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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2003, Vol. 4 Issue (2): 166-169    DOI: 10.1631/jzus.2003.0166
Computer & Electronic Engineering     
Digital speckle pattern interferometric measurement of diffusion coefficients in hydrogels
ZHOU Jin-fang, HAN Yan, ZHANG Xian-min, XU Jian
Department of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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Abstract  The technique of real-time digital speckle pattern interferometry is proposed to study diffusion of surfactants in hydrogel. The diffusion coefficient is simply and directly determined from the interferograms. An example of diffusion coefficient measurement of surfactant in agarose gel demonstrates the usefulness of the method. The results obtained are compared with the theoretical simulating values.

Key words： Hydrogel      Diffusion coefficient      Speckle pattern interferometry      Surfactant     
Received: 10 January 2002     
CLC:  O436.1  
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ZHOU Jin-fang
HAN Yan
ZHANG Xian-min
XU Jian
Cite this article:

ZHOU Jin-fang, HAN Yan, ZHANG Xian-min, XU Jian. Digital speckle pattern interferometric measurement of diffusion coefficients in hydrogels. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2003, 4(2): 166-169.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2003.0166     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2003/V4/I2/166

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