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. Author manuscript; available in PMC: 2021 Apr 20.
Published in final edited form as: Hear Res. 2016 Mar 16;340:191–203. doi: 10.1016/j.heares.2016.03.005

Table 1.

Mean maximum normalized displacement measured by Digital Opto-Electronic Holography (Standard Deviation).

Scaffold (circumferential × radial) Frequency tested
400 Hz
1000 Hz
3000 Hz
6000 Hz
8 × 8 16 × 16 8 × 8 16 × 16 8 × 8 16 × 16 8 × 8 16 × 16
PDMS (n = 3) 1.88 (0.41) 1.30 (0.09) 0.44 (0.03) 0.37 (0.13) 0.14 (0.06) 0.11 (0.01) 0.010 (0.005) 0.009 (0.002)
PLA (n = 3) 5.66 (1.83) 6.40 (1.7) 1.25 (0.41) 1.64 (0.78) 0.27 (0.05) 0.40 (0.05) 0.033 (0.011) 0.060 (0.002)
PCL (n = 3) 4.05 (1.47) 4.08 (1.78) 1.41 (0.53) 3.11 (3.13) 0.41 (0.07) 0.38 (0.04)   0.03 (0.007) 0.130 (0.110)
Temporalis Fascia (n = 3) 4.63 (3.37) 0.78 (0.49) 0.15 (0.16) 0.037 (0.039)
Human TM (n = 3) 0.94 (0.60) 1.12 (0.91) **0.09 (0.09) 0.082 (0.032)
*

The units of normalized displacement are μm/Pa.

**

4000 Hz was used for human TM because 3000 Hz is associated with a narrow-band stimulus artifact.

Note: Statistically significant inverse correlation between frequency and maximum displacement: 8 × 8 PDMS (p < 0.0001), 8 × 8 PLA (p < 0.0001), 8 × 8 PCL (p < 0.0001); 16 × 16 PDMS (p < 0.0001), 16 × 16 PLA (p < 0.0001), 16 × 16 CL (p < 0.0003); fascia (p < 0.0001) and human TM (p < 0.0045).