
Fluid Imaging
Troubleshooting
174 Dimension 3100 Manual Rev. D
10.6.4 Unable to Locate Particulate Samples
Some particulate samples (i.e., proteins) may prove difficult to find directly beneath a cantilever if
the cantilever remains stationary during a diffusion or settling period. This may be due to the fact
that some types of particulates are more attracted to the cantilever than to the substrate intended to
support them. The result is a “shadow” on the substrate directly beneath the cantilever where fewer
sample individuals are located; they are stuck to the cantilever. If you suspect this problem, simply
shift the imaging site to a location outboard of the tip and cantilever. You should find more
individual samples there.
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