Protein Chemistry. Structure, Properties, Research Methods - Shendryk A.N. 2022

Methods for Experimental Study of Protein Structure
Protein Separation Methods
Experimental Electrophoresis Methods - Cellulose Acetate Strip Electrophoresis

Many biological macromolecules are adsorbed onto the Cellulose contained in paper via cellulose hydroxyl groups. This adsorption impedes the movement of charged macromolecules along the electric field lines, causing streaking or tailing of spots and bands, which impairs Separation. This issue can be avoided by using a cellulose acetate membrane instead of paper, since the majority of hydroxyl groups in cellulose acetate are replaced by acetate groups that do not exhibit such pronounced adsorption properties. In addition to improving separation, this approach also accelerates the process and allows The Use of lower voltages. Because the spots are more compact, the substance within them is more concentrated and thus easier to analyze. The low adsorption capacity of cellulose acetate also results in a lower Background during staining, thereby increasing the sensitivity of the method.

In terms of ease of handling and separation efficiency, cellulose acetate is unsurpassed. However, when exceptionally high-resolution separation is required, gel Electrophoresis should be the method of choice. Cellulose acetate strips are widely used in clinical laboratories for the quantitative analysis of Blood Proteins.



Last update: 06/08/2026

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