Types of Interactions & Forces Measured in AFM

[philip041]

I am trying to make sense of some notes given to me by my lecturer; he is not responding and exam is soon! The question is 1) name 3 types of interaction measured in AFM 2) name 3 types of interaction forces that are measured in AFM 3) how are the forces measured?

The notes say:

Interaction type (some stats relevant to each one)
Ion/Ion
Ion/Dipole
Ion/Dipole

Chemical bonds
Covalent/Ionic
Hydrogen
Van de Waals

Typical forces
Covalent bonds
Hydrogen bonds
Van de Waals
Layer forces
Miniskus forces

So the various interactions are ion/ion ion/dipole dipole/dipole?
The forces are any of those labelled under typical forces?
How does the AFM tip interact with the surface?

Sorry massive list of questions.

 

[tiny-tim]

I am trying to make sense of some notes given to me by my lecturer; he is not responding and exam is soon! The question is 1) name 3 types of interaction measured in AFM 2) name 3 types of interaction forces that are measured in AFM 3) how are the forces measured?

Hi philip041!

wikipedia has a pretty comprehensive account at http://en.wikipedia.org/wiki/Atomic_force_microscope

 

[philip041]

funnily enough....