Synthesis and Physicochemical Characterization of Mesoporous Nanoparticles

Table 3

Particle size and zeta potential of SiNPs as measured by dynamic light scattering (DLS) in deionized water at pH 6.5 (SiNP concentration 150 μg/mL).

Particles	DLS size ± SD; (nm)	PDI	Zeta potential ± SD; (mV)
SiNP25	406±147	0.49	−27.1±0.9
SiNP25C3	386±51	0.41	−28.6±1.3
SiNP25C11	330±49	0.41	−32.8±2.2
SiNP70	253±61	0.4	−22.3±2.5
SiNP70C3	219±17	0.25	−30.3±4.1
SiNP70C11	217±28	0.3	−31.8±0.8
SiNP100	191±23	0.23	−37.6±6.4
SiNP100C3	185±15	0.17	−43.5±2.1
SiNP100C11	190±6	0.17	−39.5±5.8
SiNP170	266±13	0.28	−38.2±1.1
SiNP170C3	319±36	0.34	−45.8±1.1
SiNP170C11	213±10	0.18	−44.0±1.3
SiNP600	709±76	0.4	−40.1±1.7
SiNP600C3	768±126	0.38	−48.0±0.7
SiNP600C11	612±65	0.4	−43.6±1.4