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. Author manuscript; available in PMC: 2015 Apr 14.
Published in final edited form as: J Biotechnol. 2007 Oct 5;133(3):403–411. doi: 10.1016/j.jbiotec.2007.09.018

Fig. 1.

Fig. 1

Comparison of different enzyme immobilization methods. (a) Random immobilization via covalent binding; (b) random adsorptive binding; (c) random physical adsorption within a 3D gel structure; (d) novel approach for site-directed immobilization of an enzyme via the S-layer self-assembly technique, allowing orientated and dense surface display of the enzyme in its native conformation and ensuring accessibility for the substrate; (e) legend.