vol. 6329:
Optofluidics
Demetri Psaltis; Yeshaiahu Fainman, Editor(s)

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