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. 2016 Nov 1;111(9):1925–1934. doi: 10.1016/j.bpj.2016.08.051

Figure 3.

Figure 3

Mean adhesion measured through force-distance curves with AFM. An average of 410 ± 38 force-distance curves were analyzed per experimental condition. (a) Mean adhesion for cleaned quartz glass (−0.025 nN ± 0.008 nN). (b) Mean adhesion for silanized quartz glass (12.42 nN ± 1.04 nN). (c) Mean adhesion for silanized quartz glass functionalized with PEG (0.21 nN ± 0.13 nN). (d) Mean adhesion for SuccinylPE bound to PEG (0.56 nN ± 0.26 nN). (e) Mean adhesion of trisNTA bound to PEG (4.16 nN ± 1.15 nN). (f) Mean adhesion of a 2:1 (mol/mol) mixture of SuccinylPE:trisNTA bound to PEG (0.67 nN ± 0.30 nN).