what’s cooking in microscopy: a microscopic look at the contents of a refrigerator

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What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

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Page 1: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

What’s Cooking In Microscopy:

A Microscopic Look at the Contents of A Refrigerator

Page 2: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Darkfield 40x Shark Muscle Cells

Page 3: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

DAPI Stained Fluorescent Nuclei Within Shark Muscles

Page 4: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Adobe Photoshop: Adjust Contrast - Brightness

Page 5: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Combined ImageDarkfield and Fluorescent Microscopy Done in Layers with Adobe Photoshop

Page 6: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Besides their multinucleated status, shark muscle cells have another aspect, clearly visible the polarized and DIC image below. Both 60x images are of the exact same specimen and clearly show the striations present in shark muscle tissue. Obviously, the two techniques produced dramatically different results. DIC shows slight variations in the muscle surface, while the polarized image shows only the most dramatic aspects of the striations in sharp relief.

60x Polarizer: same image!60x DIC

Page 7: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Blue Nuclei - DAPI

Red Microtubules - Phallicidin

Green N-acetyl glucosamine residues in the cells’ surface - WGA

Incidentally, the Shark Tissue was triple-stained with fluorescent dyes (10x)

Page 8: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Phase 40 x

Recrystalized Salt, 40x:

Phony Hoffmann Effect – Light Microscope

Page 9: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Focus Through Layers, 100 x Brightfield, oil immersion

Red Leaf Lettuce

Page 10: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator
Page 11: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Adobe Photoshop Hue / Saturation Adjust

Page 12: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Phase

Bottom 2 Images: Angled Stage Setting

3 Video Camera Images of Re-crystallized Sugar, 40x

Page 13: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Phase Image Converted to 8 bit grayscale in image J

But an Inverted Look-up Table produces dim results!

In Photoshop, Contrast and Brightness Adjusted

Look-Up Table Applied To Crystallized Sugar

Page 14: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

This Lookup Table Replaces 176 – 255 Red Values with 0.

It Creates a Turquoise Effect where Highlights Occurred in the Image for a colored Look at Sugar’s Crystalline Patterns

Page 15: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Onion Cell Nuclei Stained With Iodine - based Fluorescent Stain

Random Confocal Slices – Indistinct, Noisy Images…

100 x Magnification

Page 16: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

To the left: An Averaged Z-projection in Image J compiling all of the confocal slices. It produced a much cleaner image.

And with a little doctoring in Photoshop using

the diffuse glow filter and

the RGB channel mixer, the nuclei and cell membranes become much more distinct

Page 17: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

Brightfield 40 x Image of Same Onion Skin, a little dull …lots of visual goo in the sample.

To the right:

A simple convolution applied adds a little interest:

0 1 2

-1 1 1

-2 -1 0

Page 18: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

But Holy Cow!

The convolved onion skin jpeg doctored in Photoshop using Image>Adjust>Curves to give the cell membrane a psychedelic look , crazy man.

Page 19: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

1. Image J: Image>Adjust>Brightness / Contrast

2. Image J: Process>Noise>Despeckle

3. PhotoShop: Filter>Smart Blur

4. PhotoShop: Filter>Noise>Despeckle

5. PhotoShop: Touch-up with Black and grey “paint” w/paintbrush6. PhotoShop: Filter>Noise>Add Noise

Fixing Gretchen…

Page 20: What’s Cooking In Microscopy: A Microscopic Look at the Contents of A Refrigerator

The End