Phase Contrast HRTEM and DF-STEM Electron Tomography Reconstructions of Polymer/Layered Silicate Nanocomposites
نویسندگان
چکیده
منابع مشابه
Zernike Phase Contrast Cryo-Electron Tomography of Bacteria and Viruses
Cryo-electron tomography (cryo-ET) is currently the only method available through which pleomorphic biological specimens are imaged to produce three-dimensional (3D) structures at ~2 to 10 nm resolution [1]. There remain challenges associated with imaging intact bacteria and pleomorphic viruses by cryo-ET. In particular, investigators cope with the low contrast of cryo-preserved, unstained spec...
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To understand synaptic function, unveiling molecular architecture of synapse is one of the important issues. TEM observation of plastic embedded specimens stained with heavy metals has fundamentally contributed to our knowledge about basic structural features of neuronal synapses. However, structural investigations of synapse at the close-to-physiological state are required for a further unders...
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Microstructure reconstructions resulting from diffraction contrast tomography data of polycrystalline bulk strontium titanate were reinvestigated by means of electron backscatter diffraction (EBSD) characterization. Corresponding two-dimensional grain maps from the two characterization methods were aligned and compared, focusing on the spatial resolution at the internal interfaces. The compared...
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Biological samples are very sensitive to beam irradiation because of induced changes to their structure by the incident electron. Due to the limited allowed dose, cryo-images of frozen-hydrated biological specimens are typically noisy and low in contrast. One way to improve the imaging of such samples is by using a phase plate to increase contrast and signal-to-noise ratio. The improved contras...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2005
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s143192760550401x