transmission electron microscopy laboratory portfolio · biological figure 3. transmission electron...
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Transmission Electron Microscopy Laboratory Portfolio
Daniel Fougnier
4/29/2019
Submitted for MCR 485/683 Transmission Electron Microscopy
Spring 2019 N.C. Brown Center for Ultrastructure Studies
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These images were prepared as part of the class MCR 485/683 Transmission Electron
Microscopy at S UNY College of Environmental S cience and Forestry, S pring 2019
A ll images were acquired on the JEOL JEM
2100F Transmission Electron Microscope in the N. C . B rown Center for Ultrastructure S tudies
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Images of Biological and Materials Samples
This portfolio includes a set of micrographs from lab sessions demonstrating proper specimen preparation and imaging.
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Biological ● Mouse Kidney
■ Fixed in glutaraldehyde and osmium tetroxide
■ Embedded in A raldite
■ S tained w ith uranyl acetate and lead citrate
Materials ● S ilver Nanopow der ● Copper Nanopow der
■ 1 mg/mL suspension of nanopow der in deionized w ater, sonicated for 30 minutes
■ 1 drop of nanopow der suspension evaporated onto Formvar coated grid
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Figure 1. Transmission electron micrograph of mouse kidney tissue. Thin sections were stained with uranyl acetate and lead citrate, image was acquired with 200kV at 8kX. This micrograph features mitochondria (M), and a leukocyte (B ) within a capillary blood vessel (C). B ar=1µm
Biological
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Biological
Figure 2. Transmission electron micrograph of mouse kidney tissue. Thin sections were stained w ith uranyl acetate and lead citrate, image was acquired w ith 200kV at 8kX. This micrograph features an erythrocyte (E) and a thrombocyte (P) w ithin a capillary (C). Bar=1µm
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Biological
Figure 3. Transmission electron micrograph of mouse kidney tissue. Thin sections were stained w ith uranyl acetate and lead citrate, image was acquired w ith 200kV at 8000X. This image features a cell nucleus. The nucleolus (Nu), nuclear membrane (M), a nuclear pore (P), heterochromatin (HC), and euchromatin (EC) are labelled. B ar=1µm
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Biological
Figure 4. Transmission electron micrograph of mouse kidney tissue. Thin sections were stained w ith uranyl acetate and lead citrate, image was acquired w ith 200kV at 12kX. This image features a cell nucleus. The nucleolus (Nu), nuclear membrane (M), and heterochromatin (HC) are labelled. B ar=1000nm
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Biological
Figure 5. Transmission electron micrograph of mouse kidney tissue. Thin sections were stained w ith uranyl acetate and lead citrate, image was acquired w ith 200kV at 6000X. This image features a capillary blood vessel (C), a renal filtration membrane (F), and several mitochondria (M). B ar=2µm
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Biological
Figure 6. Transmission electron micrograph of mouse kidney tissue. Thin sections were stained w ith uranyl acetate and lead citrate, image was acquired w ith 200kV at 12kX. This image features several mitochondria (M) within renal filtration membranes. B ar=1000nm
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Biological
Figure 7. Transmission electron micrograph of mouse kidney tissue. Thin sections were stained w ith uranyl acetate and lead citrate, image was acquired w ith 200kV at 25kX. This image features two mitochondria (M) with visible christae (Ch). B ar=500nm
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Materials
Figure 8. Transmission electron micrograph of silver nanopowder. Grids were prepared by evaporation of a drop of 1mg/mL suspension of nanopowder in deionized water. Image was acquired w ith 200kV at 15kX. This image features an overview of silver nanoparticle clusters, labelled Ag. B ar=500nm
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Materials
Figure 9. Transmission electron micrograph of silver nanopowder. Grids were prepared by evaporation of a drop of 1mg/mL suspension of nanopowder in deionized water. Image was acquired w ith 200kV at 100kX. This image features an overview of a single cluster of silver nanoparticles, labelled Ag. A tomic lattice moire pattern labelled ML. B ar=200nm
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Materials
Figure 10. Transmission electron micrograph of silver nanopowder. Grids were prepared by evaporation of a drop of 1mg/mL suspension of nanopowder in deionized water. Image was acquired w ith 200kV at 150kX. This image features an overview of a single silver nanoparticle, labelled Ag. B ar=50nm
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Materials
Figure 11. Transmission electron micrograph of silver nanopowder. Grids were prepared by evaporation of a drop of 1mg/mL suspension of nanopowder in deionized water. Image was acquired w ith 200kV at 1.2MX. This image features atomic lattice resolution of a single silver nanoparticle, labelled Ag (approximate diameter 24nm). A tomic lattice labelled Lat . B ar=10nm
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Materials
Figure 12. Transmission electron micrograph of silver nanopowder. Grids were prepared by evaporation of a drop of 1mg/mL suspension of nanopowder in deionized water. Image was acquired w ith 200kV at 1.2MX. 100% crop of Figure 9 depicting resolution of the atomic lattice structure.
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Materials
Figure 13. Transmission electron micrograph of copper nanopowder. Grids were prepared by evaporation of a drop of 1mg/mL suspension of nanopowder in deionized water. Image was acquired w ith 200kV at 200kX. Image depicts copper particles (Cu) encased in poly(vinyl alcohol) dispersant (PVA). B ar=50nm.
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Materials
Figure 14. Transmission electron micrograph of copper nanopowder. Grids were prepared by evaporation of a drop of 1mg/mL suspension of nanopowder in deionized water. Image was acquired w ith 200kV at 800kX. Image depicts copper particles (Cu) encased in poly(vinyl alcohol) dispersant (PVA). B ar=10nm.