Figure 5.

$Re[CMF(\omega )]$ experimentally determined for (a) PS and (b) $Si{O}_2$ JP particles. The symbols JP, JP-Thiol, and JPCOOH stand, respectively, for plain JPs (PS or $Si{O}_2$ with 100 nm Ti/Au), JPs whom Au side has been alkylated, and JPs that present carboxylate COOH function on their PS or $Si{O}_2$ side. The symbols JPProteinOn stand for JPs that have been selectively covalently coupled with fibronectin on the specified side. Experimental values are represented by dots for all tested frequencies whereas fitted functions are represented in dashed lines.