Figure 1From: Mapping out the structural changes of natural and pretreated plant cell wall surfaces by atomic force microscopy single molecular recognition imagingSchematics of AFM recognition imaging. (a) AFM tip modification and recognition imaging process; (b) topography and recognition signal division by PicoTREC controller; (c) example of topography and recognition images generated by separated signals. Yellow strips: sketch of crystalline cellulose; black strips: recognition signal of crystalline cellulose in topography image; green marks: other components which do not have specific interactions with functionalized AFM tip and show no recognition signals in the recognition image.Back to article page