Although the positioning stages
in the Nanorobotics section are more robust, stronger and easier to
handle than this model, you might be confronted with tasks, where you
need a small stage which is more frame-like. This module is ideal if you
need a positioning solution for transmission light microscopy and do not
have enough space to use a Nanorobotics frame.
This linear table with dimensions
of 45 mm x 45 mm x 5.5 mm is driven by two parallel Nanomotors. The table
has a stroke of 5 mm (optional 10 mm with Big Nanomotors) and has no backlash
due to the backlash-free operation of the Nanomotors and due to the lack
of additional hinges or guiding. Two carrier plates can transport objects
while the open construction with a free hole of 20 mm x 20 mm allows transmission
experiments. Two of these tables can be combined to form an xy-positioner.
The XY-Table is suitable for scanning microscopy e.g. for a SNOM. Up to
four linear tables can be controlled by one NWC Network
Dimensions of the frame:
45 mm x 45 mm x 5.5 mm for 5 mm stroke
67 mm x 67 mm x 9 mm for 10 mm stroke
An example application:
If the XY-Table with 10x10 mm stroke is placed around the
objective of a high resolution light microscope ("Axiovert":
30 mm diameter), there is still 5x5 mm2 stroke left - with
A sample with a micrograting was moved by the XY-Table placed around the
objective of an "Axiovert" Microscope. Since the objective comes
from the bottom the space above the sample is free, e.g. for Manipulation.
In this case a contrast amplifier was placed above the sample, coupled
with a CCD-camera and a monitor to get the best magnification.
Within the fine positioning stroke the micrograting could be moved without
any vibration. The resolution of the table exceeds the microscopes resolution
by two orders of magnitude.
The stepsize of the coarse steps could be varied between 20 nm/step and
With coarse steps of 20 nm amplitude the grating could be moved so smoothly
that the microscope could not resolve any irregularity. For microbiology
this is an important feature: for example "to milk a cell",
i.e. to fix it, let it start an enzyme production, take the end of the
enzyme and pull it very slowly and smoothly out of the cell, indefinitely,
since the cell goes on with producing the enzyme.
A conventional xy-positioner of a high-resolution microscope would vibrate
too much for this experiment: The cell would burst.
The combination with high resolution light or confocal laser microscopes
results in a work station for microbiology, cell research and genetics
with entirely new properties.