The Promotion of Human Neural Stem Cells Adhesion Using Bioinspired Poly(norepinephrine) Nanoscale Coating

Table 1

RMS roughness values of pNE-modified surfaces determined by AFM analysis.

	PTFE (nm)	PDMS (nm)	Polystyrene (nm)	Glass (nm)
Unmodified	1.239±0.021	0.091±0.006	0.138±0.011	0.257±0.012
pNE	3.391±0.007^∗	0.687±0.032^∗	0.709±0.054^∗	1.119±0.038^∗

The symbol ∗ indicates significant differences compared to each unmodified substrate (𝑃<0.001).