Figure 3.

Relative elastic moduli of pAAm hydrogels as a function of (a) monomer concentration (%AAm) prepared using 5% 4 nm SiNPs and different concentrations of the chemical crosslinker—0.0625% Bis (white bars) and 0.5% Bis (grey bars) and (b) nanoparticle concentration for 2.5% pAAm (white circles), 5% pAAm (grey squares), and 10% pAAm (black triangles) hydrogels prepared using %C_Bis = 4.76. Data shown are the mean of triplicate measurements ± standard deviation and have been repeated at least three times with similar results.