
Fluid Imaging
Fluid Operation Hardware
152 Dimension 3100 Manual Rev. D
Figure 10.2a Fluid Tip Holder
10.2.2 Tip Suggestions
Soft cantilevers, particularly oxide sharpened tips, produce the best results for biological
applications. These cantilevers are typically 100µm long, narrow-legged with oxide sharpened
silicon-nitride tips. Models DNP-S or DNP-STT are good examples. Users should experiment to
find which cantilevers work best for their sample. The application note “Choosing AFM Probes for
Biological Applications” discusses the appropriate probes for different fluid imaging applications.
Contact Veeco for a copy.
Note: For additional information on selecting a cantilever, please refer to the Veeco
website (www.veeco.com).
Removing Organic Contamination
Contaminants on the cantilever tip may limit the AFM’s resolution. Use ultraviolet light to remove
contaminants as follows:
1. Place the fluid cell with installed tip face-up on a clean surface.
2. Position a UV lamp very close (3-5mm) to the fluid cell and irradiate the unit for two
minutes at full intensity.
Note: Washing probes in 1-5% SDS (sodium dodecyl sulfate) is also effective.
CAUTION: When cleaning the cantilever holder, take care to avoid scratching
the glass surfaces in the center of the cantilever holder. Be careful
to prevent dripping any liquid onto the Dimension 3100 system,
especially onto the SPM head.
sockets not shown!!
SIDE VIEW
tip installed
BOTTOM VIEW
tip not installed
sockets shown are
on top but viewed
through bottom !!
Spring Loaded Probe Clip
Probe Clip Spring Lever
Cantilever Probe Tip
( tip faces down )
Cantilever
Mounting
Groove
( no tip
installed )
Mounting Sockets ( 4 plcs.)
( Top Side )
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