Behavior of Double Emulsions in a Cross-Type Optical Separation System

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• 作者：Kyung Heon Lee ; Sang Bok Kim ; Sang Youl Yoon ; Kang Soo Lee ; Jin Ho Jung ; Hyung Jin Sung
• 刊名：Langmuir
• 出版年：2012
• 出版时间：May 15, 2012
• 年：2012
• 卷：28
• 期：19
• 页码：7343-7349
• 全文大小：392K
• 年卷期：v.28,no.19(May 15, 2012)
• ISSN：1520-5827

文摘

The behavior of double emulsions in a cross-type optical particle separation system was studied for different combinations of refractive indices and different inner and outer layer radii. The radii and refractive indices of the double emulsions were easily adjusted by taking advantage of the coflowing geometry of a cross-type optical particle separation device. An analytical expression of the optical forces on a pair of concentric spheres was derived using the photon stream method in the ray optics regime. The predicted trajectories of the double emulsions by the optical force agreed well with the experimental data. This work has potential uses in cell separation by morphometry, drug delivery vehicle, and emulsion-based biomedical applications.