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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 7 — Jul. 27, 2011

Quantitative imaging of mixing dynamics in microfluidic droplets using two-photon fluorescence lifetime imaging

Yan Zeng, Liguo Jiang, Wei Zheng, Dong Li, Shuhuai Yao, and Jianan Y. Qu  »View Author Affiliations


Optics Letters, Vol. 36, Issue 12, pp. 2236-2238 (2011)
http://dx.doi.org/10.1364/OL.36.002236


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Abstract

Droplet-based microfluidic systems enable miniaturization of chemical reactions in femtoliter to picoliter volume compartments. Quantifying mixing dynamics of the reagents in droplets is critical to determine the system performance. In this Letter, we developed a two-photon excitation fluorescence lifetime imaging technique to quantitatively image the mixing dynamics in microfluidic droplets. A cross/autocorrelation method was used to reconstruct a high-quality fluorescence lifetime image of the droplet. The fluorescence decay was analyzed for accurate determination of the mixing ratio at each pixel of the image.

© 2011 Optical Society of America

OCIS Codes
(190.4180) Nonlinear optics : Multiphoton processes
(180.4315) Microscopy : Nonlinear microscopy
(110.3010) Imaging systems : Image reconstruction techniques

ToC Category:
Imaging Systems

History
Original Manuscript: March 9, 2011
Revised Manuscript: May 6, 2011
Manuscript Accepted: May 11, 2011
Published: June 7, 2011

Virtual Issues
Vol. 6, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Yan Zeng, Liguo Jiang, Wei Zheng, Dong Li, Shuhuai Yao, and Jianan Y. Qu, "Quantitative imaging of mixing dynamics in microfluidic droplets using two-photon fluorescence lifetime imaging," Opt. Lett. 36, 2236-2238 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-36-12-2236


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