. 2016 Feb 16;6:21170. doi: 10.1038/srep21170

Table 1. Particle size and surface charge measurement of different polymeric constituents.

Sample	Particle size^A (d,nm)	Surface charge^B (mV)
PEI-Cdots	9.0 ± 1.1	4.4 ± 1.7
rPEI-Cdots	73.8 ± 0.8	11.9 ± 1.9
fc-rPEI-Cdots	143.1 ± 9.9	25.7 ± 2.3
fc-rPEI-Cdots/siRNA (weight ratio = 15)	174.3 ± 16.0	−9 ± 2.1

(A) Particle size were measured by dynamic light scattering (DLS).

(B) Surface charge was determined by zeta potential.