TABLE 1.
Comparison of test parameters between the nanometer- and the micrometer-scale modulus measurements of soft biological materials by IT AFM
Nanoregime | Microregime | |
---|---|---|
Radius of the tip | Several nm (i.e., ∼20 nm) | Few μm (i.e., ∼2.5 μm) |
Applied load | NanoNewton (i.e., ∼1.8 nN) | MicroNewton (i.e., 15 nN–3.3 μN) |
Indentation depth | Several 10 to a few 100 nm (i.e., 300–550 nm) | Several 100 nm (i.e., 250–600 nm) |