Table 1 Hydrodynamic size, PDI, ζ potential, Young’s modulus, and surface PEG density of FA-PEG–modified SNCs.

Values are means (n = 3) for hydrodynamic diameter, PDI, ζ potential, and Young’s modulus. Coating of FA-PEG–modified SNCs consists of 10% FA-PEG and 90% mPEG (in molar ratio).

Molar percentage
of TEOS
05102040100
Hydrodynamic
diameter (nm)
202203202205206211
PDI0.120.120.110.070.090.09
ζ potential (mV)−3.5−3.1−3.5−3.3−3.2−2.8
Young’s modulus
(MPa)
0.5625.09108.53224.71459.431184.46
Surface PEG density
(molecules/nm2)
0.940.830.820.880.960.89