Energy-filtered transmission electron microscopy of ferritin.
- 1 January 1982
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 79 (1), 106-107
- https://doi.org/10.1073/pnas.79.1.106
Abstract
The focusing properties of a magnetic-sector spectrometer are shown to be suitable for forming high-spatial resolution, energy-filtered transmission electron microscope images. Filtered images of ferritin molecules by using electrons scattered from the characteristic iron M2,3 and carbon K absorption edges clearly distinguish the 75-.ANG. iron core and 120-.ANG. protein shell. The minimum detectable mass is estimated to be 0.84 .times. 10-20 g for Fe for an electron dose of 18 C/cm2 and 99% confidence.This publication has 12 references indexed in Scilit:
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