Peculiarities of diffusion in gels

被引：0
作者：
B. G. Pokusaev
S. P. Karlov
A. V. Vyazmin
D. A. Nekrasov
机构：
[1] Moscow State University of Mechanical Engineering,
来源：
Thermophysics and Aeromechanics | 2013年 / 20卷
关键词：
gels; optical methods; diffusion; nanoparticles; aging; anisotropy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An optical method was applied to study the peculiarities of diffusion in gel: this method provides real-time visualization of spreading of solutes brought into the gel. It was shown that spectral characteristics of reflected light give additional information about nature of diffusive spreading of solutes and about state of the gel. Gels with different densities and lifetime were studied. These parameters have strong influence on the velocity of diffusion. The study demonstrated critical differences for diffusion process in gels with true solutions and with solutions with nanoparticles. Experiments discovered the anisotropy in 3D diffusion of solutes in gels; physical explanation of this phenomenon was proposed.
引用
收藏
页码：749 / 756
页数：7
相关论文
共 41 条
  • [11] Philibert J(1961)Theory of diffusion in gels Biophysical Journal 1 205-213
  • [12] Muhr AH(1998)Solute diffusion within hydrogels Mechanisms and models, Macromolecules 31 8382-8395
  • [13] Blanshard JMV(2011)Modeling of thermal conductivity in hybrid composites made from binding matrix, with orthogonal reinforcement with tubes and with disperse-hardened hollow inclusions Themophysics and Aeromechanics 18 135-150
  • [14] Tan S(2010)Interfacial complexation explains anomalous diffusion in nanofluids Nano Letters 10 665-671
  • [15] Dai H(2004)Immersion tomographic study of the motion of bubbles in a flooded granular bed Theoretical Foundations of Chemical Engng. 38 561-568
  • [16] Wu J(1989)Stability of the displacement front and development of fingering in a porous media Fluid Dynamics 24 739-745
  • [17] Fischer M(2001)Interfacial mass transfer in the liquid-gas system: an optical study Theoretical Foundations of Chemical Engng. 35 227-231
  • [18] Dietzel M(2002)The time evolution of chemo-gravitational convection on a brim meniscus of wetting Physica A 315 236-242
  • [19] Poulikakos D(undefined)undefined undefined undefined undefined-undefined
  • [20] Kosztolowicz T(undefined)undefined undefined undefined undefined-undefined
12345