Hello,
Before we order new tips, I try to decide which cantilever-tip would be the more
efficient to deduce the topography of my surface at dry and liquid conditions.
My surface is a polymeric film Polybutadiene-Polyethylene oxide. Polymer chains
conformation is expected to be brush or mushroom like and the chains be assembled in
micelles.
In that architecture, Polybutadiene is most likely to be found away from the substrate
that support the film while Polyethylene oxide likes more the substrate.
Micelle diameter calculations range from 5nm to 140nm.
What tip spring constant k (mN/m) and radius (nm) you think would fit better to study the
topography as described above?