Figure 3
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13068-015-0259-2/MediaObjects/13068_2015_259_Fig3_HTML.gif)
Adsorption of intact and mutant Xyl10As onto the cellulose nanocrystal films. Enzyme solution (250 μM) in 50 mM sodium acetate buffer (pH 5.0) was added into the QCM-D flow cell at a flow rate of 50 μL/min for 10 min. The frequency change due to adsorption on cellulose nanocrystal film was recorded and converted into adsorbed mass density (μg/cm2).