The 7500 scanner.
luids and in air. Easy-to-load nose cones
for additional FM techniques can be
interchanged quickly and conveniently.
These nose cones are made from PEEK
polymers, have low chemical reactivity,
and can be utilized in a wide range
of solvents.
The system’s video optics include a
color camera and can resolve details
to less than 1.7µm. Open access to the
scanner and easy alignment of the optics
help simplify use of the 7500. The user
friendly scanner has a built-in detector,
no cables to plug-in and is easy to
calibrate.
Environmental and
Temperature Control
The 7500 FM system includes a built-in
environmental chamber engineered to
meet the many requirements of intricate,
demanding nanoscience applications.
The chamber provides an easily
accessible, sealed sample compartment
that is completely isolated from the rest
of the system. Six inlet/outlet ports
permit the low of different gases into or
out of the sample area.
The system’s scanner resides outside the
environmental chamber, so it is protected
from contamination, harsh gases,
solvents, caustic liquids, and other
potentially damaging environments.
Humidity levels are monitored by sensors
built into the chamber. Oxygen and
reactive gases can be introduced into
and purged from the sample chamber.
Robust, easy-to-handle sample plates
designed speciically for use with the
7500 are offered to facilitate studies in
air, in fluids, or with electrochemistry.
Agilent’s temperature control system
employs a patented thermal insulation
and compensation design to deliver the
industry’s most precise temperature
control. This highly versatile option
allows imaging during temperature
changes and is fully compatible with all
imaging modes, including those utilized
in fluids. The temperature controller’s
unique system’s design isolates the
sample plate from the rest of the system,
2
improving stability and performance.
Temperatures can be controlled from
-30°C up to 250°C, with suitable
resolution and control to match any
experimental requirements.
MAC Mode
gilent’s patented MC Mode is a
gentle, nondestructive FM imaging
technique that employs a magnetic
ield to drive a paramagnetically coated
cantilever, yielding precise control over
oscillation amplitude (thus providing
excellent force regulation). Since only the
tip is driven, the signal-to-noise ratio is
greatly enhanced, yielding a significant
improvement while imaging in luids.
MC Mode has allowed researchers
to resolve sub-molecular structures
that could not be resolved with any
other FM technique. It is particularly
useful for imaging delicate samples
Figure 1. Topography image (left) of polished duplex stainless steel. MFM image (right)
showing ferrite and Austenite domains of the duplex stainless steel. Scan size: 10 µm.
Figure 4. Closed-loop topography image of
C
36
H
74
. Scan size: 162nm.
Figure 2. High resolution closed-loop MAC
mode image of bacteriorhodopsin, revealing
the donut-like structure of bacteriorhodopsin
trimers, and the connecting fibrous arms in
between. Scan size: 120 nm.
Figure 3. Closed-loop contact mode,
topography images of atoms on mica.
Scan size: 10 nm.
