Quantification of Internalized Silica Nanoparticles via STED Microscopy

Table 2

Sedimentation and diffusion simulation results.

Particles/cluster	Deposited
	1		3		4
Particle diameter	Fraction (%)	Particle number (cm^−2)	Fraction (%)	Particle number (cm^−2)	Fraction (%)	Particle number (cm^−2)
25 nm	26.5		19.4		18.3
85 nm	20.4		21.3		20.8

Results of the ISDD sedimentation model for SNPs with two different diameters (25 and 85 nm) in 1 mL solution with a mass concentration corresponding to 9.2 × 10¹⁰ particles mL⁻¹. Simulation results for deposited particles are given as fraction of delivered particles (%) and particle number of deposited particles per cm². The number of deposited particles displays little dependency on the number of particles per cluster for small cluster sizes and is in the same range for both particle sizes.