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. Author manuscript; available in PMC: 2011 Jan 18.
Published in final edited form as: Langmuir. 2009 Sep 1;25(17):10038–10044. doi: 10.1021/la900966h

Figure 2. Distances between successive transient bonding events (step size) is lowered by longer PEG spacers suggesting higher bond formation rates.

Figure 2

The average step distances between interactions for HuEP microparticles during low site density rolling with direct antibody chemisorption (grey), PEG3400 linkers (black), and PEG10000 linkers (white). P-selectin site density was set at 100 sites/µm2. The step distance is defined as the distance traveled between paused events. * p < 0.05 against each condition (p = 0.000002 for 0.1 dynes/cm2. p = 0.00019 for 1.0 dynes/cm2.)