Nanoparticles are particles between 1 to 100 nanometers in size that can be viewed using a transmission electron microscope (TEM) at magnifications as high as 200,000 times. While TEMs provide powerful magnification and high-quality images of nanoparticles, they are expensive to operate, require specialized training and sample preparation, and are sensitive to vibration and electromagnetic interference.

2. WHAT IS NANOPARTICLES??

22. Resolution 0.2nm
Magnification power 200000 X
ATOMS!!
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28. DISADVANTAGESADVANTAGES
expensivemost powerful magnification
Laborious sample preparation
Samples are limited to those that are
electron transparent, able to tolerate the
vacuum chamber and small enough to fit in
the chamber
wide-range of applications
requires special trainingimagehigh-quality and detailed
Images are black and whiteeasy to operate with proper training
sensitive to vibration and electromagnetic
fields and must be housed in an area that
isolates them from possible exposure
TEMs are able to yield information of
surface features, shape, size