Biomedical Engineering Reference
In-Depth Information
Figure 6
. Diagram of atomic force microscopy used to measure molecular bonds (12).
Figure 7
. Experimental (circles and triangles) and theoretical (curves) force versus dis-
tance data for molecular adhesion measurements (18).
Figure 8
. Stress-strain curves for a single collagen fiber (left) and for a
network of collagen fibers (right) (45).
these fibers linked together to obtain a constitutive model of the bulk material
(45) (Figure 8).
Many models use statistical models, Gaussian or Langevin, to represent the
mechanics of a single molecule, and then consider the behavior of a unit cell
made of a small group of molecules to determine the bulk behavior (Figure 9).
Bischoff et al. used a Langevin model of a single fiber and an eight-chain unit
