Table 5 Parameters for fitted power law curves (\(y=a{x}^{b}\)) of elastic moduli \(y\) (Pa) (i) measured and (ii) analytically modelled with respect to body mass \(x\) (kg) or (iii) tip radii \(x\) (mm).

From: Allometric scaling of skin thickness, elasticity, viscoelasticity to mass for micro-medical device translation: from mice, rats, rabbits, pigs to humans

Parameter

a

b

(i) Body mass for various tip radii (measured)

0.18

85704

0.1097

0.315

46881

0.1023

1

4375.2

0.1288

3.15

1380.4

−0.1179

(ii) Body mass for various tip radii (analytical model)

0.001

8.2985 × 106

0.0221

0.01

1.7701 × 106

0.0284

0.1

3.0903 × 105

0.0342

0.18

1.9275 × 105

0.0359

0.315

1.2134 × 105

0.0359

1

45920

0.0359

3.15

17061

0.0359

(iii) Tip radius for various species (measured)

Mouse

672.98

−1.900

Rat

2275.1

−1.186

Rabbit

7943.3

−1.441

Pig (small)

12618

−1.227

Pig (large)

39355

−1.152

Human

3311.3

−1.584

Human (in vivo)

3499.5

−2.002