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Evaluating
your options is an important step in any equipment acquisition process.
We’ve tried to make it easy for you here to see that the LVEM5 hold
it’s own – and then some – when compared to classical electron
microscopes.
Compare
the specs, size, mode availability, cost and more right here….and if
you need any more information you can contact us directly.
Comparison
Table
| |
LVEM 5 |
Conventional TEM |
| Operating Modes |
TEM, STEM, SEM, ED |
TEM |
| |
|
(modes can be added) |
| |
|
|
| Size |
2 ft by 2 ft |
7 ft by 8 ft |
| |
|
|
| Installation space |
|
|
| location |
desktop, lab bench |
dedicated
room |
| electrical |
standard plug |
dedicated
HV source |
| cooling water |
no cooling water used |
water
required : 0.2-0.6 Mpa |
| compressed air |
no compressed air used |
compressed air required: '4-6 Atm |
| |
|
|
| Weight |
154 lbs |
1,609 lbs |
| |
|
|
| Operations |
Straightforward |
Complex |
| |
whole-group use |
dedicated
operator |
| |
|
|
| Cost |
5 -10 times < than
a conventional EM |
$500,000
- 2,000,000+ |
| |
|
|
| Section thickness |
20 - 30 nm. TEM |
80+ nm TEM |
| |
60 - 80 nm. TEM |
80+ nm.
STEM |
| |
|
|
| Sample in vacuum? |
yes |
yes |
| |
|
|
| |
|
|
| Natural/Inherent Contrast
(unstained samples)
|
High |
Low |
| |
|
|
| Service Contract costs |
mean cost ~ $5,000 |
mean cost ~ $30,000 |
Compare
SIZE:
Compare CONTRAST:
These
two composite images compare classical TEM results on the left with
LVEM5 results on the right.
microtubules
comparison of Malaria compare
LVEM5 sample courtesy of Dr. David Elliot, The University of Arizona
In
the malaria schizont image on the left, the nuclei membranes (yellow
arrow) are weakly contrasted but very clearly defined in the LVEM5
image on the right. Furthermore, developing merozites (red arrow) are also clearly
seen in the LVEM5 image but are barely discernable under classical TEM
imaging. The LVEM5 results are unstained.
Images courtesy of Dr. David Martin, Larry Drummy et al., The
University of Michigan
In
these images results of imaging of microtubules are compared. The
classical TEM samples on the left are stained, whereas the LVEM5
results are unstained. The LVEM5 results provide a true image of the
electron density or mass-thickness of the microtubules.
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