Table 1.

Numerical values of particle size and surface charge of bPEI‐AuNPs measured by dynamic light scattering

Nanoparticles	HAuCl4·3H2O/bPEI	Particle size [nm]	Surface charge [mV]
bPEI‐AuNP‐12.5	0.25	18.50 ± 0.28	33.9 ± 5.6
bPEI‐AuNP‐25	0.50	18.13 ± 0.62	31.6 ± 13
bPEI‐AuNP‐37.5	0.75	92.75 ± 0.56	48.1 ± 11.3
bPEI‐AuNP‐50	1.00	241.03 ± 0.50	55.4 ± 5.48