Table 1.

Frequency shifts of QCM and weights of adhered SH-SY5Y cells on the electrodes decorated with HA-modified surface for 24 to 72 hours of cell incubation.

Cell adhesion	ΔF (×103 Hz)	Δm (×103 ng)
DMEM/F12 medium
24 hrs	−3.68 ± 0.42	1.13 ± 0.13
48 hrs	−4.70 ± 0.48	1.44 ± 0.15
72 hrs	−4.93 ± 0.69	1.51 ± 0.21
DMEM/F12 medium-PC12 CM
24 hrs	−6.30 ± 1.35	1.94 ± 0.42∗
48 hrs	−10.83 ± 0.58	3.33 ± 0.18∗
72 hrs	−10.47 ± 0.27	3.22 ± 0.08∗

Data are expressed as mean ± standard error, n = 10, ^∗ p < 0.05 (t-test).