Calcium-Induced Volume Transition in Polyacrylate Hydrogels Swollen in Physiological Salt Solutions
نویسندگان
چکیده
Ferenc Horkay,* Peter J. Basser, Anne-Marie Hecht, Erik Geissler 1 Section on Tissue Biophysics and Biomimetics, Laboratory of Integrative and Medical Biophysics, NICHD, National Institutes of Health, 13 South Drive, Bethesda, MD 20892, USA Fax: 301-435-5035; E-mail: [email protected] 2 Laboratoire de Spectrométrie Physique CNRS UMR 5588, Université J. Fourier de Grenoble, B.P. 87, 38402 St Martin d0Hères, France
منابع مشابه
Calcium-Induced Volume Transition in Polyacrylate Hydrogels Swollen in Physiological Salt Solution
Macromol. Biosci. 2002, 2, 207 –213 Full Paper: Calcium ions are introduced to sodium polyacrylate gels swollen in sodium chloride solutions and the volume transition is measured by osmotic and small-angle neutron-scattering. The osmotic pressure is found to depend on the sodium chloride con centration, indicating that calcium preferen tially replaces condensed sodium ions, a result supported...
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Corrcspondence/Reprint request: Dr. Ferenc Horkay, Ph.D .. Section oo Tissue Biophysics and Biomimetics, National Institutes of Health, Bldg. 13, Room 3WJ6B, 13 South Drive, Bethcsda, MD 20892, USA.E-mail:[email protected] Abstract The effect of cations on the osmotic properties of chemically cross-linked sodium polyacrylate hydrogels has been investigated. The variation of the osmotic swell...
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